Observation of saturation spectrum of the 2v3band of methane

Kotaro Suzumura, Hiroyuki Sasada

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


We have carried out intracavity saturated absorption spectroscopy of the 2v3band of methane using a 1.6- jUm-grating feedback external-cavity semiconductor laser. Since the narrowest linewidth of observed saturation dips is only 0.9 MHz (half-width at half-maximum), a high potential exists for the use of this band as a precise frequency standard, especially when considering that the V3band of methane is currently a well-established frequency standard.

Original languageEnglish
Pages (from-to)L1620-L1621
JournalJapanese journal of applied physics
Issue number12
Publication statusPublished - 1995 Dec
Externally publishedYes


  • Fabry-Perot cavity
  • Laser spectroscopy
  • Methane
  • Overtone band
  • Saturation spectroscopy
  • Semiconductor laser

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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