A Caltech Library Service

Cavity ring-down spectroscopy measurements of sub-Doppler hyperfine structure

Long, D. A. and Havey, D. K. and Okumura, M. and Miller, C. E. and Hodges, J. T. (2010) Cavity ring-down spectroscopy measurements of sub-Doppler hyperfine structure. Physical Review A, 81 (6). Art. No. 064502. ISSN 1050-2947.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


Frequency-stabilized cavity ring-down spectroscopy (FS-CRDS) was used to measure magnetic dipole transitions in the b^1Σ_g^+ ← X^3Σ_g^-(0,0) band of O_2. The ^(17)O-containing isotopologues show unresolved hyperfine structure due to magnetic hyperfine splitting in the ground state. The sensitivity and stability of FS-CRDS allow for quantitative sub-Doppler measurements of the hyperfine constants, even when the hyperfine splittings are much smaller than the Doppler width. Unlike saturation spectroscopy, this linear absorption technique can be applied to weak transitions and employed to quantitatively measure intensities and line shapes. This method may be an attractive approach for measuring unresolved hyperfine structure in excited electronic states.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle
Okumura, M.0000-0001-6874-1137
Miller, C. E.0000-0002-9380-4838
Additional Information:© 2010 APS. Received 23 March 2010; published 16 June 2010. D. A. Long was supported by the National Science Foundation and Department of Defense. D. K. Havey acknowledges the support of the National Research Council as a postdoctoral fellow at NIST, Gaithersburg, MD. Part of the research described in this report was performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration (NASA). Additional support was provided by the Orbiting Carbon Observatory (OCO) project, a NASA Earth System Science Pathfinder (ESSP) mission, and the NASA Upper Atmospheric Research Program Grants NNG06GD88G and NNX09AE21G.
Funding AgencyGrant Number
Department of DefenseUNSPECIFIED
National Research CouncilUNSPECIFIED
Issue or Number:6
Classification Code:PACS: 33.15.Pw, 33.70.Jg
Record Number:CaltechAUTHORS:20100712-082441301
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18986
Deposited By: Tony Diaz
Deposited On:14 Jul 2010 23:59
Last Modified:09 Mar 2020 13:19

Repository Staff Only: item control page