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Proceedings Paper

Optical characterization of photolithographic metal grids
Author(s): Kurt A. Osmer; Mike Ivor Jones
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Paper Abstract

Infrared window materials for modern military aircraft must simultaneously provide adequate optical performance and maintain stringent shielding levels for electromagnetic interference (EMI). Microscopic metal grids deposited on the surface of dielectric windows can provide the conductivity necessary for proper radio frequency or RF shielding. This paper will examine the optical impact of three grid patterns designed for EMI suppression. Transmission blockage and beam diffraction in the far-field have been measured and compared to predicted values. A discussion of durability under severe thermal and rain erosion environments is also included.

Paper Details

Date Published: 1 October 1991
PDF: 9 pages
Proc. SPIE 1498, Tactical Infrared Systems, (1 October 1991); doi: 10.1117/12.46819
Show Author Affiliations
Kurt A. Osmer, General Dynamics Corp. (United States)
Mike Ivor Jones, General Dynamics Corp. (United States)

Published in SPIE Proceedings Vol. 1498:
Tactical Infrared Systems
Jerry W. Tuttle, Editor(s)

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