Events Archive

RS-APS Seminar

Capture and Non-Destructive Detection of Ion Bunches for High-Intensity Laser Experiments

Markus Kiffer
Institute of Optics and Quantum Electronics, University of Jena

RS-APS Seminar

To Be Announced

Israa Salaheldin
Helmholtz Institute Jena

Institutsseminar

X-ray Wave Mixing: Observing Spontaneous and Stimulated Processes

Dr. Christina Bömer
DESY, Hamburg

Institutsseminar

Ion Track Nanotechnology: From Filter Production to Highly Sensitive Biomimetic Sensors and Energy Materials

Dr. Maria Eugenia Toimil Molares
GSI, Materials Research Department

Institutsseminar

Pushing the Particle Energy Frontier: Plasma Wakefield Acceleration and the AWAKE Experiment at CERN

Dr. Edda Geschwendtner
CERN

Institutsseminar

From Quantum Imaging to Computing – Exploiting the versatile correlations of photonic quantum states

Dr. René Sondenheimer
Fraunhofer IOF

Abstract:

In this talk, I will give a brief overview on different applications of photonic quantum information theory. In particular, we will discuss three main topics. First, I will give an introduction into quantum imaging with undetected photons which is an imaging technique based on correlations of biphoton states that have been generated in nonlinear processes. These correlations allow for obtaining an image of an object with light that never interacted with that object. After highlighting the importance of nontrivial correlations within bipartite quantum systems, I will motivate that the generation of higher harmonics might offer a novel tool to generate such resource states for quantum information processing in the near future. Finally, I will discuss how the correlations between different photonic modes can be exploited to solve computationally hard tasks.

RS-APS Seminar

Signatures of Quantum Vacuum Nonlinearity in Two-Beam Laser Collisions

Chantal Sundqvist
Institute of Theoretical Physics, University of Jena

Institutsseminar

Observation of the radiative decay of the low energy thorium-229 isomer: En route towards a nuclear clock

Dr. Sandro Krämer
KU Leuven

Institutsseminar

Technology developments towards high-resolution, ultra-large microcalorimeter arrays for photon science

Prof. Dr. Sebastian Kempf
Karlsruhe Institute of Technology

Abstract:

In recent years, cryogenic microcalorimeters have impressively proven to advance the state of the art in the detection of ionizing radiation as they combine an excellent energy resolution and fast signal rise time with a quantum efficiency close to 100%. For this reason, microcalorimeter arrays are hot candidates for future instrumentation at next-generation brilliant light sources. However, the resolution of present arrays still lacks behind existing wavelength-dispersive spectrometers. Similarly, the sensitive area is still significantly smaller as compared to semiconductor-based X-ray spectrometers. To overcome these limitations, technology developments are of utmost importance to allow for closely-packed microcalorimeter arrays consisting of thousands of individual detector, each providing sub-eV energy resolution. Within this context, this talk will present our most recent progress related to the development of such outstanding instruments. More precisely, we will discuss several multiplexing strategies as well as novel detector concepts for reaching sub-eV energy resolution.

Zehnte gemeinsame Lecture Week von RS-APS und HGS-HIRe

Institutsseminar

Laser Spectroscopy of Antiprotonic Helium Atoms and Pionic Helium Atoms

Masaki Hori
Max Planck Institute for Quantum Optics, Garching

RS-APS Seminar

Time-Frequency Analysis of the SFQED Scattering Processes

Nikita Larin
Institute of Optics and Quantum Electronics, University of Jena

RS-APS Seminar

Continuously Tunable High Photon Flux High Harmonic Source

Alexander Kirsche
Institute of Applied Physics, University of Jena

Institutsseminar

Characterization of the Brain at Sub-Cellular Level Using Synchrotron X-ray Imaging

Dr. Marina Eckermann
European Synchrotron Radiation Facility (ESRF), Grenoble

RS-APS Seminar

Interaction of atoms with vortex light beams in the presence of the oscillating magnetic field

Shreyas Ramakrishna
Institute of Theoretical Physics, University of Jena

Institutsseminar

High Energy Density Science at the European XFEL: Combining Bright X-rays, Tiny Diamonds and Intense Lasers

Ulf Zastrau
XFEL, Hamburg

RS-APS Seminar

Superconducting Tunnel Junctions for Energy-Resolved Radiation Detection in the XUV Range

Nikhilesh Dilwaliya
Leibniz Institute of Photonic Technology

Institutsseminar

Innovative Cancer Therapies Using Charged Particle Irradiation

Claudia Fournier
GSI Helmholtzzentrum für Schwerionenforschung

RS-APS Seminar

Polarization-Flipped Quantum Vacuum Signal in Laser Beam Collisions

Fabian Schütze
Institute of Theoretical Physics, University of Jena

Institutsseminar

Electron-Ion Collisions - Absolute Cross Sections for Astrophysics and Plasma Physics and Spectroscopy of Highly Charged Ions

Stefan Schippers
University of Giessen

Electron-impact ionization and electron-ion recombination are basic atomic processses that govern the charge balance in plasma. Accurate cross sections for the processes are required for being able to model and understand man-made and cosmic plasmas. In my talk I will provide and overview of past and present efforts aiming at providing benchmark cross-sections from electron-ion collision experiments at the Giessen electron-ion crossed-beams setup and at the electron coolers of heavy-ion storage rings. Moreover, the potential of cold electron beams for precision spectroscopy of highly charged ions will be pointed out  and future directions of electron-ion collision work at, in particular, CRYRING will be discussed.

Institute’s Seminar

Towards Frequency Metrology of the Optical Hyperfine Structure of Highly Charged Ions Using Quantum Logic

Peter Micke
BASE Collaboration, CERN, Geneva

Highly charged ions (HCI) are extreme atoms with favorable properties for the study of fundamental physics and the search for new physics [1]. They feature a simple atomic structure due to a small number of bound electrons, strong electromagnetic fields to which the electrons are exposed, and a low sensitivity to external perturbing fields [2]. Recent developments such as Coulomb crystallization [3], the application of quantum logic [4], and algorithmic ground-state cooling [5] have made HCI accessible for use in the most accurate measurement devices: optical atomic clocks, which today reach fractional uncertainties of 10^-18.

In this talk, I will briefly review how we overcame all previous obstacles to realize the first optical atomic clock based on an HCI. I will present our frequency ratio measurement of the ground-state fine-structure transition in Ar¹³⁺ at 441 nm against the electric-octupole transition in ¹⁷¹Yb⁺ at a fractional uncertainty of about 1x10^-16, limited by statistics and improving the previous uncertainty level by eight orders of magnitude [6]. By comparing the transition frequencies of the two isotopes ⁴⁰Ar¹³⁺ and ³⁶Ar¹³⁺, we determined the isotope shift with a relative uncertainty of 5.7x10^-11, an improvement of nine orders of magnitude that resolves the QED nuclear recoil contribution [6]. In the second part of my talk, I will discuss how the measurement concept can be extended to optical hyperfine-structure transitions which are available in heavy hydrogen-like or lithium-like HCI.

1. M. S. Safronova et al., Rev. Mod. Phys. 90, 025008 (2018)
2. M. G. Kozlov et al., Rev. Mod. Phys. 90, 045005 (2018)
3. L. Schmöger et al., Science 347, 1233–1236 (2015)
4. P. Micke et al., Nature 578, 60–65 (2020)
5. S. A. King et al., Phys. Rev. X 11, 041049 (2021)
6. S. A. King et al., Nature (in print)

26th Conference on the Application of Accelerators in Research and Industry (CAARI)

Institute’s Seminar

Imaging Techniques in Mössbauer Spectroscopy: Carrier Trapping on Iron Impurities in Si Solar Cells and Carbon Diffusion in Fe Steel

Yutaka Yoshida
Helmholtz Institute Jena

Institute’s Seminar

Collinear Laser Spectroscopy of Highly Charged Ions for Nuclear Structure and Fundamental Research

Wilfried Nörtershäuser
TU Darmstadt

Collinear laser spectroscopy has been applied on beams of highly charged ions from the keV to the GeV range. Helium-like systems of light isotopes are studied at the Collinear Apparatus for Laser Spectroscopy and Applied Sience (COALA) at TU Darmstadt to extract nuclear charge radii and nuclear moments of stable isotopes. This approach is based on nonrelativistic QED calculations with the highest currently achievable accuracy. At the Experimental Storag Ring (ESR) at GSI Darmstadt, heavy highly charged ions were studied to test QED in the strongest magnetic fields available in the laboratory. Here, laser spectrosocpy is performed on hydrogen-like Bi⁸²⁺ and lithium-like Bi⁸⁰⁺ ions at about 70% of the speed of light. I will present the status of these experiments and provide an outlook for further studies on short-lived species and at higher accuracy. 

Annual Meeting of the Helmholtz Programm “Matter and Technologies”

Trapped Charged Particles Conference 2022 (TCP2022)

28th International Nuclear Physics Conference (INPC2022)

19th SPARC Topical Workshop

0

German Conference for Research with Synchrotron Radiation, Neutrons and Ion Beams at Large Facilities (SNI2022)

20th International Conference on the Physics of Highly Charged Ions (HCI)

RS-APS Seminar

Ponderomotive Scattering as a Means of Intensity Measurement in Focus

Tom Teter
HI Jena

EMMI Workshop on “HITRAP Facility and Experiments – Status and Future Perspectives”

Institute´s Seminar

Impact of the Laser Spatio-Temporal Shape on Breit-Wheeler Pair Production

Anthony Mercuri-Baron
Sorbonne Univ., Paris

Institute´s Seminar

New Horizons for Ultrafast Pulse Compression

Marcus Seidel
DESY

RS-APS Seminar

0

14th European Conference on Atoms, Molecules and Photons (ECAMP)

RS-APS Seminar

Multispectral Imaging in the Extreme Ultraviolet by Spectral Tuning of High Order Harmonics

Sici Wang
HI Jena/IAP

14th International Symposium of EBIS/T

11th International Conference on Precision Physics of Simple Atomic Systems (PSAS)

RS-APS Seminar

Relativistic Electron-Cyclotron Resonances in Laser Wakefield Acceleration

Matthew Schwab
IOQ

Institute´s Seminar

Optical Advances in Hard X-Ray Spectroscopy

Hasan Yavas
SLAC

Plasma Physics Seminar

Spring Meeting of DPG Section “Atome, Moleküle, Quantenoptik und Plasmen”

Semiannual Meeting of the HI Jena

IOQ Seminar

IOQ Seminar

RS-APS Seminar

IOQ Seminar

RS-APS Seminar

IOQ Seminar

AP Seminar

IOQ Seminar

RS-APS Seminar

0

IOQ Seminar

IOQ Seminar

IOQ Seminar

RS-APS Seminar

IOQ Seminar

MML Workshop 2021

0

IOQ Seminar

IOQ Seminar

RS-APS Seminar

IOQ Seminar

RS-APS Seminar

9th Joint Lecture Week of RS-APS and HGS-HIRe

This lecture week will be organized by RS-APS in cooperation with HGS-HIRe. Owing to the ongoing pandemic situation, this event will be an online-only videoconference, realized through the Zoom service.

Topic: Novel Applications of Modern Laser Technologies

Semiannual Meeting of the HI Jena

Meeting of DPG Section “Atome, Moleküle, Quantenoptik und Plasmen”

ExHILP 2021

18th SPARC Topical Workshop

0

Doctoral students conference on optics DoKDoK 2021

Meeting of DPG Section “Materie und Kosmos”

XXXII International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC)

0

IOQ Seminar

RS-APS Seminar

IOQ Seminar

RS-APS Seminar

0

52nd Conference of the European Group on Atomic Systems (EGAS)

AP Seminar

0

IOQ Seminar

RS-APS Seminar

IOQ Seminar

IOQ Seminar

Annual Meeting of the Helmholtz Programm "Matter and Technologies"

0

RS-APS Seminar

IOQ Colloquium

IOQ Seminar

IOQ Seminar

RS-APS Seminar

IOQ Seminar

IOQ Seminar

IOQ Seminar

IOQ Seminar

RS-APS Seminar

IOQ Seminar

IOQ Seminar

RS-APS Seminar

Thüringer Forschungspreis 2021

0

Semiannual Meeting of the HI Jena

RS-APS Seminar

IOQ Seminar

Annual Meeting of the Helmholtz Programm "Matter and Technologies"

The seventh annual meeting of the programme Matter and Technologies will take place from Tuesday, February 2, 2021 to Wednesday, February 3, 2021.

The day before the workshop, Monday, February 1, 2021, students connected to the programme will organize the Seventh MT student retreat, starting around noon on Monday.

IOQ Seminar

RS-APS Seminar

AP Seminar

IOQ Seminar

Annual Meeting of the ErUM-FSP APPA 2021

SPARC User and Collaboration Workshop: Stored and Cooled Heavy Ions at FAIR Phase-0 2021

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

RS-APS Seminar

0

Semiannual Meeting of the HI Jena

Eigth Joint Lecture Week of RS-APS and HGS-HIRe

This lecture week will be organized by RS-APS in cooperation with HGS-HIRe. Owing to the current situation, this event will be an online-only videoconference, realized through the Zoom service.

Topic: The Prospects of Cryogenic Detectors and Superconducting Electronics: From Fundamental Research to Applications

German Mössbauer Workshop 2020

0

17th SPARC Topical Workshop

0

Joint International Symposium on Microbial and Biomolecular Interactions

Student Workshop in cooperation with NaWi School e.V.

Institute´s Seminar

0

Institute´s Seminar

0

Institute´s Seminar

0

Semiannual Meeting of the HI Jena

Institute´s Seminar

0

APPA R&D Collaboration Meeting 2020

Institute´s Seminar

0

Institute´s Seminar

0

Seventh Joint Lecture Week of RS-APS and HGS-HIRe

This lecture week will be organized by RS-APS in cooperation with HGS-HIRe.

Topic: Imaging Techniques from the Optical to the X-Ray Regime

HGS-HIRe SUMMER STUDENT PROGRAM at GSI / FAIR

Institute´s Seminar

0

EMMI Workshop on "Functional Methods in Strongly Correlated Systems"

COST-THOR Spring School on Science Communication

0

Annual Meeting of the Helmholtz Programm "Matter and Technologies"

The fifth annual meeting of the programme Matter and Technologies will take place at Helmholtz Institute Jena from Tuesday, March 5, 2019 to Thursday, March 7, 2019.

The day before the workshop, Monday, March 4, 2019, there will be the opportunity for topical meetings. In addition the students connected to the programme will organize the Fifth MT student retreat, starting around noon on Monday.

Semiannual Meeting of the HI Jena

RS-APS Seminar

We talk about one-dimensional quantum walk driven by entangled coins. We will demonstrate that the entanglement, introduced by the coins, enables one to steer the walker's state from a classical to standard quantum-walk behavior, and to novel behavior not found for one-dimensional walks otherwise. We also show that states with a symmetric density distribution and a maximum or minimum of the entropy are found only for maximally entangled initial states (Bell states). On the other hand, the type of probability density distribution and its variance are only determined by entangled coins. In addition, we explain how the entanglement of initial state determines the most probable place to find the walker.

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

Sixth Joint Lecture Week of RS-APS and HGS-HIRe

This lecture week will be organized by RS-APS in cooperation with HGS-HIRe.

Topic: Interface between Atomic- and Nuclear Physics

Institute´s Seminar

0

EMMI Rapid Reaction Task Force Workshop

0

Doctoral students conference on optics DoKDoK 2018

Take part in the 7th DoKDoK! The conference provides a great opportunity for young researchers, academicians and industry players working in Optics and Photonics to present their newest findings, share experience, and network in a friendly and collegial atmosphere. The conference is held entirely in English and has an international focus.

PhD students are cordially invited to submit their original contributions. The technical program will include invited talks from academicians and industry representatives.

Abstract submission deadline: 30th June 2018

15th SPARC Topical Workshop

0

19th international Conference on Physics of Highly Charge Ions (HCI 2018)

Institute´s Seminar

0

26th International Conference on Atomic Physics, ICAP

0

RS-APS Seminar

0

Institute´s Seminar

0

50th Anniversary European Group on Atomic Systems (EGAS)

0

RS-APS Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

PSAS´2018 – the International Conference on Precision Physics of Simple Atomic Systems

Semiannual Meeting of the HI Jena

RS-APS Seminar

0

SCS Instrument Early User Workshop

SQS Instrument Early User Workshop

Institute´s Seminar

0

APPA R&D collaboration meeting

Institute´s Seminar

0

RS-APS Seminar

0

Seminar

0

Institute´s Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

This thesis describes the development of a particle counter based on a Cerium activated yttrium aluminium perovskite (YAP:Ce) scintillator. The detector is designed for charge exchange experiments at the relocated ion storage ring CRYRING at the GSI Helmholtz Zentrum für Schwerionenforschung in Darmstadt. It will be used for charge exchange experiments. The suggested detector design was developed regarding the requirements set by the desired ultra high vacuum conditions of up to 10⁻¹² mbar at CRYRING in combination with a high radiation hardness against ion irradiation. The design was kept as simple as possible offering an easy exchange of the scintillator (not limited to YAP:Ce) if necessary.

For an estimation of the detector lifetime the radiation hardness was systematically investigated for Hydrogen, Oxygen and Iodine irradiation in the energy regime of 1 – 10 MeV. The measurement took place at the JULIA tandem accelerator. For the measurement of detector degradation the light yield was used. Values determined for the critical fluence, defined as fluence at half the initial light yield, varied from 1 × 10¹⁵ cm⁻² in the case of hydrogen down to 1.7 × 10¹² cm⁻² for iodine irradiation.

Prior to the hardness investigation, the used photomultiplier tube (PMT) was tested for anomalous behaviour like temporal or spatial dependence of the output signal. Taking the experimental uncertainties into account no such dependencies could be observed. It was concluded that the investigated PMT was well suited for the use in the experiment and later on the particle counter.

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

The Institut Laue-Langevin operates a number of instruments for neutron capture based gamma ray spectroscopy. Amongst them there are the ultra-high resolution crystal spectrometers GAMS, which operate at a tangential beam tube of ILL’s neutron high flux reactor. From targets in this beam tube gamma rays in an energy range from 50–8000 keV and intensities of 10⁹ s^-1 cm^-2 eV^-1 can be obtained. Based on these extra-ordinary intensities it was possible to develop unique techniques based on gamma ray monochromatisation via diffraction at perfect crystals. The talk gives an overview on a number of experiments in nuclear, fundamental and applied physics profiting from the outstanding performances of the GAMS spectrometers. A particular focus will be made on the recent research of gamma ray optics and an experiment for nuclear resonance fluorescence based radiography of lithium. The future perspectives of these techniques at tunable gamma ray sources such as ELI-NP will be detailed.

Doctoral students conference on optics DoKDoK 2017

0

Fifth Joint Lecture Week of RS-APS and HGS-HIRe

0

SPARC Topical Workshop 2017

0

19th International Conference on “Physics of Highly Charged Ions” HCI

0

5th International FAIR School

24th Euroschool on Exotic Beams

0

Institute´s Seminar

0

International EMMI Workshop on Plasma Physics at FAIR

The Plasma Physics program at FAIR, one essential part of the FAIR project, will exploit a dedicated beamline and target area with unprecedented ion intensities. This offers worldwide unique capabilities to the plasma physics community.  Already during the construction phase it will be possible to run an attractive experimental program at the SIS-18 target area or using the PHELIX laser. The three-day workshop will give an opportunity to discuss upcoming experiments and continue developing the science program of the plasma physics community at FAIR.

Workshop topics include:

• Physics of high energy density states: theory, experiments, diagnostics
• EOS of matter under extreme conditions
• Energy transport in warm dense matter
• Atomic processes in strongly coupled plasmas
• Laser based photon and particle sources for HED/WDM-diagnostics
• Materials research, atomic physics, and biophysics related to plasma physics
• Experiments with ion beams in 2018–2019 from SIS 18
• Combined laser and ion beam experiments

Institute´s Seminar

0

RS-APS Seminar

0

OMA School on Medical Accelerators

0

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

Open House at FAIR and GSI

Accelerators and experiments at the existing GSI facility open their doors to the public. The future FAIR facility presents their plans for civil construction and the experimental program. Dive into a world of science and explore “the universe in the laboratory.”

Semiannual Meeting of the HI Jena

0

RS-APS Seminar

0

APPA R&D Kick-Off Meeting

0

RS-APS Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

Atomic Physics with (super) Heavy Atoms and Ions

0

Institute´s Seminar

0

Fourth Joint Lecture Week of RS-APS and HGS-HIRe

This lecture week will be organized by RS-APS in cooperation with HGS-HIRe.

Topic: Innovative detectors for photons and particles

Doctoral students conference on optics DoKDoK 2016

0

Institute´s Seminar

0

SPARC Topical Workshop 2016

The 13^th SPARC Topical Workshop will take place between 16^th and 20^th September 2016 at Marian Smoluchowski Institute of Physics of the Jagiellonian University in Kraków, Poland.

Topics include

• Atomic Collisions with Highly Charged Ions
• Critical and Super-critical Fields
• Laser and X-ray Spectroscopy
• Cross-link between Atomic and Nuclear Physics
• CRYRING: Status and Instrumentation
• HESR: Status and Instrumentation
• HITRAP: Status and Instrumentation
• APPA cave: Experiments and Instrumentation
• SPARC Relevant International Facilities
• Status SPARC Collaboration

18th International Conference on the Physics of Highly Charged Ions (HCI-2016)

The 18th International Conference on the Physics of Highly Charged Ions will be held from 11 to 16 September 2016 in Kielce, Poland. The HCI-2016 follows a series of biennial HCI conferences, with last three meetings held in San Carlos de Bariloche (Argentina, 2014), Heidelberg (Germany, 2012) and Shanghai (China, 2010). The HCI-2016 will be organized by the Institute of Physics of the Jan Kochanowski University (UJK) in Kielce, which is located in Central Poland in the heart of the Holy Cross Mountains, just between Warsaw (Warszawa) and Cracow (Krakow), the present and former Polish capitals.

International Student Summer Programme on X-Ray and Neutron Science

17th Advanced Accelerator Concepts Workshop (AAC 2016)

The 17th Advanced Accelerator Concepts Workshop (AAC 2016) will be held at the Gaylord National Resort & Convention Center from July 31st to August 5th, 2016.

AAC 2016 is a by-invitation-only biennial forum for intensive discussions on long-term research in advanced accelerator physics and technology, for applications ranging from high energy physics to photon science. AAC 2016 will organize into working groups covering the following topical areas:

• Laser-Plasma Wakefield Acceleration
• Computations for Accelerator Physics
• Laser and High-Gradient Structure-Based Acceleration
• Beam-Driven Acceleration
• Beam Sources, Monitoring, and Control
• Laser-Plasma Acceleration of Ions
• Radiation Generation and Advanced Concepts
• Advanced Laser and Beam Technology and Facilities

HGS-HIRe Summer Student Program at GSI/FAIR

Institute´s Seminar

0

Semiannual Meeting of the HI Jena

0

43rd European Physical Society Conference on Plasma Physics

The 43rd European Physical Society Conference on Plasma Physics will take place in Leuven, Belgium, from 4 to 8 July 2016. This series of EPS plasma physics conferences is organized by the EPS Plasma Physics Division and covers the wide field of plasma physics, ranging from nuclear fusion research to low temperature plasmas, including space and astrophysical plasmas as well.

RS-APS Seminar

0

Institute´s Seminar

The interaction of matter with high-intensity lasers is traditionally described by modelling the laser as a plane wave background field. This description becomes invalid (i) at ultra-high intensities requiring strong focussing and (ii) whenever there is substantial back-reaction on the external field yielding e.g. beam depletion. I will describe a number of theoretical attempts aimed at improving the current methodology to deal with these rather extreme, but soon experimentally feasible, conditions.

Physik in Hollywood

0

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

PSAS´2016: International Conference on Precision Physics of Simple Atomic Systems

The conference is devoted to precision studies of simple atoms and molecules in order to develop new approaches and to access various fundamental issues within and beyond atomic physics, and possible new physics. Applications include aspects from particle and nuclear physics, atomic and molecular physics, astrophysics, metrology, etc.

Conference topics include :

• Precision spectroscopy of hydrogen, its isotopes and other light atoms
• Precision frequency measurements and determination of fundamental constants
• Quantum electrodynamics and advanced quantum mechanics
• Study of pure leptonic systems, muonic and exotic atoms
• Study of few-electron ions with medium and high Z
• Search for variation of fundamental constants and tests of fundamental symmetries
• Casimir Effect and its applications
• Structure of light nuclei and other hadronic effects
• Fundamental constants of particle physics
• Quantum Information
• (Astrophysics and Cosmology)
• (New SI system)

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

607. Wilhelm und Else Heraeus-Seminar on “Semiconductor detectors in astronomy, medicine, particle physics and photon science”

The 607. Wilhelm und Else Heraeus-Seminar on “Semiconductor detectors in astronomy, medicine, particle physics and photon science” brings together young and senior scientists, scientists from academia and industry and researchers from university and laboratories with interests in the field of semiconductors.

The goals of the seminar are

• to get informed on the state-of-the-art in the field of semiconductor detectors
• to bring together leading scientists, detector builders and detector users in astronomy, astrophysics, medicine, particle physics and photon science
• to review and to identify new trends and challenges
• to promote young scientists

The program consists of invited talks with ample time for discussion and a podium discussion. We encourage everyone, in particular young scientists, to contribute a poster to the poster session.
The three best posters will be awarded a prize. The Wilhelm und Else Heraeus-Foundation kindly supports the accommodation of all participants and will cover full board accommodation during the seminar (beverages not included).

RS-APS Seminar

0

Institute´s Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

RS-APS Seminar

0

RS-APS Seminar

0

Work & Laser Safety Instructions 2015

0

Institute´s Seminar

Laser plasma accelerators (LPAs) hold great promise as ultra-compact electron sources because of their high acceleration gradients (~GeV/cm) and flexible format, but have yet to gain wide-spread acceptance due to limitations in their tunability and stability. These limitations, caused by the fluid nature of the accelerator formation, have required the development of sophisticated new techniques tailored to manage the microscopic dynamics of the laser-plasma interaction. This talk will highlight recent work aimed at addressing the unique control challenges of this accelerator format, including the use of multiple-pulse collisions to trigger electron injection, the use of tomography to see through walls, the use of spectroscopic imaging to track gas-plume and laser evolution and the use of chirped-pulse interferometry to resolve wake-induced Raman shifts. These methods provide a tremendous wealth of in-situ, shot-by-shot information from within the accelerator, enabling control of and shining new light on what has previously been a black box accessible primarily by simulation.

Semiannual Palaver Helmholtz Institute Jena

Institutsseminar des IFK

0

Institute´s Seminar

0

Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

International Conference on Accelerator Optimization

12th Topical Workshop of the SPARC Collaboration

Please note that hotel conditions at the conference site make an early registration deadline of August 10^th necessary.

Third Joint Lecture Week of RS-APS and HGS-HIRe

This lecture week will be organized by RS-APS in cooperation with HGS-HIRe.

Topic: (Laser) Spectroscopy of Stored and Trapped Ions

4th International FAIR School

The 4th International FAIR School, will take place in September in Castiglione della Pescaia in Italy. It is designed for young students with research interests in FAIR physics and is a good start to get an overview on what's happening at FAIR.

Local costs are covered, there is limited support for travel as well. The selection of students will be made early June, the deadline for application is May 31.

Seminar

0

HIC4FAIR Workshop Detectors and Accelerators

XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC)

0

35. Summer student program at GSI/FAIR 2015

For the summer student program 2015 we shall welcome 37 students from 17 countries in Europe and East Asia. During the eight weeks of the program each student is going to work on a small scientific project supervised by a tutor. In addition a lecture series will be held that presents the various research fields and applications at GSI. The program will be complemented by introductory soft skill courses.

24th International Symposium on Ion Atom Collisions (ISIAC 2015)

Institute´s Seminar

0

Semiannual Meeting of the HI Jena

0

Institute´s Seminar

0

European Summer School 2015: LIGHT! An introduction to modern Physics of Light

39th International conference on Vacuum Ultraviolet and X-ray Physics, VUVX2016

Institute´s Seminar

0

RS-APS Seminar

0

Seminar

0

Institute´s Seminar

0

RS-APS Seminar

We present a demonstration of the plasma lensing effect measured with an all-optical two-stage setup at the JETI laser system in Jena, Germany: In the first stage electrons are accelerated via laser wake field acceleration. This electron bunch was then focused by a second stage without any external fields applied. To our knowledge, this is the first experiment showing plasma lensing with LWFA accelerated electrons and a passive focusing stage, i.e. where the bunch self-focuses inside the focusing plasma stage.

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

In collisions of relativistic nuclei of gold (the RHIC collider) or lead (the LHC collider) electric and magnetic fields may exceed by several orders of magnitude the critical Schwinger field, but these fields act during a very short time. In this report I present a small review of our papers related to electromagnetic processes at the RHIC and LHC colliders. It includes such topics as: Strong-field effects in the lepton pair production; Large contribution of the virtual Delbrueck scattering into nuclear bremsstrahlung; Production of bound-free e⁺e^- pairs.

9th International Symposium on Swift Heavy Ions in Matter

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

Novel Light Sources from Laser-Plasma Interactions

The last decade has witnessed an explosion of activity in the development of novel radiation sources based on laser-plasma interactions (LPI), fueled by the wide availability of high-power lasers, with many promising applications. This workshop aims to bring together theorists and experimentalists working across a wide range of topics, including:

• Attosecond pulse sources from LPI
• X-ray and X-FEL sources from LPI
• Pump-probe experiments and applications of LPI sources
• Filamentation and THz generation
• γ-ray sources and QED processes
• Parametric amplification of short pulses
• Thomson and Compton sources

Kickoff meeting Matter and Technologies

36. Extreme Atomic Systems conference

Modern Atomic Physics witnesses a fast progress towards extreme conditions, in the ultracold and the ultrafast.
To explore these new parameter regimes is the common scheme of this atomic physics meeting.

Recent topics, defined by the participants, include:

• dynamics of atoms, molecules and clusters under light from new sources (XFEL sources and attosecond pulses)
• coherent diffraction imaging
• QED and relativistic effects
• ultracold complex atomic dynamics
• ultracold Rydberg interactions
• entanglement of ions and electrons or light and matter
• technological developments and new measurement tools

Institute´s Seminar

0

Semiannual Meeting of the HI Jena

All members of HI Jena are cordially invited to participate in the 8th semiannual palaver of the Helmholtz Institute Jena. Each research group will contribute with a few talks to present their current activities. After several presentations we will continue the discussions in an informal atmosphere at our main building at Fröbelstieg 3.

To facilitate planning, please let us know if you will be participating.

Institute´s Seminar

0

Institute´s Seminar

The locally constant field approximation (LFCA) is commonly used to calculate the nonperturbative pair production probability in electromagnetic fields.

In certain classes of fields, for example longitudinal electric fields depending on lightfront time, the LCFA is known to be exact. Using the worldline description of the effective action, we show that the reason for this is closely tied to the zero-mode problem of lightfront quantisation, and the so-called “triviality” of the lightfront vacuum.

2015 European XFEL Users´ Meeting and Satellite Meetings

The European XFEL Users’ Meeting is an annual opportunity to strengthen the interaction between the European XFEL project and the scientific user community. The scope of this meeting includes:

• Progress and current status of the European XFEL
• Instrument design developments and advances
• Selected science applications
• Current developments in the field of XFEL facilities
• Satellite Meetings and Workshops

35th International Workshop on High Energy Density Physics with Intense Ion and Laser Beams

The workshop will again provide an international forum to discuss high energy density physics including fundamental science, intense laser and particle beams interaction with matter and inertial confinement fusion. Following the tradition of the “Hirschegg Workshops”, the special atmosphere and schedule will leave enough time for discussions among participants.

Institute´s Seminar

0

Physics with Trapped Charged Particles 2015

Institute´s Seminar

0

RS-APS Seminar

Using a fast ion beam, we investigate the multi-electron strong-field ionization dynamics of atomic ions, in particular in elliptically polarized pulsed laser fields. In contrast to linear polarization, for elliptically polarized many-cycle pulses, the final ion momentum distribution in single ionization provides direct and complete information on the ionizing field strength as well as the ionization time.

Furthermore, we are able to reconstruct the electron momenta from the ion momentum distributions after multiple ionization and, therefore, gain information on the ionization field strength as well as on the release times for subsequent ionization steps. The results are compared to predictions from classical Monte-Carlo simulations based on quasistatic ionization rates

In addition, the subtle effects of the Coulomb interaction on the electron trajectory lead to a tilt in the observed momentum distribution. These effects can be used to study the kinematics and the initial conditions of the electron following tunnel ionization.

Institute´s Seminar

Quantitative Fluorescence Spectrometry for Fundamental Investigations in Atoms, Molecules, and Clusters: Clusterfluorescence and Interatomic Coulombic Decay Processes

RS-APS Seminar

In the last decades, ultrafast lasers have seen an extraordinary power increase and enabled a plethora of applications. However, today it becomes more and more challenging to keep up with this pace since intrinsic physical limitations cannot be avoided anymore. A solution for this problem is spatially and/or temporally separated amplification and subsequent coherent addition of ultrashort pulses. Although this technique is not restricted to a particular laser architecture, it turns out that fiber amplifiers are perfect candidates due to their simple single-pass setups, which can be easily parallelized.

In this talk, recent developments and experiments in the field of coherent addition of ultrashort pulses are presented. The further scaling potential of this technique is discussed and a laser system design is presented that allows to combine, for the first time, TW peak powers and kW average powers.

Institute´s Seminar

This tutorial-talk presents an introduction to the interaction of light and matter on the attosecond timescale. My aim is to overview the theoretical description of ultra-short time-delays, and to relate these to the phase of extreme ultraviolet (XUV) light pulses and to the asymptotic phase-shifts of photoelectron wave packets. Special emphasis is laid on time-delay experiments, where attosecond XUV pulses are used to photoionize target atoms at well-defined times, followed by a probing process in real time by a phase-locked, infrared laser field. In this way, the laser field serves as a "clock" to monitor the ionization event, but the observable delays do not correspond directly to the delay associated with single-photon ionization. Instead, a significant part of the observed delay originates from a measurement induced process, which obscures the single-photon ionization dynamics. This phase-lag effect is traced back to a phase-shift of the above-threshold ionization transition matrix element, which we call the continuum--continuum phase.

It arises due to the laser-stimulated transitions between Coulomb continuum states. As we shall show here, these measurement-induced effects can be separated from the single-photon ionization process, using analytical expressions of universal character, so that eventually the attosecond time-delays in photoionization can be accessed. Finally, I will show results of atomic delay calculations performed using diagrammatic many-body perturbation theory.

RS-APS Seminar

Owing to the recent advances in heavy-ion accelerator facilities and in detection techniques, new possibilities arise to study the electronic structure of simple atomic systems in strong Coulomb fields. Relativistic, quantum electrodynamics, and even nuclear effects, which are difficult to isolate in neutral atoms, often become enhanced in high-Z, few-electron ions. In order to improve understanding of these fundamental interactions, a number of studies have been recently carried out on the characteristic photon emission from heavy ions. In this contribution, we present a theoretical study on angular properties of radiation decay of heavy atomic systems. Special attention is given to the question of how the hyperfine interaction of the nuclear magnetic moment with those of electrons affects the angular properties of the K-alpha emission for isotopes with non-zero nuclear spin. A quite sizable contribution of the hyperfine interaction upon the K-alpha angular emission is found for isotopes with nuclear spin I = ½. Furthermore, lifetime-induced effects on angular distribution and correlation of x-ray emissions from two-step radiative cascades with more than one intermediate resonance are also investigated respectively. It is found that the angular properties of emitted x-ray photons are very sensitive to small energy splitting of the intermediate resonances, which can be used to determine small energy differences.

Institute´s Seminar

0

Second Joint Lecture Week of RS-APS and HGS-HIRe

This lecture week will be organized by the HI-Jena in cooperation with HGS-HIRe.

Topic: X-ray spectroscopy as diagnostic tool in atomic and plasma physics

RS-APS Seminar

0

Institute´s Seminar

0

RS-APS Seminar

0

Institute´s Seminar

0

11th Topical Workshop of the SPARC Collaboration

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International Conference on Science and Technology for FAIR in Europe 2014

This international conference will be a joint scientific and technical meeting of all FAIR communities

• Atomic, Plasma and applied physics (APPA)
• Compressed baryonic matter (CBM)
• Nuclear physics (NUSTAR) and
• Hadron physics (PANDA)

9th International Conference on Nuclear Physics in Storage Rings (STORI´14)

The conference, which will be hosted by the GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany, is the 9th of its kind and follows the previous conferences held at Lund, St. Petersburg, Bernkastel-Kues, Bloomington, Uppsala, Jülich, Lanzhou and Frascati.

The purpose of the conference is to provide a forum for the international research community for the presentation and discussion of all aspects of nuclear physics at storage rings and related fields.
In this spirit the conference will cover the following topics:

• Nuclear structure and astrophysics
• In-ring nuclear reactions
• Hadron spectroscopy and sub-nucleonic degrees of freedom
• Antiproton-nucleus interactions
• Stored radioactive beams
• Fundamental symmetries and interactions
• Elementary atomic processes explored with cooled few-electron ions
• Nuclear properties by atomic physics techniques
• Beam-cooling, manipulation and diagnostics
• Targets and detectors
• Ion traps and electrostatic rings
• Future facilities

The scientific program will consist of invited talks, contributed talks and a poster session. Besides the experts in the field we encourage in particular young scientists to join the conference and to present their results.

The conference will be held at the “Schloss Rheinfels” Castle in Sankt Goar, Germany. Sankt Goar is a picturesque little town located on the Rhine river, about halfway between Köln and Mainz, close to the famous “Loreley”. It is located within the UNESCO cultural heritage site “Mittleres Rheintal”. The conference venue, Schloss Rheinfels, is situated above Sankt Goar, providing spectacular views of the valley of the Rhine river.

FAIRNESS2014 - 3rd International Workshop for young scientists with research interests focused on physics at FAIR

The workshop is designed to bring together excellent international young scientists with research interests focused on physics at FAIR. The topics of the workshop cover a wide range of aspects in both theoretical developments and current experimental status, concentrated around the four scientific pillars of FAIR.

We will have exciting and interdisciplinary discussions along these key topics:

• Physics of hot and dense nuclear matter, QCD phase transitions and critical point
• Nuclear structure, astrophysics and reactions
• Hadron Spectroscopy, Hadrons in matter and Hypernuclei
• Special emphasis is put on the experiments CBM, HADES, PANDA, NuSTAR, as well as NICA and the RHIC beam energy scan
• New developments in atomic and plasma physics

9th International Conference on Atomic and Molecular Data and Their Applications (ICAMDATA 2014)

ICAMDATA 2014 is continuing the series of international conferences to promote the use of atomic and molecular data in various fields of science and technology, and provides a forum for the interaction of data producers, database designers and compilers, and data users. The conference will focus on the following topics.

I. Applications of and needs for atomic and molecular data

• Astrophysics and atmospheric physics
• Magnetic and inertial fusion
• Laboratory and industrial plasmas
• Lighting science and technology
• Biomedicine and biophysics
• Combustion and environmental sciences and technology
• Surface physics, gaseous electronics, solid state spectroscopy, optoelectronics, etc.

II. Atomic and molecular data collections, assessment and dissemination

• Data collection and selection, critical evaluation, estimates of uncertainties
• Databases, data exchange and dissemination
• Data center activities, standardization of data formats

III. Experimental and theoretical atomic and molecular data generation

• Atomic and molecular structure and spectroscopy
• Electron collisions with atoms and molecules
• Heavy particle collisions
• Particle - surface interactions

17th International Conference on the Physics of Highly Charged Ions (HCI2014)

The field of highly charged ions has seen in the last years a promising evolution originating from bold progress in theory and significant advances in experimental techniques.

The Bariloche HCI2014 conference aims at bringing together experimentalists and theoreticians from a wide range of fields:

• Fundamental Aspects, Structure and Spectroscopy
• Collisions with Electrons, Ions, Atoms and Molecules
• Interaction with Clusters, Surfaces and Solids
• Interactions with Photons and Plasmas
• Strong Field Processes
• Production, Experimental Developments and Applications

There will be no parallel sessions. Ample space for posters close to the main conference hall is available.

HGS-HIRe Summer Student Program 2014

Semiannual Palaver of the HI Jena

Talks:

• Rene Geithner: SQUID-based beam intensity measurements for accelerators
• Daniel Hengstler: maX mirco-calorimeter: high-resolution x-ray spectroscopy
• Felix Karbstein: Towards an all-optical probe of quantum vacuum nonlinearity
• Robert Riedel: High power femtosecond lasers – from research to market
• Sergey Rykovanov: Laser-plasma undulator based on wakefield excitation in a plasma channel
• Alexander Sävert: Advanced diagnostics of plasma wake fields
• Johannes Ullmann: Ground-state hyperfine splitting s in highly charged bismuth ions
• Michael Zürch: High resolution XUV imaging

Afterwards we will have a barbecue and plenty of time for discussions in the garden area behind the main building of HI Jena at Fröbelstieg 3.

New options for laser-driven short-wavelength photon sources

0

International conference of the European Group on Atomic Systems (EGAS)

Seminar

0

IOQ-Seminar

0

CLEO 2014 - Laser Science to Photonic Applications

International Conference on Precision Physics of Simple Atomic Systems (PSAS)

12th International Symposium on Electron Beam Ion Sources and Traps (EBIST´14)

The 12th International Symposium on Electron Beam Ion Sources and Traps, EBIST'14 will be held on May 18 - 21, 2014 at the National Superconducting Cyclotron Laboratory (NSCL) on the campus of Michigan State University (MSU) in the mid-western "Spartan" city of East Lansing, Michigan, USA.

NSCL is a rare-isotope accelerator facility conducting advanced research in fundamental nuclear science, nuclear astrophysics, accelerator physics, and related instrumentation technologies. The facility was recently selected by the Department of Energy (DOE) to establish the US national user Facility for Rare Isotope Beams (FRIB) for basic research with rare-isotope beams.

The EBIST symposia date back to 1977 and have taken place every 3 to 4 years to specifically discuss progress and exchange ideas in the design, development, applications of electron beam ion sources and traps, and the physics with highly charged ions. The topics to be covered in 2014 are:

• Progress and status of EBIS/T facilities,
• Atomic spectroscopy of highly charged ions,
• Charge-exchange and surface interaction with highly charged ions,
• Charge breeding of stable and radioactive isotopes,
• Nuclear physics with highly charged ions.

As in the past, the program of EBIST'14 will feature reviews and reports in a single session. We intend to organize a series of invited talks highlighting recent achievements and the future prospects in the above fields. In addition, contributions covering recent results will be selected for oral presentations. Furthermore, a small poster session is planned.

IOQ Institute´s Seminar

0

IOQ Institute´s Seminar

0

EMMI Workshop on "X-Ray Scattering on High Energy Density Plasmas – Status and Future Developments"

Topical Workshop of the FLAIR Collaboration

The workshop is jointly organized by the Max-Planck-Institut für Kernphysik MPIK Heidelberg, the GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, the Johannes Gutenberg-Universität, Mainz, and the Stefan-Meyer-Institut für Subatomare Physik, Vienna.

The Facility for Low-Energy Antiproton and Ion Research (FLAIR) Collaboration has been formed within the new international Facility for Antiproton and Ion Research (FAIR) at GSI, Darmstadt, Germany, and makes use of the beams of antiprotons and highly-charged ions from NESR to further decelerate and cool them in two storage rings (LSR and USR) and a universal trap facility HITRAP. Antiprotons will be provided in both slow and fast extraction with energies down to the keV-range. The anticipated beam intensities will be significantly larger than currently available reaching unprecedented phase space densities that enable many new experiments. The facility will be also used with highly charged ions, leading to a strong overlap with the SPARC collaboration.

The workshop program will concentrate on the following topics:

• Experiments with antiprotons and antihydrogen
• Highly charged ions in traps and rings for spectroscopy
• Interactions of low-energy highly charged ions and antiprotons with composite and solid targets
• Nuclear and particle physics with antiprotons
• Heavy-ion experiments, ion surface interactions, collision dynamics
• X-ray spectroscopy of antiprotonic atoms
• New instrumentation and facilities

In order to allow the attendance of all sessions, no parallel sessions will be held.

IOQ-Seminar

Laser pulses with very short duration and ultra-high peak power can today be efficiently produced with compact lasers. When such pulses are focused, extreme optical intensities are obtained. In their interaction with matter a wide range of exciting phenomena appears and novel fields of investigations and applications become possible. The lecture will concentrate on compact electron and ion acceleration, and some of their potential applications. Examples of results obtained within these areas at the Lund Laser Centre will be presented.

Semiannual Palaver of the HI-Jena

All members of the HI-Jena are cordially invited to participate in the 6th semiannual palalver of the Helmholtz Institute Jena. Each research group will contribute with a few talks to present their currentactivities. After several presentations we will continue the discussions in an informal atmosphere at our main building at Fröbelstieg 3.

Institutsseminar IOQ

0

Semiannual Palaver of the HI Jena

0

Memorial colloquium for Prof. Dr. Paul Kienle

Memorial colloquium for Prof. Dr. Paul Kienle, Scientific Director of GSI from 1984 to 1992, who passed away in January 2013.

Festkolloquium:

• Der SIS/ESR-Beschleunigerkomplex: Paul Kienles neue Wege für die Kernphysik - Volker Metag, University Giessen

• Der Experimentierspeicherring ESR: Paul Kienles großartiges Geschenk für die Atomphysik - Thomas Stöhlker, University Jena and Helmholtz-Institut Jena

35. Extreme Atomic Systems (EAS) Conference

Modern Atomic Physics witnesses a fast progress towards extreme conditions, in the ultracold and the ultrafast. To explore these new parameter regimes is the common scheme of this atomic physics meeting.

Each participant can give a talk of up to 20 minutes, time for discussing is provided. Recent topics, defined by the participants, include:

• dynamics of atoms, molecules and clusters under light from new sources (XFEL sources and attosecond pulses)
• coherent diffraction imaging
• QED and relativistic effects
• ultracold complex atomic dynamics
• ultracold Rydberg interactions
• entanglement of ions and electrons or light and matter
• technological developments and new measurement tools
• and much more

IOQ-Seminar

“Imaging Laser
Propagation Phenomena”

Dr. Hartmut Schröder

Max-Planck-Institut für Quantenoptik,
Hans-Kopfermann-Str. 1, 85748
Garching, Germany

Imaging, either with a CCD camera or with an ion microscope, is a powerful approach to precisely measure and to conceive laser induced phenomena, along and transverse to the direction of laser propagation. Based on this method I discuss the origin and the account of small-scale filamentation, present a simple technique to characterize few cycle pulses in the visible, and discuss ionization based perspectives to determine the energy, the focusability and the length of XUV pulses.

34th International Workshop on Physics of High Energy Density in Matter

The workshop will provide an international forum to discuss high energy density physics including fundamental science, intense laser and particle beams interaction with matter and inertial confinement fusion. Following the tradition of the “Hirschegg Workshops”, the special atmosphere and schedule will leave enough time for discussions among participants. The conference organisation does especially encourage the participation of young researchers and students.

The 2014 meeting starts on Sunday, January 26th (arrival and registration starting at 4 p.m). Again, as in the recent years, the scientific program will be conducted at the Waldemar-Petersen-Haus from Monday morning until Friday noon. Friday, January 31st, is the departure day. Due to the size of the conference room at Waldemar-Petersen-Haus, participation is limited to about 100 participants.

We encourage contributions on recent achievements in the following subjects:

• Properties of high energy density matter created by intense ion beams and lasers (EOS, phase transitions in dense plasmas, transport, and relaxation)
• Beam-plasma interactions (lasers, ion beams, pulsed power)
• Particle acceleration and generation of intense beams
• Ultrahigh field phenomena
• Diagnostic methods for high energy density matter
• Accelerator issues of intense beams
• Inertial fusion including fast ignition (NIF, HiPER, heavy ion fusion)
• Hydrodynamic simulations and instabilities

IOQ Seminar

"Ultrafast coherent control of electron dynamics"
Matthias Wollenhaupt
Carl von Ossietzky Universität Oldenburg, Carl-von-Ossietzky-Straße 9-11,26129 Oldenburg, Germany

The ability to generate ultrashort laser pulses of controllable shape with sub-attosecond precision has made it possible to precisely manipulate the electron dynamics of quantum systems.

Recently, we have developed a tomographic reconstruction method to directly measure three-dimensional photoelectron angular distributions resulting from REMPI in a Velocity Map Imaging (VMI) set-up. On atoms we have demonstrated the creation of designer electron wave packets using polarization shaped laser pulses [1].

In another experiment, we show how precision pulse shaping is used to manipulate the coupled electron and nuclear dynamics in order to address different bound electronic target states in a molecule. In our two-color energy resolved photoelectron spectroscopy experiment an intense IR-pulse, the phase of which is tailored to the electronic wave packet oscillation, guides the system towards a preselected target channel [2].

Finally, a femtosecond laser based approach to chiral recognition of randomly oriented molecules in the gas phase enabling implementations in analytics is presented. PAD resulting from REMPI of camphor and fenchone molecules are studied in order to investigate the Circular Dichroism in the photo-ionization of chiral molecules.  The observed circular dichroism effect using left- and right-handed circularly polarized femtosecond laser pulses is in the ± ten percent regime [3]

References

[1] M. Wollenhaupt, C. Lux, M. Krug and T. Baumert, Tomographic Reconstruction of Designer Free-Electron Wave Packets, Chem. Phys. Chem., 14, 1341-1349 (2013).

[2] T. Bayer, H. Braun, C. Sarpe, R. Siemering, P. von den Hoff, R. de Vivie-Riedle, T. Baumert and M. Wollenhaupt, Charge oscillation controlled molecular excitation, Phys. Rev. Lett., 110, 123003 (2013).

[3] C. Lux, M. Wollenhaupt, T. Bolze, Q. Liang, J. Köhler, C. Sarpe and T. Baumert, Circular Dichroism in the Photoelectron Angular Distributions of Camphor and Fenchone from Multiphoton Ionization with Femtosecond Laser Pulses, Angew. Chem. Int. Ed., 51, 5001-5005 (2012).

Antrittsvorlesung

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Inaugural Lecture

0

IOQ Seminar

0

APS Seminar

Stimulated Raman Backscattering (SRBS) is a promising method to circumvent intensity limitations in laser compressors. The process requires a strong fundamental pump and a red shifted seed in the order of at least 50nm. Conventional red shifting concepts rely on the use of nonlinear crystals like Ba(NO3)2 with low relative efficiencies and low resulting energy levels in the range of a few µJ.

We present a novel method to generate intense tunable red shifted laser radiation in the mJ range. This will enable us to study directly the nonlinear conversion part of SRBS which is expected to result in significantly higher conversion efficiencies.

IOQ Seminar

0

Colloquium of the Physics Faculty

0

Institute Seminar

Over the last decade laser particle acceleration has made such progress that first applications in special fields can be envisioned. Prominent examples are radiation therapy with laser accelerated ion beams as well as the generation of pulsed X-ray sources.

In this presentation the status of the joint activities of the Dresden groups at HZDR running the high power laser Draco and at Oncoray, the national center for radiation research in oncology, will be discussed. Emphasis will be given to the energy scaling of proton bunches accelerated in the TNSA regime with and during ultra-short pulses, potential instabilities in the process, methods for online monitoring, and to the status of the ongoing upgrade of Draco to PW power level. This topic will be complemented by a presentation of the recently achieved results on X-ray generation via Thomson back-scattering.

Habilitation Lecture

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Institute Seminar

0

Saturday´s Public Lecture

0

IOQ Seminar

0

APS Seminar

0

Ideas 2020 - A Tour of Tomorrow´s World

The exhibition of the Helmholtz Association “Ideas 2020 – A Tour of Tomorrow’s World” is based on an innovative, interactive concept that aims to make the fascinating complexity and diversity of today’s scientific research accessible to the public. It highlights some of the major scientific research projects being carried out in Germany, in line with the aims and priorities set out in the High-Tech‐Strategy for Germany, the German government’s concept for national research and innovation policy.

Institute Seminar

The discovery of 20 years ago, that light beams can be endowed with a phase singularity or vortex, which carries orbital angular momentum, in addition to the spin of circular polarization, sparked a lively research activity for finding applications of optical momentum in micro-manipulation and communication. Today, the orbital part of the angular momentum of light is used for enhancing the channel capacity of classical communication channels, providing a high-dimensional state space for quantum communication and turning and rotating microscopic particles. A few years ago, it was found that the techniques to generate light beams with orbital angular momentum can also be used to create electron vortex beams, bringing the concepts of optical manipulation into a new regime of spatial dimension. In my talk I will review the concepts of angular momentum for both light and electron beams, present experimental techniques for generation and measurement, and discuss the experimental and theoretical challenges in utilising the angular momentum of light and matter waves.

10th Topical Workshop of the SPARC Collaboration

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HGS-HIRe Graduate Days 2013

0

APS Seminar

Defense Presentation of Master’s Thesis ’Energy- and Polarization-Resolved Analysis of Hard X-Ray Radiation at High-Intensity Laser Systems”

Institute´s Seminar

0

Habilitation Lecture

0

Joint Helmholtz Rosatom Lecture Week on FAIR Physics

DoKDoK 2013 - Doctoral Students Conference on Optics

0

EMMI Workshop on "High energy density plasma diagnostics at FAIR: Novel laser based photon and particle sources"

The workshop focuses on the development of novel diagnostic methods and tools for investigations of High Energy Density Matter (HEDM).

At the Facility for Antiproton and Ion Research (FAIR), the HEDM-states will be created by intense heavy ion beams, which are capable to heat large-volume targets of any elements uniformly and quasi-isochorically. After this, an isentropic expansion in 1D planar geometry will give an opportunity for investigations of the Equation-of-state in unexplored regions of phase transitions, transport and radiation properties of HEDM.

In other experiments relevant to planetary science, multi-shock compression of e.g. cryogenic Hydrogen, inserted in a thick high Z tamper, heated by a rotating Uranium beam, will be investigated. In order to observe different phases of shock dynamics using imaging techniques, pulsed high energy radiation, particle sources an appropriate diagnostic methods are required. In this context imaging applications of laser generated beams of protons, electrons, neutrons and gamma-rays will be discussed.

Key Topics

1. Proton generation by interaction of relativistic laser pulses with matter
2. Electron acceleration in relativistic laser-plasmas
3. A bright neutron source driven by short pulse lasers and applications
4. Advanced x-ray and γ-ray sources and applications
5. Nuclear physics in laser-matter interactions
6. High energy flux x-ray and γ-ray detectors and optics

ASP guest professor lecture

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