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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 4 — Apr. 1, 2013
  • pp: 1027–1035

Accurate transition frequency list of the ν3 band of methane from sub-Doppler resolution comb-referenced spectroscopy

Masashi Abe, Kana Iwakuni, Sho Okubo, and Hiroyuki Sasada  »View Author Affiliations


JOSA B, Vol. 30, Issue 4, pp. 1027-1035 (2013)
http://dx.doi.org/10.1364/JOSAB.30.001027


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Abstract

We have carried out sub-Doppler resolution spectroscopy of the ν3 band of CH412 using a difference-frequency-generation source, an enhanced cavity absorption cell, and an optical frequency comb, and we have added 150 lines to the transition frequency list published earlier [Opt. Express 19, 23878 (2011)]. It now covers 204 lines from the P(12) to R(8) transitions, involving 21 weak forbidden transitions, with a typical uncertainty of 3 kHz for allowed transitions and 12 kHz for forbidden transitions. The combination differences between the allowed and forbidden transitions enable us to determine a scalar rotational constant and three scalar distortion constants of the ground vibrational state with greatly reduced uncertainties.

© 2013 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:
Spectroscopy

History
Original Manuscript: December 10, 2012
Revised Manuscript: February 25, 2013
Manuscript Accepted: February 25, 2013
Published: March 26, 2013

Citation
Masashi Abe, Kana Iwakuni, Sho Okubo, and Hiroyuki Sasada, "Accurate transition frequency list of the ν3 band of methane from sub-Doppler resolution comb-referenced spectroscopy," J. Opt. Soc. Am. B 30, 1027-1035 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-4-1027

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