Broadband pump―probe imaging spectroscopy applicable to ultrafast single-shot events

• Minami, Yasuo

• Yamaki, Hiromoto

• Katayama, Ikufumi

• Takeda, Jun

Abstract

We propose a scheme for frequency-resolved single-shot spectroscopy with an echelon mirror.The echelon mirror is employed to generate spatially encoded time delays for the white-lightcontinuum probe beam; it produces a temporal step of 66 fs and an overall time delay of 33 ps.We demonstrate broadband pump―probe imaging spectroscopy and present time―frequency two-dimensional images of the transient absorption of β-carotene between 420 and 630 nmwith single-shot detection. The results show that this technique is a powerful tool forobserving the ultrafast, broadband transient dynamics of materials that exhibit irreversiblereactions or deterioration by laser pulse irradiation.

Journal

• Applied physics express

  Applied physics express 7 (2), 2014-02

Details

• CRID: 1050564287767675904
• NII Article ID: 120005429820
• NII Book ID: AA12295133
• ISSN: 18820778
• Web Site: http://hdl.handle.net/10131/8577
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles