DEPENDENCE OF STIMULATED BRILLOUIN-SCATTERING ON FOCUSING OPTIC F-NUMBER IN LONG-SCALE-LENGTH PLASMAS

Authors
WATT RG COBBLE J DUBOIS DF FERNANDEZ JC ROSE HA DRAKE RP BAUER BS
Citation
Rg. Watt et al., DEPENDENCE OF STIMULATED BRILLOUIN-SCATTERING ON FOCUSING OPTIC F-NUMBER IN LONG-SCALE-LENGTH PLASMAS, Physics of plasmas, 3(3), 1996, pp. 1091-1095
Citations number
24
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
Physics of plasmas → ACNP
ISSN journal
1070664X
Volume
3
Issue
3
Year of publication
1996
Pages
1091 - 1095
Database
ISI
SICI code
1070-664X(1996)3:3<1091:DOSBOF>2.0.ZU;2-Z
Abstract
The onset of stimulated Brillouin scattering (SBS) has been examined b y varying the effective F number (lens focal length/incident beam diam eter) of the optical system used to irradiate a performed 1 mm long, l ongitudinally uniform hydrocarbon (CH) plasma. SBS onset occurs at hig her average laser intensity for smaller F, in qualitative agreement wi th theory. Quantitative comparison between theory and experiment, and implications for the National Ignition Facility [Phys. Plasmas 2, 2480 (1995)] are discussed. (C) 1996 American Institute of Physics.