A SIMPLE METHOD OF PRODUCING FAR-INFRARED HIGH-PASS FILTERS

HUGGARD, PG and SCHNEIDER, G and PRETTL, W and BLAU, W (1991) A SIMPLE METHOD OF PRODUCING FAR-INFRARED HIGH-PASS FILTERS. MEASUREMENT SCIENCE AND TECHNOLOGY, 2 (3). pp. 203-206. ISSN 0957-0233, 1361-6501

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Abstract

A method of making high-pass waveguide filters for the far infrared is described. The filters are formed from arrays of tightly packed narrow-bore metal tubes. Such filters feature sharp cut-off transitions in the region between 20 cm-1 and 40 cm-1. Transmission above cut-off is comparable to that in similar filters produced by drilling holes in thin metal sheets. Typically the transmissions just above cut-off are about 5% while that just below was measured as less than 0.1%.

Item Type: Article
Uncontrolled Keywords: NONLINEAR OPTICS;
Depositing User: Dr. Gernot Deinzer
Last Modified: 19 Oct 2022 08:46
URI: https://pred.uni-regensburg.de/id/eprint/55067

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