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Proceedings Paper

Near-Infrared (IR) Polarizing Glass
Author(s): David N. Gritz
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Paper Abstract

High efficiency glass polarizers have been developed that offer superior design characteristics over plastic, wire-grid and some prism type polarizers. Glass polarizers have transmittance greater than 90%, contrast greater than 500:1 at acceptance angles up to 60 degrees, and excellent resistance to humidity and temperature. High polarizing efficiency is obtained over a bandwidth of about 300nm. The location of the polarized band can be specified within the near-infrared range (800-1800nm). The polarizing effect is due to the resonant absorption of elongated sub-microscopic particles of silver metal aligned along a common axis in the glass. The polarizing mechanism is discussed briefly followed by a review of typical glass polarizer performance, design characteristics and suggested applications.

Paper Details

Date Published: 20 September 1987
PDF: 9 pages
Proc. SPIE 0750, Infrared Systems and Components, (20 September 1987); doi: 10.1117/12.939853
Show Author Affiliations
David N. Gritz, Corning Glass Works (United States)

Published in SPIE Proceedings Vol. 0750:
Infrared Systems and Components
Robert L. Caswell, Editor(s)

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