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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 11, Iss. 9 — Sep. 1, 1972
  • pp: 1942–1945

Emission Polarization Study on Quartz and Calcite

Robert K. Vincent  »View Author Affiliations


Applied Optics, Vol. 11, Issue 9, pp. 1942-1945 (1972)
http://dx.doi.org/10.1364/AO.11.001942


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Abstract

Spectral emission polarization of quartz and calcite polished plates for observation angles of 20° and 70° is calculated by the substitution of complex index of refraction values for each mineral into Fresnel’s equations. The emission polarization is shown to be quite wavelength-dependent, demonstrating that selected narrow or medium-width (Δλ ≈ 1.5 μm) spectral bands exhibit a significantly higher percentage of polarization than a broad spectral band (Δλ ≈ 6 μm) for these two minerals. Field measurements with a broadband infrared radiometer yield polarizations on the order of 2% for a coarse-grained granite rock and beach sand (both quartz-rich). This implies that a more sensitive detector with a selected medium-width filter may be capable of measuring emission polarization accurately enough to make this parameter useful as a remote sensing tool for discrimination among rocks on the basis of texture.

© 1972 Optical Society of America

History
Original Manuscript: February 18, 1972
Published: September 1, 1972

Citation
Robert K. Vincent, "Emission Polarization Study on Quartz and Calcite," Appl. Opt. 11, 1942-1945 (1972)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-11-9-1942

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