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A New Modulation Method for Sensitive Nonlinear Spectroscopy - Application to Molecular Overtones as Visible Frequency References
Published
Author(s)
L -. Ma, Jun Ye, P Dub, John L. Hall
Abstract
Following de Labachelerie, Nadagawa and Ohtsu (Ref. 6), we note the possibility to obtain saturated absoption spectra of a weakly-absorbing gas sample by placing it within an external high-finesse resonator. A principal disadvantage of this approach, the ready conversion of frequency noise into amplitude noise, can be totally avoided by rf detection methods when the rf modulation frequency is chosen to match the external cavity's free-spectural range. Excellent spectra are obtained from 5 ppm absorption by C2H2 in the 790 nm v1+ 3 v3 band.
Proceedings Title
Laser Spectroscopy, International Conference | 12th | | World Scientific Publishing Company
Volume
12
Conference Dates
June 12-16, 1995
Conference Location
Capri, 1, IT
Conference Title
Laser Review
Pub Type
Conferences
Keywords
acetylene, molecular overtones, optical frequency standards, saturated absoption, ultrasensitive spectroscopy
Citation
Ma, L.
, Ye, J.
, Dub, P.
and Hall, J.
(1996),
A New Modulation Method for Sensitive Nonlinear Spectroscopy - Application to Molecular Overtones as Visible Frequency References, Laser Spectroscopy, International Conference | 12th | | World Scientific Publishing Company, Capri, 1, IT
(Accessed October 10, 2025)