Newsletter August 2016
Dear colleagues and friends of the HI Jena,
welcome to the summer issue of the newsletter of the HI Jena. Below you find the latest research news and announcements from our institute.
We wish you pleasant semester holidays and a nice and stimulating summer conference season.
Kind Regards,
Helmholtz Institute Jena
Precision spectroscopy of X-ray polaritons
When light interacts with matter, it may be deflected or absorbed, resulting in the excitation of atoms and molecules; but the interaction can also produce composite states of light and matter which are neither one thing nor the other, and therefore have a name of their own – polaritons. These hybrid particles have now been prepared and accurately measured for the first time in the field of hard X-rays by researchers of DESY, ESRF, University of Jena and Helmholtz Institute Jena [1]. The polaritons are created by the interaction of X-rays produced by the synchrotron ESRF with a periodic stack of alternating layers of different iron isotopes: the Mössbauer isotope iron-57 (57Fe) and the non-resonant, most commonly occurring isotope of iron 56Fe. Each layer was less than two nanometers thick. If the wavelength of the X-rays are tuned to the extremely narrow nuclear resonance of 57Fe at an energy of 14.4 keV, the multilayer system acts as a Bragg reflector. Classically, one would expect that the different dispersion relations of the Bragg reflection and the nuclear resonance overlap. However, strong coupling of the X-rays with the nuclei lead to an anti-crossing in the dispersion curve, which shows the presence of polaritons (see figure). This can also be regarded as a creation of two different resonances, which are separated by only 37.3 neV.
The precise measurement of these extremely small spectroscopic features was enabled by a high-purity X-ray polarimeter, which was developed in Jena. Depending on the magnetization of the sample, the photons scattered at the nuclei change their polarization. Thus, these photons can pass the polarimeter with polarizer and analyzer in crossed position, whereas the non-resonant, specular reflected photons are suppressed by about eight orders of magnitude. This leads to a separation of the signal from the background with a very high degree of sensitivity. The method already enabled the discovery of quantum optical effects in the past [2,3].
The preparation and measurement of polaritons in the X-ray range is an important step on the path to tailored radiation fields in the X-ray range. The simultaneous emission of many identical photons during the decay of nuclear polaritons could lead to extremely narrow-band, non-classical light sources in the X-ray range, and open the way for new applications in high-precision spectroscopy. At the same time, the experiment is a further step towards establishing quantum optics in the X-ray domain.
References:
News and Announcements
Guests of the institute
From 16.6. - 15.9. Dr. Jacinda Ginges (UNSW Sydney, Australia) is visiting the Theoretical Atomic Physics Group of the HI Jena to collaborate on QED effects in the hyperfine structure of selected alkali atoms.
Moreover, from 5.7. - 5.10.2016 MSc. Kungmin Ruan (Peking, China) is visiting the Theoretical Atomic Physics Group of the HI Jena to collaborate on entanglement in highly-charged ions.
Upcoming events
International Student Summer Programme on X-Ray and Neutron Science
Grenoble, France
The ESRF/ILL International Student Summer Programme on X-Ray and Neutron Science is aimed at undergraduate students. It will consist in a 4-week experimental project embedded in a research group of ESRF or ILL, together with a series of introductory lectures on the principles and applications of X-ray and neutron science (magnetism, materials science, soft matter, structural biology, imaging, etc.).
For more informations, see: http://www.esrf.fr/home/events/conferences/2016/summerschool-2016.html
18th International Conference on the Physics of Highly Charged Ions (HCI-2016)
Kielce, Poland
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.
The scope of the HCI-2016 as well as organization details can be found in attached 1st Announcement and the conference website: http://www.ujk.edu.pl/hci2016
SPARC Topical Workshop 2016
Krakow, Poland
The 13th SPARC Topical Workshop will take place between 16th and 20th 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
Workshop website: http://sparc2016.if.uj.edu.pl
Doctoral students conference on optics DoKDoK 2016
Oppurg
Like its previous successful editions, this year too DoKDoK 2016 (Germany's largest doctoral student conference on Optics and Photonics) promises a lot of exciting content - acclaimed keynote speakers, guest lectures from field experts, interaction with industry representatives, a forum for new doctoral students, and some insightful workshops at the Autumn School.
Website: www.asp.uni-jena.de/dokdok
Recently finished theses
Experimental studies on polarization correlations in hard x-ray Rayleigh scattering
K.-H. Blumenhagen
(2016)
https://www.db-thueringen.de/receive/dbt_mods_00030049
Cryogenic Current Comparators for Precise Ion Beam Current Measurements
F. Kurian
(2016)
http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/40638
Photonen- und Elektronen-Emission von relativistischen Schwerionen beim Durchgang durch Materie
M. O. Herdrich
(2016)
Recent publications
Intensity-sensitive and position-resolving cavity for heavy-ion storage rings
X. Chen, M. Sanjari, P. Hülsmann, Y. Litvinov, F. Nolden, J. Piotrowski, M. Steck, Th. Stöhlker, and P. Walker
Nucl. Instr. Meth. Phys. Res. A 826, 39 (2016)
http://dx.doi.org/10.1016/j.nima.2016.04.056
Probing vacuum birefringence using x-ray free electron and optical high-intensity lasers
F. Karbstein, and C. Sundqvist
Phys. Rev. D 94, 013004 (2016)
doi: 10.1103/PhysRevD.94.013004
Maximum Proton Energy above 85 MeV from the Relativistic Interaction of Laser Pulses with Micrometer Thick CH₂ Targets
F. Wagner, O. Deppert, C. Brabetz, P. Fiala, A. Kleinschmidt, P. Poth, V. A. Schanz, A. Tebartz, B. Zielbauer, M. Roth, T. Stöhlker, and V. Bagnoud
Phys. Rev. Lett. 116, 205002 (2016)
doi: 10.1103/PhysRevLett.116.205002
100 W average power femtosecond laser at 343 nm
J. Rothhardt, C. Rothhardt, M. Müller, A. Klenke, M. Kienel, S. Demmler, T. Elsmann, M. Rothhardt, J. Limpert, and A. Tünnermann
Opt. Lett. 41, 1885 (2016)
doi: 10.1364/OL.41.001885
Avalanche of stimulated forward scattering in high harmonic generation
C. Serrat, D. Roca, J. M. Budesca, J. Seres, E. Seres, B. Aurand, A. Hoffmann, S. Namba, T. Kuehl, and C. Spielmann
Opt. Express 24, 8028 (2016)
doi: 10.1364/OE.24.008028
Optimizing high-power Yb-doped fiber amplifier systems in the presence of transverse mode instabilities
C. Jauregui, H.-J. Otto, S. Breitkopf, J. Limpert, and A. Tünnermann
Opt. Express 24, 7879 (2016)
doi: 10.1364/OE.24.007879
Phase stabilization of spatiotemporally multiplexed ultrafast amplifiers
M. Mueller, M. Kienel, A. Klenke, T. Eidam, J. Limpert, and A. Tünnermann
Opt. Express 24, 7893 (2016)
doi: 10.1364/OE.24.007893
Strong asymmetry of the electron-loss-to-continuum cusp of multielectron U²⁸⁺ projectiles in near-relativistic collisions with gaseous targets
P.-M. Hillenbrand, S. Hagmann, J. M. Monti, R. D. Rivarola, K.-H. Blumenhagen, C. Brandau, W. Chen, R. D. DuBois, A. Gumberidze, D. L. Guo, M. Lestinsky, Yu. A. Litvinov, A. Müller, S. Schippers, U. Spillmann, S. Trotsenko, G. Weber, and Th. Stöhlker
Phys. Rev. A 93, 042709 (2016)
doi: 10.1103/PhysRevA.93.042709
White light generated by femtosecond optical vortex beams
P. Hansinger, G. Maleshkov, I. L. Garanovich, D. V. Skryabin, D. N. Neshev, A. Dreischuh, and G. G. Paulus
J. Opt. Soc. Am. B 33, 681 (2016)
doi: 10.1364/JOSAB.33.000681
Polarization response in extreme nonlinear optics: when can the semiclassical approach be used?
A. V. Bogatskaya, E. A. Volkova, V. Y. Kharin, and A. M. Popov
Laser Phys. Lett. 13, 045301 (2016)
http://stacks.iop.org/1612-202X/13/i=4/a=045301
Scalability of components for kW-level average power few-cycle lasers
S. Hädrich, J. Rothhardt, S. Demmler, M. Tschernajew, A. Hoffmann, M. Krebs, A. Liem, O. d. Vries, M. Plötner, S. Fabian, T. Schreiber, J. Limpert, and A. Tünnermann
Appl. Opt. 55, 1636 (2016)
doi: 10.1364/AO.55.001636
Simulations of the energy loss of ions at the stopping-power maximum in a laser-induced plasma
W. Cayzac, A. Frank, A. Ortner, V. Bagnoud, M. Basko, S. Bedacht, A. Blažević, O. Deppert, D. Gericke, L. Hallo, A. Knetsch, D. Kraus, G. Malka, K. Pépitone, G. Schaumann, T. Schlegel, D. Schumacher, An. Tauschwitz, J. Vorberger, F. Wagner, and M. Roth
J. Phys.: Conf. Ser. 688, 012009 (2016)
http://stacks.iop.org/1742-6596/688/i=1/a=012009
Caustic structures in x-ray Compton scattering off electrons driven by a short intense laser pulse
D. Seipt, A. Surzhykov, S. Fritzsche, and B. Kämpfer
New J. Phys. 18, 023044 (2016)
http://stacks.iop.org/1367-2630/18/i=2/a=023044
Worldline numerics for energy-momentum tensors in Casimir geometries
M. Schäfer, I. Huet, and H. Gies
J. Phys. A 49, 135402 (2016)
http://stacks.iop.org/1751-8121/49/i=13/a=135402
Crystalline ground states in Polyakov-loop extended Nambu-Jona-Lasinio models
J. Braun, F. Karbstein, S. Rechenberger, and D. Roscher
Phys. Rev. D 93, 014032 (2016)
doi: 10.1103/PhysRevD.93.014032
Calibration of BAS-TR image plate response to high energy (3-300 MeV) carbon ions
D. Doria, S. Kar, H. Ahmed, A. Alejo, J. Fernandez, M. Cerchez, R. J. Gray, F. Hanton, D. A. MacLellan, P. McKenna, Z. Najmudin, D. Neely, L. Romagnani, J. A. Ruiz, G. Sarri, C. Scullion, M. Streeter, M. Swantusch, O. Willi, M. Zepf, and M. Borghesi
Rev. Sci. Instrum. 86, 123302 (2015)
doi: 10.1063/1.4935582
Linear polarization of x-rays emitted in the decay of highly-charged ions via overlapping resonances
Z. W. Wu, A. Surzhykov, N. M. Kabachnik, C. Z. Dong, and S. Fritzsche
J. Phys.: Conf. Ser. 635, 012020 (2015)
http://stacks.iop.org/1742-6596/635/i=1/a=012020
Characterization and application of hard x-ray betatron radiation generated by relativistic electrons from a laser-wakefield accelerator
M. Schnell, A. Sävert, I. Uschmann, O. Jansen, M. C. Kaluza, and C. Spielmann
J. Plasma Phys. 81, 1 (2015)
doi: 10.1017/S0022377815000379
Engineering crystalline Au nanoparticles of anisotropic shape in epitaxially grown high-index SrTiO3
H. Bernhardt, R. Diener, P. Sungur, C. Katzer, G. Schmidl, U. Hübner, I. Uschmann, W. Fritzsche, and F. Schmidl
J. Mater. Sci. 50, 5562 (2015)
doi: 10.1007/s10853-015-9103-0
Extreme ultraviolet digital in-line holography using a tabletop source
M. Zürch, and C. Spielmann
Appl. Opt. 54, 5992 (2015)
doi: 10.1364/AO.54.005992
Parity nonconservation effect in the resonance elastic electron scattering on heavy He-like ions
V. A. Zaytsev, S. Tashenov, A. V. Maiorova, V. M. Shabaev, and T. Stöhlker
J. Phys. B 48, 165003 (2015)
http://stacks.iop.org/0953-4075/48/i=16/a=165003
Triple ionization of atomic Cd involving 4p⁻1 and 4s⁻1 inner-shell holes
J. Andersson, R. Beerwerth, P. Linusson, J. H. D. Eland, V. Zhaunerchyk, S. Fritzsche, and R. Feifel
Phys. Rev. A 92, 023414 (2015)
doi: 10.1103/PhysRevA.92.023414
Acousto-optic pulse picking scheme with carrier-frequency-to-pulse-repetition-rate synchronization
O. de Vries, T. Saule, M. Plötner, F. Lücking, T. Eidam, A. Hoffmann, A. Klenke, S. Hädrich, J. Limpert, S. Holzberger, T. Schreiber, R. Eberhardt, I. Pupeza, and A. Tünnermann
Opt. Express 23, 19586 (2015)
doi: 10.1364/OE.23.019586
Between atomic and nuclear physics: radioactive decays of highly-charged ions
D. Atanasov, K. Blaum, F. Bosch, C. Brandau, P. Bühler, X. Chen, I. Dillmann, T. Faestermann, B. Gao, H. Geissel, R. Gernhäuser, S. Hagmann, T. Izumikawa, P.-M. Hillenbrand, C. Kozhuharov, J. Kurcewicz, S. Litvinov, Y. Litvinov, X. Ma, G. Münzenberg, M. Najafi, F. Nolden, T. Ohtsubo, A. Ozawa, F. Ozturk, Z. Patyk, M. Reed, R. Reifarth, M. Sanjari, D. Schneider, M. Steck, T. Stöhlker, B. Sun, F. Suzaki, T. Suzuki, C. Trageser, X. Tu, T. Uesaka, P. Walker, M. Wang, H. Weick, N. Winckler, P. Woods, H. Xu, T. Yamaguchi, X. Yan, and Y. Zhang
J. Phys. B 48, 144024 (2015)
doi: 10.1088/0953-4075/48/14/144024
Calibration of time of flight detectors using laser-driven neutron source
S. R. Mirfayzi, S. Kar, H. Ahmed, A. G. Krygier, A. Green, A. Alejo, R. Clarke, R. R. Freeman, J. Fuchs, D. Jung, A. Kleinschmidt, J. T. Morrison, Z. Najmudin, H. Nakamura, P. Norreys, M. Oliver, M. Roth, L. Vassura, M. Zepf, and M. Borghesi
Rev. Sci. Instrum. 86, 073308 (2015)
doi: 10.1063/1.4923088