Referierte Publikationen


Sobhy Kholaif, Cesar Jauregui, and Jens Limpert
Mitigation of transverse mode instability by heat-load modulation
Optics express, 31 (16) :26496 ( 2023)
Publisher: Optica
ISSN: 1094-4087
Danish Furekh Dar, Björn Minneker, and Stephan Fritzsche
Nondipole strong-field approximation for above-threshold ionization in a few-cycle pulse
Physical review / A, 107 (5) :053102 ( 2023)
Publisher: APS
ISSN: 2469-9926
Ziyao Wang, Tobias Heuermann, Martin Gebhardt, Mathias Lenski, Philipp Gierschke, Robert Klas, Jan Rothhardt, Cesar Jauregui, and Jens Limpert
Nonlinear pulse compression to sub-two-cycle, 1.3 mJ pulses at 1.9 μm wavelength with 132 W average power
Optics letters, 48 (10) :2647 ( 2023)
Publisher: OSA
ISSN: 0146-9592
Birger Nils Böning, and Stephan Fritzsche
Partial-wave representation of the strong-field approximation. II. Coulomb asymmetry in the photoelectron angular distribution of many-electron atoms
Physical review / A, 107 (2) :023108 ( 2023)
Publisher: APS
ISSN: 2469-9926
K. Makur, B. Ramakrishna, S. Krishnamurthy, K. F. Kakolee, S. Kar, M. Cerchez, R. Prasad, K. Markey, M. N. Quinn, X. H. Yuan, J. S. Green, R. H. H. Scott, P. McKenna, J. Osterholz, O. Willi, P. A. Norreys, M. Borghesi, and M. Zepf
Probing bulk electron temperature via x-ray emission in a solid density plasma
Plasma physics and controlled fusion, 65 (4) :045005 ( 2023)
Publisher: IOP Publ.
ISSN: 0741-3335
Bernhard Hidding, Ralph Assmann, Michael Bussmann, David Campbell, Yen-Yu Chang, Sébastien Corde, Jurjen Couperus Cabadağ, Alexander Debus, Andreas Döpp, Max Gilljohann, J. Götzfried, F. Moritz Foerster, Florian Haberstroh, Fahim Habib, Thomas Heinemann, Dominik Hollatz, Arie Irman, Malte Kaluza, Stefan Karsch, Olena Kononenko, Alexander Knetsch, Thomas Kurz, Stephan Kuschel, Alexander Köhler, Alberto Martinez de la Ossa, Alastair Nutter, Richard Pausch, Gaurav Raj, Ulrich Schramm, Susanne Schöbel, Andreas Seidel, Klaus Steiniger, Patrick Ufer, Mark Yeung, Omid Zarini, and Matt Zepf
Progress in Hybrid Plasma Wakefield Acceleration
Photonics, 10 (2) :99 ( 2023)
Publisher: MDPI
ISSN: 2304-6732
Lars Lötgering, Mengqi Du, Dirk Boonzajer Flaes, Tomas Aidukas, Felix Wechsler, Daniel Santiago Penagos Molina, Max Rose, Antonios Pelekanidis, Wilhelm Eschen, Jürgen Hess, Thomas Wilhein, Rainer Heintzmann, Jan Rothhardt, and Stefan Witte
PtyLab.m/py/jl: a cross-platform, open-source inverse modeling toolbox for conventional and Fourier ptychography
Optics express, 31 (9) :13763 ( 2023)
Publisher: OSA
ISSN: 1094-4087
Danish Furekh Dar, and Stephan Fritzsche
Pulse Cycle Dependent Nondipole Effects in Above-Threshold Ionization
Atoms, 11 (6) :97 ( 2023)
Publisher: MDPI
ISSN: 2218-2004
Henning Stark, Maximilian Benner, Joachim Buldt, Arno Klenke, and Jens Limpert
Pulses of 32 mJ and 158 fs at 20-kHz repetition rate from a spatiotemporally combined fiber laser system
Optics letters, 48 (11) :3007 ( 2023)
Publisher: OSA
ISSN: 0146-9592
Anna Maiorova, Stephan Fritzsche, Andrey Surzhykov, and Thomas Stöhlker
Radiative recombination of highly charged ions with polarized electrons
Physical review / A, 107 (4) :042814 ( 2023)
Publisher: APS
ISSN: 2469-9926
Stephan Fritzsche, Anna Maiorova, and Zhongwen Wu
Radiative Recombination Plasma Rate Coefficients for Multiply Charged Ions
Atoms, 11 (3) :50 ( 2023)
Publisher: MDPI
ISSN: 2218-2004
Binghui Zhu, and Thomas Stöhlker
Radiative Recombination Studies for Bare Lead Ions Interacting with Low-Energy Electrons
Atoms, 11 (1) :2 ( 2023)
Publisher: MDPI
ISSN: 2218-2004
C. Zepter, A. Seidel, M. Zepf, M. C. Kaluza, and A. Sävert
Role of spatiotemporal couplings in stimulated Raman side scattering
Physical review research, 5 (1) :L012023 ( 2023)
Publisher: APS
ISSN: 2643-1564
Guang Yang, Vinicius Silva Oliveira, Dominic Laumer, Christoph M. Heyl, Andrey Yachmenev, Ingmar Hartl, and Jochen Küpper
Self-broadening and self-shift in the $3v_2$ band of ammonia from mid-infrared-frequency-comb spectroscopy
Journal of molecular spectroscopy, 392 :111744 ( 2023)
Publisher: Academic Press
ISSN: 0022-2852
Richard Bernecker, Baghdasar Baghdasaryan, and Stephan Fritzsche
Spatial and temporal characteristics of spontaneous parametric down-conversion with varying focal planes of interacting beams
The European physical journal / D, 77 (9) :172 ( 2023)
Publisher: Springer
ISSN: 1434-6060
Elias Kueny, Anne-Laure Calendron, Sven Velten, Lars Bocklage, Franz X. Kärtner, and Ralf Röhlsberger
Spin-structured multilayer THz emitters by oblique incidence deposition
Journal of applied physics, 133 (3) :033903 ( 2023)
Publisher: American Inst. of Physics
ISSN: 0021-8979
Ruo Yu Zheng, Li Guang Jiao, Aihua Liu, Jia Ma, Henry E Montgomery Jr, Yew Kam Ho, and Stephan Fritzsche
Stability of the $2p^2$ $^3P^e$ state of two-electron atoms near to critical nuclear charge
Journal of physics / B, 56 (9) :095002 ( 2023)
Publisher: IOP Publ.
ISSN: 0022-3700
S. Kosugi, F. Koike, M. Iizawa, F. Hosseini, J. Martins, T. Marchenko, O. Travnikova, J. D. Bozek, K. Ito, Stephan Fritzsche, M. N. Piancastelli, M. Simon, and Y. Azuma
Strong configuration-interaction contributions to the angle-resolved $4_p$ photoelectron spectra of atomic xenon
Physical review / A, 107 (2) :022814 ( 2023)
Publisher: APS
ISSN: 2469-9926
Dominic Laumer, Haydar Sarper Salman, Yuxuan Ma, Kevin T. Zawilski, Peter G. Schunemann, Marcus Seidel, Christoph Heyl, and Ingmar Hartl
Sub-Hz relative linewidths from an interferometrically stabilized mid-infrared frequency comb
Optics letters, 48 (11) :3055 ( 2023)
Publisher: OSA
ISSN: 0146-9592
Kristian König, Stephan Fritzsche, Gaute Hagen, Jason D. Holt, Andrew Klose, Jeremy Lantis, Yuan Liu, Kei Minamisono, Takayuki Miyagi, Witold Nazarewicz, Thomas Papenbrock, Skyy V. Pineda, Robert Powel, and Paul-Gerhard Reinhard
Surprising Charge-Radius Kink in the Sc Isotopes at N = 20
Physical review letters, 131 (10) :102501 ( 2023)
Publisher: APS
ISSN: 0031-9007
F. Kröger, G. Weber, S. Allgeier, Z. Andelkovic, S. Bernitt, A. Borovik, L. Duval, A. Fleischmann, O. Forstner, M. Friedrich, J. Glorius, A. Gumberidze, C. Hahn, F. Herfurth, D. Hengstler, M. Herdrich, P.-M. Hillenbrand, A. Kalinin, M. Kiffer, M. Kubullek, P. Kuntz, M. Lestinsky, B. Löher, E. Menz, T. Over, N. Petridis, P. Pfäfflein, S. Ringleb, R. Sidhu, U. Spillmann, S. Trotsenko, A. Warczak, B. Zhu, C. Enss, and T. Stöhlker
Towards an Intrinsic Doppler Correction for X-ray Spectroscopy of Stored Ions at CRYRING@ESR
Atoms, 11 :1 (January 2023)
We report on a new experimental approach for the Doppler correction of X-rays emitted by heavy ions, using novel metallic magnetic calorimeter detectors which uniquely combine a high spectral resolution with a broad bandwidth acceptance. The measurement was carried out at the electron cooler of CRYRING@ESR at GSI, Darmstadt, Germany. The X-ray emission associated with the radiative recombination of cooler electrons and stored hydrogen-like uranium ions was investigated using two novel microcalorimeter detectors positioned under 0∘ and 180∘ with respect to the ion beam axis. This new experimental setup allowed the investigation of the region of the N, M → L transitions in helium-like uranium with a spectral resolution unmatched by previous studies using conventional semiconductor X-ray detectors. When assuming that the rest-frame energy of at least a few of the recorded transitions is well-known from theory or experiments, a precise measurement of the Doppler shifted line positions in the laboratory system can be used to determine the ion beam velocity using only spectral information. The spectral resolution achievable with microcalorimeter detectors should, for the first time, allow intrinsic Doppler correction to be performed for the precision X-ray spectroscopy of stored heavy ions. A comparison with data from a previous experiment at the ESR electron cooler, as well as the conventional method of conducting Doppler correction using electron cooler parameters, will be discussed.
H. N. Gopalakrishna, R. Baruah, C. Hünecke, V. Korolev, M. Thümmler, A. Croy, M. Richter, F. Yahyaei, R. Hollinger, V. Shumakova, I. Uschmann, H. Marschner, M. Zürch, C. Reichardt, A. Undisz, J. Dellith, A. Pugžlys, A. Baltuska, C. Spielmann, U. Peschel, S. Gräfe, M. Wächtler, and D. Kartashov
Tracing spatial confinement in semiconductor quantum dots by high-order harmonic generation
Physical review research, 5 (1) :013128 ( 2023)
Publisher: APS
ISSN: 2643-1564
P. Balla, H. Tuennermann, S. Salman, M. Fan, S. Ališauskas, I. Hartl, and C. Heyl
Ultrafast serrodyne optical frequency translator
Nature Photonics, 17 :187 (December 2023)
The serrodyne principle enables an electromagnetic signal to be frequency shifted by applying a linear phase ramp in the time domain. This phenomenon has been exploited to frequency shift signals in the radiofrequency, microwave and optical regions of the electromagnetic spectrum over ranges of up to a few gigahertz, for example, to analyse the Doppler shift of radiofrequency signals for noise suppression and frequency stabilization. Here we employ this principle to shift the centre frequency of high-power femtosecond laser pulses over a range of several terahertz with the help of a nonlinear multi-pass cell. We demonstrate our method experimentally by shifting the central wavelength of a state-of-the-art 75 W frequency comb laser from 1,030 nm to 1,060 nm and to 1,000 nm. Furthermore, we experimentally show that this wavelength-shifting technique supports coherence characteristics at the few hertz-level while improving the temporal pulse quality. The technique is generally applicable to wide parameter ranges and different laser systems, enabling efficient wavelength conversion of high-power lasers to spectral regions beyond the gain bandwidth of available laser platforms.
Malte Christoph Kaluza
Unveiling the inner structure of electron pulses generated from a laser-wakefield accelerator
Light, 12 (1) :225 ( 2023)
Publisher: Nature Publishing Group
ISSN: 2047-7538
Wen Hao Xia, Zhi Ling Zhou, Li Guang Jiao, Aihua Liu, Henry E. Montgomery, Yew Kam Ho, and Stephan Fritzsche
Variational perturbation theory for dynamic polarizabilities and dispersion coefficients
Physical review / E, 108 (3) :035305 ( 2023)
Publisher: APS
ISSN: 2470-0045