High Resolution Far Infrared Spectroscopy

  • L. R. Zink
  • M. Prevedelli
  • K. M. Evenson
  • M. Inguscio
Chapter
Part of the NATO ASI Series book series (NSSB, volume 241)

Abstract

The far infrared (FIR) spectral region (which we will define as 0.3 – 10 THz [1mm to 30 μm]) plays an important role in molecular and atomic spectroscopy. The pure rotational transitions of light molecules, for example diatomic hydrides, occur in this region; FIR measurements provide the only accurate means of determining their rotational structure and associated characteristics such as line strengths, pressure broadening parameters, and permanent electric dipole moments. Heavier molecules can also be observed in the FIR. Their rotational transitions in this region involve high quantum numbers and therefore small but important centrifugal distortion effects can be measured. In atoms, transitions between fine structure levels as well as metastable levels occur at FIR frequencies.

Keywords

Phase Sensitive Detection Permanent Electric Dipole Moment Fine Structure Level High Quantum Number Laser Magnetic Resonance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • L. R. Zink
    • 1
  • M. Prevedelli
    • 1
  • K. M. Evenson
    • 1
    • 2
  • M. Inguscio
    • 1
  1. 1.European Laboratory for Nonlinear Spectroscopy (LENS)FlorenceItaly
  2. 2.National Institute of Standards and Technology (NIST)BoulderUSA

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