The U.C. Berkeley Space Sciences Laboratory and Department of Physics Submillimeter ReceiverThe UCB submm heterodyne receiver is a complete system for high-resolution astronomical spectroscopy in the 350-micron and 450-micron atmospheric windows. This compact system mounts directly at the Cassegrain focus of large optical and IR telescopes. It consists of a laser local oscillator, open structure mixer, quasi-optical coupling system, a broad-band IF system, and an acoustooptical spectrometer. The local oscillator is a 1-m-long submm laser optically pumped by a CO2 laser. The mixer is a quasi-optical corner-cube antenna structure and Schottky diode. The mixer is currently operated at room temperature, and its performance at 77 K is being evaluated. The system noise temperature is less than 7000 K SSB during observations.
Document ID
19870032522
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Harris, A. I. (California Univ. Berkeley, CA, United States)
Jaffe, D. T. (California Univ. Berkeley, CA, United States)
Genzel, R. (California, University Berkeley, United States)