Frequency Modulated (FM) Spectroscopy

G. C. Bjorklund; W. Lenth; M. D. Levenson; C. Ortiz

doi:10.1117/12.965828

8 September 1981 Frequency Modulated (FM) Spectroscopy

G. C. Bjorklund, W. Lenth, M. D. Levenson, C. Ortiz

Proceedings Volume 0286, Laser Spectroscopy for Sensitive Detection; (1981) https://doi.org/10.1117/12.965828
Event: 1981 Technical Symposium East, 1981, Washington, D.C., United States

Abstract

Sensitive and rapid measurements of the absorption and dispersion associated with narrow spectral features are accomplished using frequency modulation (FM) spectroscopy. The absorption or dispersion is measured by detecting the heterodyne beat signal which occurs when the FM spectrum is distorted by the spectral feature of interest. Experimental results are presented.

Citation Download Citation

G. C. Bjorklund, W. Lenth, M. D. Levenson, and C. Ortiz "Frequency Modulated (FM) Spectroscopy", Proc. SPIE 0286, Laser Spectroscopy for Sensitive Detection, (8 September 1981); https://doi.org/10.1117/12.965828

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