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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 35 — Dec. 10, 2006
  • pp: 8990–8998

Design and analysis of a flow-through integrating cavity absorption meter

Deric J. Gray, George W. Kattawar, and Edward S. Fry  »View Author Affiliations


Applied Optics, Vol. 45, Issue 35, pp. 8990-8998 (2006)
http://dx.doi.org/10.1364/AO.45.008990


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Abstract

We present a design for a flow-through integrating cavity absorption meter. This instrument, in principle, is capable of measuring the spectral optical absorption coefficient of natural waters in situ independently of scattering effects. Monte Carlo simulations are used to determine the design parameters and evaluate instrument performance. We investigate both detector response and the distribution of radiant energy inside the instrument and present empirical equations describing these quantities as a function of the absorption coefficient. The effects of changing the instrument geometry are illustrated. Finally, we discuss the effects of scattering on the instrument performance and verify that they are negligible for natural waters.

© 2006 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(120.3150) Instrumentation, measurement, and metrology : Integrating spheres
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(300.1030) Spectroscopy : Absorption

History
Original Manuscript: March 16, 2006
Revised Manuscript: August 10, 2006
Manuscript Accepted: August 11, 2006

Citation
Deric J. Gray, George W. Kattawar, and Edward S. Fry, "Design and analysis of a flow-through integrating cavity absorption meter," Appl. Opt. 45, 8990-8998 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-35-8990

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