Publication Date:
2019-07-13
Description:
In order to achieve the full sensitivity required for future space astronomy applications, IR detector systems will have to be cooled to 0.1 K or less. The feasibility of such cryocooling has been demonstrated for the established laboratory technique of adiabatic demagnetization, and it has been shown that bolometers made from compensated silicon, with ion-implanted contacts, come close to calculated ultimate performance limits. Unlike bolometers, silicon and germanium photoconductors are highly wavelength-dependent. Useful wavelengths are presented for the most promising photodetectors based on these materials. It is noted that, as the relevant microelectronic technology advances, array detectors in the near-IR may be expected to approach the size and performance of large, intrinsic silicon CCD arrays now available for optical wavelengths.
Keywords:
INSTRUMENTATION AND PHOTOGRAPHY
Type:
AIAA PAPER 82-1838
,
Technology for Space Astrophysics Conference: The Next 30 Years; Oct 04, 1982 - Oct 06, 1982; Danbury, CT
Format:
text
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