Abstract

Optical properties of Ag and SiO₂ co-evaporated films were studied in the visible and near ir regions, and a novel neutral density filter for near ir radiation has been proposed. The films, which contain 56-vol.% Ag, exhibit almost wavelength-independent optical transmittance in the longer than 1-μm wavelength region. Neutral density filters, which have desired optical transmittance, can be obtained by controlling the co-evaporated film thickness.

© 1979 Optical Society of America

Properties of Evaporated SiO₂, SiOxNy, and TiO₂, Films

W. Heitmann
Appl. Opt. 10(12) 2685-2689 (1971)

Optical properties of bismuth trifluoride thin films

T. J. Moravec, R. A. Skogman, and E. Bernal G.
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Vacuum Deposition of Dielectric and Semiconductor Films by a CO₂ Laser

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Acoustooptic tunable filter performance in a staring IR sensor

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