Development of a pulse radiolysis system by ultra-fast super continuum probe light at Waseda University

Y. Ito, Y. Soeta, Y. Hosaka, Kazuyuki Sakaue, Masakazu Washio

研究成果: Conference contribution

抄録

We have been studying the pulse radiolysis using photo-cathode rf gun at Waseda Univ. Pulse radiolysis is one of the powerful methods to trace early chemical reactions by ionizing radiation. In pulse radiolysis, the probe light absorption, which produced by active species formed by electron beam of rf gun, is measured at each wavelength and made possible to trace reactions. Therefore, we have used the super continuum (SC) light for the probe light. The SC light has a broad spectrum and is generated by nonlinear optical effect caused by injecting picosecond laser to photonic crystal fiber (PCF). However, the resulting SC light was unstable because its peak intensity was not enough. We need to use a femtosecond pulsed laser which is expected to be stronger peak intensity than a picosecond laser. We have developed a mode-locked Yb-doped fiber laser based on Non-Linear Polarization Rotation as a femtosecond pulsed laser and the chirped pulse amplification system which will be able to amplify the femtosecond pulse. In this conference, we will report the performance of the SC light using this fiber laser system, recent results of pulse radiolysis experiments and the future plans.

本文言語English
ホスト出版物のタイトル6th International Particle Accelerator Conference, IPAC 2015
出版社Joint Accelerator Conferences Website (JACoW)
ページ2265-2267
ページ数3
ISBN(電子版)9783954501687
出版ステータスPublished - 2015
イベント6th International Particle Accelerator Conference, IPAC 2015 - Richmond, United States
継続期間: 2015 5 32015 5 8

Other

Other6th International Particle Accelerator Conference, IPAC 2015
国/地域United States
CityRichmond
Period15/5/315/5/8

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 原子分子物理学および光学

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