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The optical performance of frequency selective bolometers

T. A. Perera·T. C. Chen·E. S. Cheng·D. A. Cottingham·T. M. Crawford·T. P. Downes·F. M. Finkbeiner·D. J. Fixsen·D. W. Logan·S. S. Meyer·E. H. Sharp·R. F. Silverberg·G. W. Wilson
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Abstract

Frequency Selective Bolometers (FSBs) are a new type of detector for millimeter and sub-millimeter 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, described here, indicate that the absorption spectra are well predicted by models, that peak absolute absorption efficiencies of order 50% are attainable, and that their out-of-band transmission is high.

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T. A. Perera, T. C. Chen, E. S. Cheng, D. A. Cottingham, T. M. Crawford, T. P. Downes, F. M. Finkbeiner, D. J. Fixsen, D. W. Logan, S. S. Meyer, E. H. Sharp, R. F. Silverberg, G. W. Wilson. 2006-10-19. The optical performance of frequency selective bolometers. https://doi.org/10.1364/ao.45.007643

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