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5 September 2014Diffractive focusing optics design at Helmholtz-Zentrum Berlin
Alexander Firsov,1 Maria Brzhezinskaya,1 Anatoly Firsov,2 Alexander Svintsov,2 Alexei Erko1
1Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (Germany) 2Institute of Microelectronics Technology and High Purity Materials (Russian Federation)
X-ray laser facilities are being constructed all over the world: Linac Coherent Light Source (LCLS) in California,
RIKEN X-Ray Free-Electron Laser at SPring-8 in Japan, European XFEL in Germany etc. XFEL is the next-generation
(4th) light source. However, the number of such experimental facilities (SRS and FEL) is quite limited. At the same
time, relatively small vacuum ultraviolet laboratories with impulse sources [High Harmonic Generators (HHG)] allow
one conduct in-house research. This makes the research community directly involved in experiments with time resolution
much wider. The latest radiation sources and modern physical experiments require application of the newest diffractive
elements. Such diffractive elements are required for implementation of experiments with time resolution using
synchrotron radiation sources or high harmonics generators. For example, valence state evolution or molecules
dissociation in time-resolved investigation. Modern experiments like this might require implementation of time
resolution in femto - (10-15) and even atto- (10-18) seconds.
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Alexander Firsov, Maria Brzhezinskaya, Anatoly Firsov, Alexander Svintsov, Alexei Erko, "Diffractive focusing optics design at Helmholtz-Zentrum Berlin," Proc. SPIE 9207, Advances in X-Ray/EUV Optics and Components IX, 920712 (5 September 2014); https://doi.org/10.1117/12.2061179