Polarizer for infrared radiation

Optical: systems and elements – Having significant infrared or ultraviolet property – Having polarizing element

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Details

359360, 359486, 359569, 359575, G02B 530

Patent

active

051776359

ABSTRACT:
An infrared polarizer has a transparent substrate on which a pattern of spaced metal stripes is deposited. The stripe thickness is approximately equal to at least the stripe spacing which results in a substantial increase of the polarization contrast as compared to that of conventional polarizers having thinner stripes.

REFERENCES:
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patent: 4289381 (1981-09-01), Garvin
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patent: 4915463 (1990-04-01), Barbee Jr.
patent: 4927236 (1990-05-01), Keilmann
patent: 4946231 (1990-08-01), Pistor
Cambridge Physical Sciences; "Far Infrared Grid Polarssurs" Data Sheet, Bar ill, Cambridge CB3 8E2, England pp. 1-5, May 22, 1972.
Roumiguieres "The Rectangular-Groove Grating Used as an Infrared Polarizer" Optics Communications; vol. 19, No. 1, Jun. 1976 pp. 76-78.
Challener et al.; "Grid Polarizers for Infrared Fourier Spectrometers"; Infrared Physics; vol. 20 No. 4; Jul. 1980 pp. 215-222.
Beunen et al.; "Performance of Free-Standing Grids Wound from 10-mm-diameter Tungsten Wire at Submillimeter wavelengths: Computation and Measurement" J. Opt. Soc. Am./ vol. 71, No. 2; Feb. 1981; pp. 184-188.
Patent Abstracts of Japan, vol. 9 No. 203 (P-381) 1926--Aug. 21, 1985, 60 066 203 Matsushita Denki.

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