Ultra-high-precision time control system over any long time delay for laser pump and synchrotron x-ray probe experiment

Yoshimitsu Fukuyama, Nobuhiro Yasuda, Jungeun Kim, Haruno Murayama, Takashi Ohshima, Yoshihito Tanaka, Shigeru Kimura, Hayato Kamioka, Yutaka Moritomo, Koshiro Toriumi, Hitoshi Tanaka, Kenichi Kato, Tetsuya Ishikawa, Masaki Takata

研究成果: Article査読

11 被引用数 (Scopus)

抄録

An ultra-high-precision clock system for long time delay has been developed for picosecond time-resolved x-ray diffraction measurements using synchrotron radiation (SR) pulses and synchronized femtosecond laser pulses. The time delay control between pump laser pulse and the probe SR pulse was achieved by combining an in-phase quadrature modulator and a synchronous counter. This method allowed us to change the delay time by a nearly infinite amount while maintaining the precision of ±8.40 ps. Time-resolved diffraction measurements using the delay control system were demonstrated for precise measurement of an acoustic velocity in a single crystal of gallium arsenide.

本文言語English
論文番号045107
ジャーナルReview of Scientific Instruments
79
4
DOI
出版ステータスPublished - 2008
外部発表はい

ASJC Scopus subject areas

  • Instrumentation

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