All-Aluminum Optical System For A Large Cryogenically Cooled Far Infrared Echelle Spectrometer

E. F. Erickson; S. Matthews; G. C. Augason; J. R. Houck; M. O. Harwit; D. M. Rank; M. R. Haas

doi:10.1117/12.944987

1 February 1985 All-Aluminum Optical System For A Large Cryogenically Cooled Far Infrared Echelle Spectrometer

E. F. Erickson, S. Matthews, G. C. Augason, J. R. Houck, M. O. Harwit, D. M. Rank, M. R. Haas

Proceedings Volume 0509, Cryogenic Optical Systems and Instruments I; (1985) https://doi.org/10.1117/12.944987
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

Pioneering observations of far infrared lines from astronomical sources gave been made possible in the past few years by NASA's Kuiper Airborne Observatory (KAO). This is primarily because spectroscopy from ground based sites in the wavelength region from about 20 to 350 microns is precluded by telluric water vapor absorption. Lines in this wavelength range characterize all the phases - molecular, neutral atomic, and ionized - of the inter-stellar gas. They provide both unique informatio2 and information complementary to that available from measurements at other wavelengths.

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E. F. Erickson, S. Matthews, G. C. Augason, J. R. Houck, M. O. Harwit, D. M. Rank, and M. R. Haas "All-Aluminum Optical System For A Large Cryogenically Cooled Far Infrared Echelle Spectrometer", Proc. SPIE 0509, Cryogenic Optical Systems and Instruments I, (1 February 1985); https://doi.org/10.1117/12.944987

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