NEUTRAL DENSITY FILTERS BY CO-EVAPORATED AG AND SIO2-FILMS FOR NEAR IR RADIATION

被引：8

作者：

SHIBUKAWA, A

机构：

[1] Nippon Telegraph and Telephone Public Corporation, Ibaraki Electrical Communication Laboratory, Tokai, Ibaraki-ken

来源：

APPLIED OPTICS | 1979年 / 18卷 / 09期

关键词：

D O I：

10.1364/AO.18.001460

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页码：1460 / 1462

页数：3

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