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17 February 2003 Development of frequency selective bolometers for ground-based MM-wave astronomy
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Abstract
The Frequency Selective Bolometer (FSB) is a bolometer with a patterned frequency selective absorber, coupled with a band-reflecting backshort. The resulting unit absorbs in-band radiation, and passes out-of-band radiation. Thus a series of FSBs tuned to different bands packed in series in a light pipe forms a compact multi-band photometer. The compact form factor makes it an attractive detector for a mm-wave array camera. We have built and characterized prototypes that demonstrate this technology. We are now developing a set of FSBs for SPEED (the SPEctral Energy Distribution camera), an FSB array camera which will observe 4 pixels in 4 mm-wave spectral bands, to be used on the Heinrich Hertz Telescope and the Large Millimeter Telescope. These FSBs are fabricated on a free-standing SiN film with TES thermometers. We will discuss the design and performance of these detectors.
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David A. Cottingham, Alex Bier, Barbara Campano, Tina C. Chen, Edward S. Cheng, Thomas Crawford, Fred M. Finkbeiner, Dale J. Fixsen, Daniel W. Logan, Stephan Meyer, Elmer Sharp, Robert F. Silverberg, and Grant Wilson "Development of frequency selective bolometers for ground-based MM-wave astronomy", Proc. SPIE 4855, Millimeter and Submillimeter Detectors for Astronomy, (17 February 2003); doi: 10.1117/12.459358; https://doi.org/10.1117/12.459358
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