Analysis of a cascade‐pumped 16 μm CO2‐N2 downstream‐mixing gasdynamic laser

Chakravarty, Purandar and Reddy, NM and Reddy, KPJ (1990) Analysis of a cascade‐pumped 16 μm CO2‐N2 downstream‐mixing gasdynamic laser. In: Applied Physics Letters, 57 (9). pp. 852-854.

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Abstract

The generation of a 16 μm laser beam through cascading in a downstream‐mixing CO2 gasdynamic laser is studied. To simulate actual lasing action, a generalized, two‐dimensional, flow‐radiation‐coupled power extraction model for a gasdynamic laser is used. Also, to model the cascade process a new four‐mode CO2‐N2 vibrational kinetic model has been proposed. The steady‐state intensity obtained for an exclusive 9.4 μm transition is of the order of 5×107 W/m2. In the cascade mode of operation the steady‐state intensities for 9.4 and 16 μm transitions of the order of 5×107 W/m2 and 1.0×106 W/m2, respectively, have been obtained.

Item Type:	Journal Article
Publication:	Applied Physics Letters
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	27 Feb 2012 11:36
Last Modified:	27 Feb 2012 11:36
URI:	http://eprints.iisc.ac.in/id/eprint/42978

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