New Techniques and Applications for High Resolution Tunable Submillimeter Spectroscopy

  • H. R. Fetterman
  • W. A. M. Blumberg
Conference paper
Part of the Springer Series in Optical Sciences book series (SSOS, volume 30)


Recent advances in submillimeter detectors [1] and sources [2] have opened up new possibilities for high resolution spectroscopy in the 300 to 3000 GHz regime (10 to 100 cm−1). The techniques described here are based on the development of GaAs Schottky diode detectors mounted in a corner-cubeconfiguration, and upon new optically pumped cw submillimeter lasers. The diodes, in conjunction with the lasers have been used to make high sensitivity heterodyne radiometers and receivers suitable for high resolution spectroscopy. In addition, the same Schottky diode system has been utilized for efficient sideband modulation of laser signals. This use of the diode permits tunable radiation to be generated ± 1 cm−1 about any submillimeter laser line.


Filter Bank Schottky Diode Heterodyne Detector High Resolution Spectroscopy Ellipsoidal Mirror 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1981

Authors and Affiliations

  • H. R. Fetterman
    • 1
  • W. A. M. Blumberg
    • 1
  1. 1.Lincoln LaboratoryMassachusetts Institute of TechnologyLexingtonUSA

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