Bandpass interference filters for very far infrared astronomy

Details Bandpass interference filters for very far infrared astronomy Bandpass interference filters for very far infrared astronomy

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980infph..20..287d&link_type=abstract

Infrared Physics, vol. 20, July 1980, p. 287-290.

Computer Science

Performance

10

Bandpass Filters, Bolometers, Far Infrared Radiation, Infrared Astronomy, Radio Frequency Interference, Astronomical Photography, Atmospheric Windows, Bandwidth, Incident Radiation, Mesh, Performance Tests

Scientific paper

Three bandpass filters have been constructed for use with a 0.3K bolometer. The center frequencies and bandwidths of the filters are chosen to correspond with the 1, 2 and 3 mm atmospheric windows. The filters are formed of resonant metallic grids separated by air spacers. Peak transmissivities of about 90% at 3 mm and 65% at 1 mm have been achieved.

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