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A simple method of producing far-infrared high-pass filters

Huggard, P. G., Schneider, G., Prettl, Wilhelm and Blau, W. (1991) A simple method of producing far-infrared high-pass filters. Measurement Science and Technology 2 (3), p. 203.

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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%.


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Item type:Article
Date:March 1991
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Wilhelm Prettl
Identification Number:
ValueType
10.1088/0957-0233/2/3/003DOI
Classification:
NotationType
84.40.Az; 07.57.KpPACS
Keywords:Electronics and devices, Instrumentation and measurement
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Unknown
Item ID:17070
Owner only: item control page

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