Interactions of laser speckles due to kinetic stimulated Raman scattering
Abstract
We examine the possible interactions of two laser speckles due to the exchange of electrons and waves generated by stimulated Raman scattering (SRS) using two-dimensional particle-in-cell simulations. By controlling the relative polarization, spatial placement, and timing of two laser speckles, one above-threshold and one below-threshold for SRS, we isolate and characterize SRS growth stimulated in below-threshold speckles. SRS in the below-threshold speckle is shown to be triggered by energetic electrons, scattered light waves, and scattered plasma waves generated from the above-threshold speckle. As a result, we show that scattered light or electrons alone can be an intermediary trigger for SRS.
- Publication Date:
- Research Org.:
- Univ. of California, San Diego, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1634202
- Alternate Identifier(s):
- OSTI ID: 1573115
- Grant/Contract Number:
- NA0003842; SC0019010
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 26; Journal Issue: 11; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Winjum, B. J., Tableman, A., Tsung, F. S., and Mori, W. B. Interactions of laser speckles due to kinetic stimulated Raman scattering. United States: N. p., 2019.
Web. doi:10.1063/1.5110513.
Winjum, B. J., Tableman, A., Tsung, F. S., & Mori, W. B. Interactions of laser speckles due to kinetic stimulated Raman scattering. United States. https://doi.org/10.1063/1.5110513
Winjum, B. J., Tableman, A., Tsung, F. S., and Mori, W. B. Tue .
"Interactions of laser speckles due to kinetic stimulated Raman scattering". United States. https://doi.org/10.1063/1.5110513. https://www.osti.gov/servlets/purl/1634202.
@article{osti_1634202,
title = {Interactions of laser speckles due to kinetic stimulated Raman scattering},
author = {Winjum, B. J. and Tableman, A. and Tsung, F. S. and Mori, W. B.},
abstractNote = {We examine the possible interactions of two laser speckles due to the exchange of electrons and waves generated by stimulated Raman scattering (SRS) using two-dimensional particle-in-cell simulations. By controlling the relative polarization, spatial placement, and timing of two laser speckles, one above-threshold and one below-threshold for SRS, we isolate and characterize SRS growth stimulated in below-threshold speckles. SRS in the below-threshold speckle is shown to be triggered by energetic electrons, scattered light waves, and scattered plasma waves generated from the above-threshold speckle. As a result, we show that scattered light or electrons alone can be an intermediary trigger for SRS.},
doi = {10.1063/1.5110513},
journal = {Physics of Plasmas},
number = 11,
volume = 26,
place = {United States},
year = {Tue Nov 05 00:00:00 EST 2019},
month = {Tue Nov 05 00:00:00 EST 2019}
}
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