Issues in the readout of FIR- and millimeter-wave bolometers for astrophysical applications

Peter T. Timbie; Jun-wei Zhou; Khurram Farooqui; C. Grant Willson

doi:10.1117/12.178470

23 June 1994 Issues in the readout of FIR- and millimeter-wave bolometers for astrophysical applications

Peter T. Timbie, Jun-wei Zhou, Khurram Farooqui, C. Grant Willson

Proceedings Volume 2226, Infrared Readout Electronics II; (1994) https://doi.org/10.1117/12.178470
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

Bolometers are used extensively in astrophysics for imaging and spectroscopy at wavelengths between several millimeters and 10 microns. They are particularly useful for applications requiring high sensitivity; current and planned bolometer systems are nearing the sensitivity limit imposed by background photon noise, even in the low-background conditions achieved in observatories on satellites, aircraft, and balloons. Reaching this limit will require new types of bolometers as well as improved preamplifiers to read them out. We describe two types of bolometers optimized for low-background operation and focus on the design and testing of their preamplifier circuits.

Citation Download Citation

Peter T. Timbie, Jun-wei Zhou, Khurram Farooqui, and C. Grant Willson "Issues in the readout of FIR- and millimeter-wave bolometers for astrophysical applications", Proc. SPIE 2226, Infrared Readout Electronics II, (23 June 1994); https://doi.org/10.1117/12.178470

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