Features of the structure of the harmonics 2. omega. /sub 0/ and 3. omega. /sub 0//2 generated in a laser plasma

Journal Article · Sat Nov 20 04:00:00 EST 1976 · JETP Lett. (USSR) (Engl. Transl.); (United States)

OSTI ID:7256077

Aleksandrov, V V; Vikharev, V D; Zotov, V P; Koval'skii, N G; Pergament, M I

Results are presented of experimental investigations of the spectral structure, the angular dependences, and the temporal characteristics of the emission of the harmonics 2..omega../sub 0/ and 3..omega../sub 0//2 generated in a plasma produced when flat targets are irradiated by a powerful light beam from a neodymium laser in the intensity range 2 x 10/sup 13/--2 x 10/sup 14/ W/cm/sup 2/. The study of the nonlinear mechanisms of the interaction of the radiation with the plasma is of great interest for research on laser-ignited controlled thermonuclear fusion. Most papers devoted to this question deal with decay (parametric) instabilities and generation of the harmonics and subharmonics of the laser radiation. The situation here, however, is not perfectly clear, and the need for comprehensive experimental investigations in a wide range of conditions is perfectly obvious.

• OSTI ID: 7256077
• Journal Information: JETP Lett. (USSR) (Engl. Transl.); (United States), Journal Name: JETP Lett. (USSR) (Engl. Transl.); (United States) Vol. 24:10; ISSN JTPLA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700106* -- Fusion Energy-- Plasma Research-- Plasma Production-- (-1987)
700107 -- Fusion Energy-- Plasma Research-- Instabilities
HARMONICS
INSTABILITY
LASER-PRODUCED PLASMA
LASERS
NEODYMIUM LASERS
NONLINEAR PROBLEMS
OSCILLATIONS
PLASMA
PLASMA DENSITY
PLASMA INSTABILITY
SOLID STATE LASERS
THERMONUCLEAR REACTORS