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CASIMIR: a submillimeter heterodyne spectrometer for SOFIA

Edgar, Michael L. and Zmuidzinas, Jonas (2000) CASIMIR: a submillimeter heterodyne spectrometer for SOFIA. In: Airborne Telescope Systems. Proceedings of SPIE. No.4014. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 31-42. ISBN 9780819436399.

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The CAltech Submillimeter Interstellar Medium Investigations Receiver (CASIMIR) is a multichannel, heterodyne spectrometer being developed for the Stratospheric Observatory for Infrared Astronomy (SOFIA). It has a very high resolution, up to a million, over the submillimeter and far-infrared wavelength range of 150 to 600 micrometers , or 2.0 to 0.5 THz. CASIMIR is extremely well suited to the investigation of both the galactic and extragalactic warm, approximately 100 K, interstellar medium. A combination of advanced SIS and Hot Electron Bolometers receivers will be used to cover this frequency range with very high sensitivity. CASIMIR will use only solid state local oscillators, with quasioptical coupling to the mixers. We present a description of the instrument and its capabilities, including detailed discussions of the receivers, local oscillators and IF systems.

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Additional Information:© 2000 Society of Photo-optical Instrumentation Engineers (SPIE). Various subsystems of the CASIMIR instrument are being developed by a number of people at several institutions. At Caltech, the group includes: J. Ward (IF amplifiers), D. Miller (room—temperature IF system), J. Kawamura, A. Karpov, and J. Kooi (SIS mixers), M. Thielman, K. Hickerson, and J. Kooi (receiver electronics), W. Schaal (structural design). N. Erickson at U. Massachussets is responsible for the local oscillator systems. A. Harris at U. Maryland is developing the wideband analog correlation spectrometer backend. D. Hawkins at OVRO is developing the digital correlation spectrometer technology. At JPL, the receiver group led by W. R. McGrath will develop the HEB channels, while the superconducting device group led by H. G. LeDuc fabricates both the SIS and HEB mixers. The CASIMIR science team includes: G. Blake, J. Keene, and T. Phillips (Caltech); Paul Goldsmith (Cornell); Bill Langer (JPL); Mark Morris (UCLA); and Andy Harris (U. Maryland). The development of CASIMIR is supported by the NASA/USRA SOFIA instrument development program.
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Subject Keywords:submillimeter, spectrometer, SOFIA, SIS, HEB
Series Name:Proceedings of SPIE
Issue or Number:4014
Record Number:CaltechAUTHORS:20180725-100535375
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Official Citation:Michael L. Edgar, Jonas Zmuidzinas, "CASIMIR: a submillimeter heterodyne spectrometer for SOFIA", Proc. SPIE 4014, Airborne Telescope Systems, (20 June 2000); doi: 10.1117/12.389129;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88244
Deposited By: Tony Diaz
Deposited On:25 Jul 2018 17:16
Last Modified:16 Nov 2021 00:25

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