Transition Moment of the A2.DELTA.-X2.PI. System of SiH Studied by Laser Induced Fluorescence Spectroscopy in Supersonic Free Expansions.

• FUKUSHIMA Masaru

  <I>Advanced Technology Research Center, Mitsubishi Heavy Industries, LTD.</I>

• ISHIWATA Takashi

  <I>Department of Information Sciences, Hiroshima City University</I>

• OBI Kinichi

  <I>Department of Chemistry, Tokyo Institute of Technology</I>

Bibliographic Information

Other Title

• Transition Moment of the A2Δ-X2Π System of SiH Studied by Laser Induced Fluorescence Spectroscopy in Supersonic Free Expansions
• Transition Moment of the A2 デルターX2 パイ S

Abstract

Laser induced fluorescence (LIF) excitation spectra of the A²Δ-X²II transition of SiHhave been measured insupersonic free expansions. We observed the eight vibronic bands, 0-0, 1-0, 0-1, 1-1, 2-1, 1-2, 2-2, and 2-3, thethree Δv=-1 bands of which were observed for the first time. The Δv=0 sequencedominates the spectra, because of favorable Franck-Condon (F-C) factors. On the other hand, the intensities ofthe Δv=- 1transitions are much weaker than those of the Δv=+1 transitions in spite of theconsiderable intensity of Δv=-1expected from the calculated F-C factors. This behavior is interpreted in terms of the transition momenthaving the strong dependence on internuclear distance.

Journal

• The Review of Laser Engineering

  The Review of Laser Engineering 26 (6), 468-472, 1998

  The Laser Society of Japan

Keywords

• Laser induced fluoescence spectroscopy
• SiH radical
• Franck-Condon factor
• Electronic transitionmoment
• Fluorescence lifeime

Details

• CRID: 1390001204647009408
• NII Article ID: 10002249654
• NII Book ID: AN00255326
• DOI: 10.2184/lsj.26.468
• ISSN: 13496603
• ISSN: 03870200
• NDL BIB ID: 4511852
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4511852
• Web Site: http://www.jstage.jst.go.jp/article/lsj1973/26/6/26_6_468/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed