Perera TA, Downes TP, Meyer SS, Crawford TM, Cheng ES, Chen TC, Cottingham DA, Sharp EH, Silverberg RF, Finkbeiner FM, Fixsen DJ, Logan DW, Wilson GW. Optical performance of frequency-selective bolometers.
Appl Opt 2006;
45:7643-51. [PMID:
17068598 DOI:
10.1364/ao.45.007643]
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Abstract
Frequency-selective bolometers (FSBs) are a new type of detector for millimeter and submillimeter wavelengths that are transparent to all but a narrow range of frequencies as set by characteristics of the absorber itself. Therefore stacks of FSBs tuned to different frequencies provide a low-loss compact method for utilizing a large fraction of the light collected by a telescope. Tests of prototype FSBs indicate that the absorption spectra are well predicted by models, that peak absolute absorption efficiencies of the order of 50% are attainable, and that their out-of-band transmission is high.
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