Abstract

Capacitive meshes for far ir, low pass filters are prepared from Cu layers on 2.5 μ plastic film. The properties of these meshes of different mesh constants g with their different combinations in two-mesh, four-mesh, and eight-mesh filters are studied in the spectral region 160 cm−1 to 10 cm−1 by the use of a grating spectrometer. The applications of these meshes as low pass filters in the far ir spectral region in a grating spectrometer are described.

© 1969 Optical Society of America

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