Newsletter February 2020
Dear colleagues and friends of the HI-Jena,
welcome to the February 2020 issue of our institute newsletter.
Below you find informations and news about recent activities of the HI Jena.
Kind Regards,
Helmholtz Institute Jena
First high-precision polarimetry experiment at the European XFEL
The quest for the purest linear polarization of X-rays originated from the idea of detecting the birefringence of vacuum – a prediction of quantum electrodynamics [1]. The feasibility of this experiment was underpinned by the realization of a polarization purity of about 10-10 by scientists from the Friedrich Schiller University and the Helmholtz Institute Jena at the synchrotron source ESRF in Grenoble a few years ago [2]. Recently, it turned out that the polarization purity of 10-10 is not a limitation set by the polarizers, but rather by the source [3]. More precisely, the limiting factor is the divergence, which is typically on the order of 10µrad for third-generation synchrotron sources. On the other hand, novel X-ray sources like the European XFEL or the upgrade of the ESRF to a diffraction-limited storage ring provide highly collimated beams and, thus, should enable polarization purities much better than 10-10.
A significant step towards the purest linear polarization was set recently during the first polarimetry experiment at the HED instrument of the European XFEL. Even though it was one of the first experiments at this instrument, the polarimeter showed an outstanding performance. The high polarization purity realized led to a complete suppression of the incoming XFEL photons. These results will be appropriately published soon and are promising for the ambitious goal of detecting the birefringence of vacuum in the next years.
News and Announcements
Helmholtz Institute Jena supports Physics & Astronomy Day of Friedrich Schiller University Jena
Update: Owing to the ongoing developments regarding the coronavirus, the event has been canceled.
The Helmholtz Institute Jena supports this year’s Day of Physics and Astronomy, which the Faculty of Physics and Astronomy of the University of Jena is organizing for school classes, prospective students and the general public on March 27, 2020.
A working group around Dr. Volker Tympel and scientists from the Institute of Solid State Physics and the German Weather Service will launch a stratospheric balloon. Until reaching the planned altitude of about 100,000 ft, temperature, humidity and air pressure as well as the intensity of ionizing radiation will be continuously recorded and transmitted live to Lecture Hall 1 at Max-Wien-Platz. After an introductory lecture by Dr. Roman Forker at 11:45 a.m., interested visitors can follow the experiment until around 2 p.m.
Further information about the Day of Physics and Astronomy can be found on the website of the Faculty and in the programme leaflet (Geman only).
Upcoming events
Eigth Joint Lecture Week of RS-APS and HGS-HIRe
Online
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
Please find the detailed agenda here.
Recently finished theses
Investigation of Atomic Nuclei via Electronic Processes
R. A. Müller
(2019)
Recent publications
Generation of coherent broadband high photon flux continua in the XUV with a sub-two-cycle fiber laser
R. Klas, W. Eschen, A. Kirsche, J. Rothhardt, and J. Limpert
Opt. Express 28, 6188 (2020)
doi: 10.1364/OE.28.006188
Towards a determination of absolute cross sections for projectile excitation of hydrogen‐like uranium in collisions with neutral atoms
G. Weber, A. Gumberidze, M. Herdrich, R. Märtin, U. Spillmann, A. Surzhykov, D. Thorn, S. Trotsenko, N. Petridis, C. Fontes, and Th. Stöhlker
X-Ray Spec. 49, 239 (2020)
doi: 10.1002/xrs.3129
Towards experiments with highly charged ions at HESR
R. Sánchez, A. Braeuning-Demian, J. Glorius, S. Hagmann, P.-M. Hillenbrand, A. Kalinin, T. Köhler, Y. A. Litvinov, N. Petridis, S. Sanjari, U. Spillmann, and T. Stöhlker
X-Ray Spec. 49, 33 (2020)
doi: 10.1002/xrs.3041
A magnetic spectrometer for electron‐positron pair spectroscopy in storage rings
S. Hagmann, P. Hillenbrand, Y. A. Litvinov, U. Spillmann, and T. Stöhlker
X-Ray Spec. 49, 115 (2020)
doi: 10.1002/xrs.3065
High-resolution wavelength-dispersive spectroscopy of K-shell transitions in hydrogen-like gold
T. Gassner, A. Gumberidze, M. Trassinelli, R. Heß, U. Spillmann, D. Banaś, K.-H. Blumenhagen, F. Bosch, C. Brandau, W. Chen, C. Dimopoulou, E. Förster, R. Grisenti, S. Hagmann, P.-M. Hillenbrand, P. Indelicato, P. Jagodzinski, T. Kämpfer, M. Lestinsky, D. Liesen, Y. Litvinov, R. Lötzsch, B. Manil, R. Märtin, F. Nolden, N. Petridis, M. Sanjari, K. Schulze, M. Schwemlein, A. Simionovici, M. Steck, Th. Stöhlker, C. Szabo, S. Trotsenko, I. Uschmann, G. Weber, O. Wehrhan, N. Winckler, D. Winters, N. Winters, E. Ziegler, and H. Beyer
X-Ray Spec. 49, 204 (2020)
doi: 10.1002/xrs.3098
Probing Vacuum Polarization Effects with High-Intensity Lasers
F. Karbstein
Particles 3, 39 (2020)
doi: 10.3390/particles3010005
Ultrafast Plasma Imaging
M. C. Kaluza
Springer Proc. Phys. 231, 165 (2019)
https://www.springer.com/gp/book/9783030258498
Implementation of a phase plate for the generation of homogeneous focal-spot intensity distributions at the high-energy short-pulse laser facility PHELIX
V. Bagnoud, J. Hornung, M. Afshari, U. Eisenbarth, C. Brabetz, Z. Major, and B. Zielbauer
HPLaser 7, E62 (2019)
doi: 10.1017/hpl.2019.48
Near L-edge Single and Multiple Photoionization of Triply Charged Iron Ions
R. Beerwerth, T. Buhr, A. Perry-Sassmannshausen, S. O. Stock, S. Bari, K. Holste, A. L. D. Kilcoyne, S. Reinwardt, S. Ricz, D. W. Savin, K. Schubert, M. Martins, A. Müller, S. Fritzsche, and S. Schippers
Astrophys. J. 887, 189 (2019)
doi: 10.3847/1538-4357/ab5118
Simulation of the multiphase configuration and phase transitions with quantum walks utilizing a step-dependent coin
S. Panahiyan, and S. Fritzsche
Phys. Rev. A 100, 062115 (2019)
doi: 10.1103/PhysRevA.100.062115
23 mJ high-power fiber CPA system using electro-optically controlled divided-pulse amplification
H. Stark, J. Buldt, M. Müller, A. Klenke, A. Tünnermann, and J. Limpert
Opt. Lett. 44, 5529 (2019)
doi: 10.1364/OL.44.005529
A study on the effects and visibility of low-order aberrations on laser beams with orbital angular momentum
J. B. Ohland, U. Eisenbarth, M. Roth, and V. Bagnoud
Appl. Phys. B 32, 56 (2019)
doi: 10.1007/s00340-019-7317-6
Generation of three-cycle multi-millijoule laser pulses at 318 W average power
T. Nagy, S. Hädrich, P. Simon, A. Blumenstein, N. Walther, R. Klas, J. Buldt, H. Stark, S. Breitkopf, P. J\'ojárt, I. Seres, Z. Várallyay, T. Eidam, and J. Limpert
Optica 6, 1423 (2019)
doi: 10.1364/OPTICA.6.001423
Toward high contrast and high-resolution microscopic ghost imaging
Z. Sun, F. Tuitje, and C. Spielmann
Opt. Express 27, 33652 (2019)
doi: 10.1364/OE.27.033652
Modification of multipole transitions by twisted light
S.-L. Schulz, S. Fritzsche, R. A. Müller, and A. Surzhykov
Phys. Rev. A 100, 043416 (2019)
doi: 10.1103/PhysRevA.100.043416
Picosecond contrast degradation by surface imperfections in chirped-pulse-amplification stretchers
V. A. Schanz, M. Roth, and V. Bagnoud
J. Opt. Soc. Am. A 36, 1735 (2019)
doi: 10.1364/JOSAA.36.001735
Ab initio QED Treatment of the Two-Photon Annihilation of Positrons with Bound Electrons
V. A. Zaytsev, A. V. Volotka, D. Yu, S. Fritzsche, X. Ma, H. Hu, and V. M. Shabaev
Phys. Rev. Lett. 123, 093401 (2019)
doi: 10.1103/PhysRevLett.123.093401
Isotope shifts of the 1s²2s2p (J)–1s²2s²$ transition energies in Be-like thorium and uranium
N. A. Zubova, I. S. Anisimova, M. Y. Kaygorodov, Y. S. Kozhedub, A. V. Malyshev, V. M. Shabaev, I. I. Tupitsyn, G. Plunien, C. Brandau, and T. Stöhlker
J. Phys. B 52, 185001 (2019)
doi: 10.1088/1361-6455/ab3148
Scattering of twisted light from a crystal
A. A. Peshkov, S. Fritzsche, and A. Surzhykov
Phys. Scripta 94, 105402 (2019)
doi: 10.1088/1402-4896/ab1c74
A fresh computational approach to atomic structures, processes and cascades
S. Fritzsche
Comput. Phys. Commun. 240, 1 (2019)
https://doi.org/10.1016/j.cpc.2019.01.012
Flexible x-ray source with tunable polarization and orbital angular momentum from Hermite-Gaussian laser modes driven plasma channel wakefield
B. Lei, T. Teter, J. W. Wang, V. Yu. Kharin, C. B. Schroeder, M. Zepf, and S. G. Rykovanov
Phys. Rev. Accel. Beams 22, 071302 (2019)
doi: 10.1103/PhysRevAccelBeams.22.071302
Fluorescence polarization as a precise tool for understanding nonsequential many-photon ionization
J. Hofbrucker, A. V. Volotka, and S. Fritzsche
Phys. Rev. A 100, 011401 (2019)
doi: 10.1103/PhysRevA.100.011401
High-order implicit particle-in-cell method for plasma simulations at solid densities
D. Wu, W. Yu, S. Fritzsche, and X. T. He
Phys. Rev. E 100, 013207 (2019)
doi: 10.1103/PhysRevE.100.013207
Particle-in-cell simulation of transport and energy deposition of intense proton beams in solid-state materials
D. Wu, W. Yu, Y. T. Zhao, D. H. H. Hoffmann, S. Fritzsche, and X. T. He
Phys. Rev. E 100, 013208 (2019)
doi: 10.1103/PhysRevE.100.013208
QED radiative corrections to the ²P₁/₂-²P₃/₂ fine structure in fluorinelike ions
A. V. Volotka, M. Bilal, R. Beerwerth, X. Ma, Th. Stöhlker, and S. Fritzsche
Phys. Rev. A 100, 010502 (2019)
doi: 10.1103/PhysRevA.100.010502
Differential cross sections for ionization of atomic hydrogen by antiprotons
A. Bondarev, Y. Kozhedub, I. Tupitsyn, V. Shabaev, G. Plunien, and Th. Stöhlker
Hyperfine Interact. 240, 60 (2019)
doi: 10.1007/s10751-019-1562-2
Formation of relativistic electromagnetic solitons in over-dense plasmas
D. Wu, W. Yu, S. Fritzsche, C. Y. Zheng, and X. T. He
Phys. Plasmas 26, 063107 (2019)
doi: 10.1063/1.5109799
High-precision calculations of the 1s²2s2p ¹P₁->1s²2s² ¹S₀ spin-allowed E1 transition in C iii
M. Bilal, A. V. Volotka, R. Beerwerth, J. Rothhardt, V. Hilbert, and S. Fritzsche
Phys. Rev. A 99, 062511 (2019)
doi: 10.1103/PhysRevA.99.062511
Relative amplitude noise transfer function of an Yb3+-doped fiber amplifier chain
P. Gierschke, C. Jauregui, T. Gottschall, and J. Limpert
Opt. Express 27, 17041 (2019)
doi: 10.1364/OE.27.017041
High dynamic range, large temporal domain laser pulse measurement
V. A. Schanz, C. Brabetz, D. J. Posor, D. Reemts, M. Roth, and V. Bagnoud
Appl. Phys. B 125, 61 (2019)
doi: 10.1007/s00340-019-7172-5
Watt-scale 50-MHz source of single-cycle waveform-stable pulses in the molecular fingerprint region
T. P. Butler, D. Gerz, C. Hofer, J. Xu, C. Gaida, T. Heuermann, M. Gebhardt, L. Vamos, W. Schweinberger, J. A. Gessner, T. Siefke, M. Heusinger, U. Zeitner, A. Apolonski, N. Karpowicz, J. Limpert, F. Krausz, and I. Pupeza
Opt. Lett. 44, 1730 (2019)
doi: 10.1364/OL.44.001730