Composite bolometers for submillimeter wavelengths

Details Composite bolometers for submillimeter wavelengths Composite bolometers for submillimeter wavelengths

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apopt..17.1562n&link_type=abstract

Applied Optics, vol. 17, May 15, 1978, p. 1562-1567. ERDA-supported research;

Physics

Optics

31

Bolometers, Optimization, Submillimeter Waves, Computer Programs, Dielectric Properties, Fourier Transformation, Metal Films, Noise Spectra, Thermometers

Scientific paper

The fabrication and optimization of composite submillimeter wave bolometers with metal film absorbing elements and doped Ge thermometers are described. Performance characteristics are given for 4 x 4-mm bolometers designed for operation at both He-4 and He-3 temperatures. The performance expected from such bolometers when they are optimized for various values of background loading is calculated. Current dependent noise, which can arise from any of several sources, is included in the analysis. This can make it impossible to reach the background fluctuation noise limit. Feed structures for these bolometers which employ Winston light concentrators are described.

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