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

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number045107
JournalReview of Scientific Instruments
Volume79
Issue number4
DOIs
Publication statusPublished - 2008 May 8
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation

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    Fukuyama, Y., Yasuda, N., Kim, J., Murayama, H., Ohshima, T., Tanaka, Y., Kimura, S., Kamioka, H., Moritomo, Y., Toriumi, K., Tanaka, H., Kato, K., Ishikawa, T., & Takata, M. (2008). Ultra-high-precision time control system over any long time delay for laser pump and synchrotron x-ray probe experiment. Review of Scientific Instruments, 79(4), [045107]. https://doi.org/10.1063/1.2906232