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Far-infrared CW Raman and laser gain of14NH3

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7 Author(s)
R. Marx ; Technische Universitat Braunschweih, Braunschweig, Germany ; U. Hubner ; I. Abdul-Halim ; J. Heppner
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The FIR Raman and laser gain properties of14NH3optically pumped by the CO2 9R(30) and the N2O 10P(13) laser lines, respectively, have been measured and calculated using the quantum mechanical theory of three-level systems. The laser gain is about two orders of magnitude higher than for usual FIR laser transitions. The Raman gain shows two features characteristic for the two-photon process: extremely high saturation intensity and high pressure maximum. Very satisfactory agreement between theoretically calculated and experimentally measured gain properties is found.

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IEEE Journal of Quantum Electronics  (Volume:17 ,  Issue: 6 )