Sensitive H2 detection by use of thermal-lens Raman spectroscopy without a tunable laser

Yuji Oki, Shinichiro Nakazono, Yuji Nonaka, Mitsuo Maeda

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A new nonlinear Raman spectroscopy technique for trace-gas detection was proposed and demonstrated. The technique involved the use of a thermal-lens detection scheme to monitor thermal emission from the stimulated Raman process. We termed this technique thermal-lens Raman spectroscopy, and it was combined with a novel scheme involving a nonlinear Raman spectroscopy without a tunable laser. This technique was applied to detecting trace hydrogen molecules in the atmosphere by use of a pulsed Nd:YAG laser and a continuous-wave He-Ne probe laser. A detection limit of 9 parts in 106 was attained.

Original languageEnglish
Pages (from-to)1040-1042
Number of pages3
JournalOptics Letters
Volume25
Issue number14
DOIs
Publication statusPublished - Jul 15 2000

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thermal lensing
tunable lasers
Raman spectroscopy
thermal emission
continuous radiation
YAG lasers
pulsed lasers
atmospheres
probes
hydrogen
gases
lasers
molecules

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Sensitive H2 detection by use of thermal-lens Raman spectroscopy without a tunable laser. / Oki, Yuji; Nakazono, Shinichiro; Nonaka, Yuji; Maeda, Mitsuo.

In: Optics Letters, Vol. 25, No. 14, 15.07.2000, p. 1040-1042.

Research output: Contribution to journalArticle

Oki, Yuji ; Nakazono, Shinichiro ; Nonaka, Yuji ; Maeda, Mitsuo. / Sensitive H2 detection by use of thermal-lens Raman spectroscopy without a tunable laser. In: Optics Letters. 2000 ; Vol. 25, No. 14. pp. 1040-1042.
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