Visualization of Laser Pulse Amplification by Raman Backscattering
라만 후방향산란을 이용한 레이저 펄스 증폭 가시화
-
Lee Hae-June
(Korea Electrotechnology Research Institute Center for Advanced Accelerators)
;
- Kim Jin-Cheol (Pohang University of Science and Technology) ;
- Kim Changbum (Korea Electrotechnology Research Institute) ;
-
Kim Guang-Hoon
(Korea Electrotechnology Research Institute)
;
-
Kim Jong-Uk
(Korea Electrotechnology Research Institute)
;
- Suk Hy-yong (Korea Electrotechnology Research Institute)
- Published : 2002.11.01
Abstract
A one-dimensional fluid model has been established for Raman amplification of a short laser pulse in a plasma by a counter-propagating pump. The laser pulse is amplified with a large gain and also may be compressed by nonlinear three-wave Interactions. The spatiotemporal evolutions of the seed and the pump pulses were visualized for linear and nonlinear regimes, and the transition from regular to chaotic behavior of subsidiary pulses was investigated with variation of pump intensity.
Keywords