Amplification of an Ultra Short Pulse Laser by Stimulated Raman Scattering in a Low density Plasma Relevant to Pulse Compression

Journal Article · Wed Feb 08 00:00:00 EST 2006 · Physics of Plasmas

OSTI ID:950619

Kirkwood, R K; Dewald, E L; Niemann, C; Meezan, N B; Wilks, S C; Price, D W; Landen, O L; Wurtele, J; Charman, A E; Lindberg, R; Fisch, N J; Malkin, V M; Valeo, E O

Experiments are described in which a 1mJ, 1ps, 1200 nm probe laser beam is amplified by interaction with an intersecting 350 J, 1ns, 1054 nm pump beam in a low density ({approx} 9 x 10{sup 24}/m{sup 3}) plasma. The transmission of the probe beam is observed to be enhanced by >{approx} 25 x when the plasma is near the resonant density for stimulated Raman scattering (SRS), as compared with measured transmissions at wavelengths just above the resonant value. The amplification is observed to increase rapidly with increases in both pump intensity and plasma density.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 950619
• Report Number(s): UCRL-JRNL-219578; PHPAEN; TRN: US0902018
• Journal Information: Physics of Plasmas, Vol. 14, Issue 11; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
70 PLASMA PHYSICS AND FUSION
AMPLIFICATION
COMPRESSION
LASERS
PLASMA
PLASMA DENSITY
PROBES
SCATTERING
WAVELENGTHS