Backscatter reduction using combined spatial, temporal, and polarization beam smoothing in a long-scale-length laser plasma

Authors
Moody, JD MacGowan, BJ Rothenberg, JE Berger, RL Divol, L Glenzer, SH Kirkwood, RK Williams, EA Young, PE
Citation
Jd. Moody et al., Backscatter reduction using combined spatial, temporal, and polarization beam smoothing in a long-scale-length laser plasma, PHYS REV L, 86(13), 2001, pp. 2810-2813
Citations number
36
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
13
Year of publication
2001
Pages
2810 - 2813
Database
ISI
SICI code
0031-9007(20010326)86:13<2810:BRUCST>2.0.ZU;2-T
Abstract
Spatial, temporal, and polarization smoothing schemes are combined for the first time to reduce to a few percent the total stimulated backscatter of a NIF-like probe laser beam (2 x 10(15) W/cm(2), 351 nm, f/8) in a long-scal e-length laser plasma. Combining temporal and polarization smoothing reduce s simulated Brillouin scattering and simulated Raman scattering (SRS) up to an order of magnitude although neither smoothing scheme by itself is unifo rmly effective. The results agree with trends observed in simulations perfo rmed with the laser-plasma interaction code F3D simulations.