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Proceedings Paper

Absolute Two-Photon Excitation Cross-Sections In NO
Author(s): J. Burris; T. McGee; T. McIlrath
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Paper Abstract

A technique has been developed which allows the determination of a two-photon absorption cross-section to be made relative to the Raman scattering cross-section in nitrogen. Spatial and temporal effects associated with the lasers are ratioed out to give a result in-dependent of laser parameters. The necessary theory to extract a cross-section from the measured ratio of a Coherent Anti-Stokes Raman Scattering (CARS) signal in N2 to a four-wave mixing signal in NO has been developed. The technique has been demonstrated on the R22 S12(J" = 9 1/2) line in NO and a cross-section of (2.9 + 1.8) x 10-49 cm4-s was determined. This technique appears to be applicable to a number of other diatomic molecules.

Paper Details

Date Published: 28 June 1984
Proc. SPIE 0482, Applications of Laser Chemistry & Diagnostics, (28 June 1984); doi: 10.1117/12.943097
Show Author Affiliations
J. Burris, NASA/Goddard Space Flight Center (United States)
T. McGee, NASA/Goddard Space Flight Center (United States)
T. McIlrath, University of Maryland (United States)

Published in SPIE Proceedings Vol. 0482:
Applications of Laser Chemistry & Diagnostics
Albert B. Harvey, Editor(s)

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