Development of picosecond time‐resolved X‐ray absorption spectroscopy by high‐repetition‐rate laser pump/X‐ray probe at Beijing Synchrotron Radiation Facility. (24th March 2017)

• Record Type: Journal Article
• Authors: Wang, Hao; Yu, Can; Wei, Xu; Gao, Zhenhua; Xu, Guang-Lei; Sun, Da-Rui; Li, Zhenjie; Zhou, Yangfan; Li, Qiu-Ju; Zhang, Bing-Bing; Xu, Jin-Qiang; Wang, Lin; Zhang, Yan; Tan, Ying-Lei; Tao, Ye
• Is Part Of: Journal of synchrotron radiation. Volume 24:Part 3(2017)
• Page Start: 667
• Page End: 673
• Publication Date: 2017-03-24
• Subjects: laser pump/X‐ray probe -- X‐ray absorption spectroscopy -- high repetition rate; Synchrotron radiation -- Periodicals; Free electron lasers -- Periodicals; 539.73505
• DOI: 10.1107/S1600577517003277
• Languages: English
• ISSNs: 0909-0495

Abstract

Abstract : The detection of transient X‐ray absorption spectroscopy has been realised using a high‐repetition‐rate laser pump/X‐ray probe method at a wiggler beamline. A picosecond X‐ray absorption near‐edge spectrum was obtained for a photo‐induced spin‐crossover iron complex. Abstract : A new setup and commissioning of transient X‐ray absorption spectroscopy are described, based on the high‐repetition‐rate laser pump/X‐ray probe method, at the 1W2B wiggler beamline at the Beijing Synchrotron Radiation Facility. A high‐repetition‐rate and high‐power laser is incorporated into the setup with in‐house‐built avalanche photodiodes as detectors. A simple acquisition scheme was applied to obtain laser‐on and laser‐off signals simultaneously. The capability of picosecond transient X‐ray absorption spectroscopy measurement was demonstrated for a photo‐induced spin‐crossover iron complex in 6 m M solution with 155 kHz repetition rate.