Noise sources and competition between stimulated Brillouin and Raman scattering: A one-dimensional steady-state approach
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China)
A 1D steady-state model is developed to deal with stimulated scattering processes. The volume and boundary noise sources for scattered light are discussed in detail. Our results indicate that the boundary noise sources may play a significant role in estimating the reflectivity of stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS). With the capability of our model to deal with broadband scattered light, we find that pump depletion could be the main reason to the anti-correlation between SBS and SRS versus electron density observed in experiments. A simple method is proposed to phenomenologically include the effect of nonlinear saturation mechanisms in our model and reasonable results are obtained.
- OSTI ID:
- 22220615
- Journal Information:
- Physics of Plasmas, Vol. 20, Issue 9; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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