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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 1 — Jan. 1, 1984
  • pp: 83–86

Calibration of diode-laser second-derivative modulation spectrometry with a reference cell

Claus Weitkamp  »View Author Affiliations


Applied Optics, Vol. 23, Issue 1, pp. 83-86 (1984)
http://dx.doi.org/10.1364/AO.23.000083


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Abstract

Diode-laser second-derivative modulation spectrometry is a simple means of measuring trace concentrations of small molecules in the gas phase. For a setup with a reference cell used both for laser frequency locking and as a concentration standard, the calibration algorithm is developed for the general case of nonvanishing nonlinear terms in the power expansion of Beer’s law in both the sample and reference channel. A practical example is given.

© 1984 Optical Society of America

History
Original Manuscript: July 2, 1983
Published: January 1, 1984

Citation
Claus Weitkamp, "Calibration of diode-laser second-derivative modulation spectrometry with a reference cell," Appl. Opt. 23, 83-86 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-1-83

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