Wuppertal 2015 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 11: PWA / TNSA III
AKBP 11.5: Vortrag
Mittwoch, 11. März 2015, 17:45–18:00, F.10.01 (HS 4)
Bright Subcycle Extreme Ultraviolet Bursts from a Single Dense Relativistic Electron Sheet — •wenjun ma1, jianhui bin1,2, hongyong wang2,3, mark yeung4,5, christian kreuzer1, peta foster4,6, brendan dromey4, xueqing yan3, juergen meyer-ter-Vehn2, matthew zepf4,5, and joerg schreiber1,2 — 1Fakultät für Physik, Ludwig-Maximilians-University, Garching, Germany — 2Max-Planck-Institute of Quantum Optics, Garching, Germany — 3State Key Laboratory of Nuclear Physics and Technology & Center of Applied Physics and Technology, Peking University, Beijing, China — 4Department of Physics and Astronomy, Queen's University Belfast, Belfast, United Kingdom — 5Helmholtz Institute Jena, Jena, Germany — 6Central Laser Facility, STFC Rutherford Appleton Laboratory, Chilton, United Kingdom
Relativistic electrons are prodigious sources of photons. Beyond classical accelerators, ultra-intense laser interactions are of particular interest as they allow the coherent motion of relativistic electrons to be controlled and exploited as sources of radiation. Here we report that bright extreme ultraviolet (XUV) radiation was observed when double foil targets separated by a low density plasma were irradiated by a PW-class laser. Simulations show that a dense sheet of relativistic electrons is formed during the interaction of the laser with the tenuous plasma between the two foils. The coherent motion of the electron sheet as it transits the second foil results in a subcycle XUV pulse, consistent with our experimental observations.