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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 18 — Jun. 20, 2004
  • pp: 3747–3751

Effective Frequency Technique for Finite Spectral Bandwidth Effects

C. Laurence Korb and Chi Y. Weng  »View Author Affiliations


Applied Optics, Vol. 43, Issue 18, pp. 3747-3751 (2004)
http://dx.doi.org/10.1364/AO.43.003747


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Abstract

A technique that uses a single effective frequency to represent the effects of finite spectral bandwidth for active and passive measurements centered on an absorption line, a trough region, or a slowly varying spectral feature is described. For Gaussian and rectangular instrumental line shapes, the effective frequency is shown to have a simple form that depends only on the instrumental line shape and bandwidth and not on the absorption line profile. The technique is applicable to a large class of active and passive measurements and simulations in both the laboratory and the atmosphere. Simulations show that the technique yields accuracies better than 0.1% for bandwidths less than 0.2 times the atmospheric linewidth for a rectangular line shape or better than 0.2% for a Gaussian.

© 2004 Optical Society of America

OCIS Codes
(000.3860) General : Mathematical methods in physics
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.1910) Remote sensing and sensors : DIAL, differential absorption lidar
(300.1030) Spectroscopy : Absorption
(300.6320) Spectroscopy : Spectroscopy, high-resolution

Citation
C. Laurence Korb and Chi Y. Weng, "Effective Frequency Technique for Finite Spectral Bandwidth Effects," Appl. Opt. 43, 3747-3751 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-18-3747


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References

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