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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 33 — Nov. 20, 2001
  • pp: 5985–5990

Polarimetric Measurements of Long-Wave Infrared Spectral Radiance from Water

Joseph A. Shaw  »View Author Affiliations


Applied Optics, Vol. 40, Issue 33, pp. 5985-5990 (2001)
http://dx.doi.org/10.1364/AO.40.005985


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Abstract

Polarimetric measurements of the thermal infrared spectral radiance from water are reported and are compared with calculations from a recently published model over the spectral range of 600–1600 cm−1 (6.25–16.67-μm wavelength). In this spectral range, warm water viewed under a dry, clear atmosphere appears vertically polarized by 6–12%. The measured spectral degree of polarization agrees with calculations within the measurement uncertainty (~0.5% polarization in spectral regions with high atmospheric transmittance and 1.5% polarization in spectral regions with low atmospheric transmittance). Uncertainty also arises from temporal changes in water and air temperatures between measurements at orthogonal polarization states, indicating the desirability of simultaneous measurements for both polarization states.

© 2001 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(120.5630) Instrumentation, measurement, and metrology : Radiometry

Citation
Joseph A. Shaw, "Polarimetric Measurements of Long-Wave Infrared Spectral Radiance from Water," Appl. Opt. 40, 5985-5990 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-33-5985

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