Abstract
We present the design and analysis of a hard x-ray split-delay optical arrangement that combines diffractive and crystal optics. Transmission gratings are employed to achieve the much-desired amplitude splitting and recombination of the beam. Asymmetric channel-cut crystals are utilized to tune the relative delay time. The use of a dispersion-compensation arrangement of the crystals allows the system to achieve subnanoradian pointing stability during a delay scan. It also minimizes wavefront distortion and preserves the pulse front and pulse duration. We analyze the performance of a prototype design that can cover a delay time range of 15 ps with a sub-20 fs time resolution at 10 keV. We anticipate that this system can fully satisfy the very demanding stability requirements for performing split-pulse x-ray photon correlation spectroscopy measurements for the investigation of fast atomic scale dynamics in complex disordered matter.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Yanwen Sun, Nan Wang, Sanghoon Song, Peihao Sun, Matthieu Chollet, Takahiro Sato, Tim B. van Driel, Silke Nelson, Rajan Plumley, Jordi Montana-Lopez, Samuel W. Teitelbaum, Johann Haber, Jerome B. Hastings, Alfred Q. R. Baron, Mark Sutton, Paul H. Fuoss, Aymeric Robert, and Diling Zhu
Opt. Lett. 44(10) 2582-2585 (2019)
Taito Osaka, Takashi Hirano, Yasuhisa Sano, Yuichi Inubushi, Satoshi Matsuyama, Kensuke Tono, Tetsuya Ishikawa, Kazuto Yamauchi, and Makina Yabashi
Opt. Express 24(9) 9187-9201 (2016)
Wojciech Roseker, Hermann Franz, Horst Schulte-Schrepping, Anita Ehnes, Olaf Leupold, Federico Zontone, Aymeric Robert, and Gerhard Grübel
Opt. Lett. 34(12) 1768-1770 (2009)