Raman backscattering (RBS) in plasma is the basis of plasma-based amplifiers and is important in laser-driven fusion experiments. Using theoretical model and particle-in-cell simulations, we show that saturation can arise from nonlinearities due to coupling between the fundamental and harmonic plasma wave modes for sufficiently intense pump and seed pulses. We present a time-dependent analysis that shows that plasma wave phase shifts reach a maximum close to wavebreaking. The study contributes to a new understanding of RBS saturation for counter-propagating laser pulses. More information on the dataset structure can be found in the README file.
|Date made available||1 Mar 2016|
|Publisher||University of Strathclyde|
|Date of data production||1 Jan 2015|
Raj, G. (Creator), Ersfeld, B. (Contributor), Vieux, G. (Contributor), Yoffe, S. (Contributor), Hur, M. S. (Contributor), Cairns, A. (Contributor), Jaroszynski, D. (Supervisor). (1 Mar 2016). Raman backscattering saturation due to coupling between ωp and 2ωp modes in plasma. University of Strathclyde. dataset(.zip), README(.txt). 10.15129/0d10d9a7-ced8-446c-a65d-09a1bc9e546d