Throughput of diffraction-limited field optics systems for infrared and millimetric telescopes.
Telescopes for submillimeter wavelengths have point spread functions some millimeters or centimeters in diameter, but the detectors may be only fractions of a millimeter in size. Thus a field aperture and collecting optics are needed. We show how to optimize the aperture by a calculation of the effects of diffraction on signal and resolution as a function of size of the collecting aperture. Our calculations are compared to experimental results from observations of Mars at submillimeter wavelengths.
Hildebrand
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RH
University of Chicago, Enrico Fermi Institute, Chicago, Illinois 60637, USA.
Winston
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