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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 7 — Jul. 1, 2005
  • pp: 1461–1470

Hydrazine far-infrared laser lines and assignments: a review

Andrea De Michele, Giorgio Carelli, Giovanni Moruzzi, and Augusto Moretti  »View Author Affiliations


JOSA B, Vol. 22, Issue 7, pp. 1461-1470 (2005)
http://dx.doi.org/10.1364/JOSAB.22.001461


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Abstract

The hydrazine molecule is one of the most prolific far-infrared (FIR) laser sources. We present a complete list of its 268 observed FIR laser emissions excited by the C 12 O 2 16 laser. For each line we report all the available data on the C O 2 pump line, the frequency measurement when available, the wavelength, the optimum operating pressure, the relative intensity, the polarization relative to the pump radiation, and the absorption offset from the C O 2 line center. In spite of the large amount of experimental research performed on the hydrazine laser, only a few papers have reported the assignments of the levels involved in the laser systems. In fact, a systematic assignment of the IR hydrazine absorption spectrum is only at a preliminary stage owing to the complexity of the Hamiltonian of this molecule. We have investigated the possible assignments for all the reviewed FIR laser emissions by comparison with an N 2 H 4 absorption spectrum. We can confirm the assignments for only 37 FIR laser lines belonging to 20 laser systems.

© 2005 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.4130) Lasers and laser optics : Molecular gas lasers
(300.6390) Spectroscopy : Spectroscopy, molecular

Citation
Andrea De Michele, Giorgio Carelli, Giovanni Moruzzi, and Augusto Moretti, "Hydrazine far-infrared laser lines and assignments: a review," J. Opt. Soc. Am. B 22, 1461-1470 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-7-1461

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