Computer Science – Performance
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apopt..26.4767w&link_type=abstract
Applied Optics (ISSN 0003-6935), vol. 26, Nov. 15, 1987, p. 4767-4771.
Computer Science
Performance
10
Far Infrared Radiation, Infrared Detectors, Photoconductors, Spaceborne Astronomy, Gallium, Germanium, Low Temperature, Performance Tests, Stress Distribution
Scientific paper
An optimized leaf-spring apparatus for applying uniaxial stress to a Ge:Ga far-IR photoconductor has been designed and tested. This design has significant advantages for space applications which require high quantum efficiency and stable operation over long periods of time. The important features include adequate spring deflection with relatively small overall size, torque-free stress, easy measurement of applied stress, and a detector configuration with high responsivity. One-dimensional arrays of stressed photoconductors can be constructed using this design. A peak responsivity of 38 A/W is achieved in a detector with a cutoff wavelength of 200 microns, which was operated at a temperature of 2.0 K and a bias voltage equal to one-half of the breakdown voltage.
Beeman Jeffrey W.
Haller Elmar
Richards Paul L.
Wang Jia-Qi
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