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Quenching of two-plasmon decay and stimulated-Raman-scattering instabilities by profile modification

Journal Article · · Phys. Fluids; (United States)
DOI:https://doi.org/10.1063/1.864084· OSTI ID:5537885
The development of the electron density distribution in a CO/sub 2/-laser irradiated underdense N/sub 2/ gas jet is investigated interferometrically and is correlated to the observation of fast electrons generated by the two-plasmon decay and stimulated-Raman-scattering instabilities. During the 2 nsec laser pulse the quarter critical density scale length initially increases but soon ponderomotive forces steepen the profile resulting in a quenching of the fast electron emission.
Research Organization:
Department of Physics, University of British Columbia, Vancouver, British Columbia, Canada, V6T 1A6
OSTI ID:
5537885
Journal Information:
Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 26:11; ISSN PFLDA
Country of Publication:
United States
Language:
English