Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ijimw..13.1515w&link_type=abstract
International Journal of Infrared and Millimeter Waves (ISSN 0195-9271), vol. 13, no. 10, p. 1515-1537.
Astronomy and Astrophysics
Astronomy
3
Fabry-Perot Interferometers, Optical Heterodyning, Radio Astronomy, Submillimeter Waves, Aberration, Antenna Design, Infrared Astronomy, Refractivity
Scientific paper
In this paper, we summarize the issues that should be considered when designing broadband quasi-optical systems for submillimeter-wave radio-astronomy receivers. We cover topics such as bandwidth, cross-talk, truncation, and aberrations, and we argue that it should be possible to manufacture high-efficiency systems that have several octaves of bandwidth. A key feature of the paper is that we use the language of multimode Gaussian optics throughout, and in this way, we emphasize that a receiver is a diffraction-limited imaging system rather than just a collection of components for guiding Gaussian beams. The whole discussion is conducted in terms of a particular system we are constructing for the James Clerk Maxwell Telescope in Hawaii.
Egan Anthony
Hills Richard E.
Murphy John Anthony
Withington Stafford
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