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Proceedings Paper

Sensitive Detection Of Tunable Diode Laser Absorption By Polarization Rotation
Author(s): G. W. Loge; G. A. Laguna; A. Hartford
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Paper Abstract

Results are presented demonstrating that diode laser absorption sensitivity can be increased by using the Faraday or Kerr effect to rotate the polarization of the source so that crossed polarizers can be used to reduce source noise. The Faraday effect is demonstrated using nitric oxide in a magnetic field, and the Kerr effect is demonstrated using methyl fluoride in an electric field. Some description of how absorption in an external field causes polarization rotation is presented as well as some conclusions on the types of molecules for which this technique is best suited.

Paper Details

Date Published: 20 November 1985
PDF: 5 pages
Proc. SPIE 0540, Southwest Conf on Optics '85, (20 November 1985); doi: 10.1117/12.976140
Show Author Affiliations
G. W. Loge, Los Alamos National Laboratory (United States)
G. A. Laguna, Los Alamos National Laboratory (United States)
A. Hartford, Los Alamos National Laboratory (United States)


Published in SPIE Proceedings Vol. 0540:
Southwest Conf on Optics '85
Susanne C. Stotlar, Editor(s)

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