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8 March 2021 Minimizing the risk of laser damage due to transverse stimulated Raman scattering in large-aperture KDP/DKDP plates
Tanya Z. Kosc, Terrence J. Kessler, Hu Huang, Stavros G. Demos
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Proceedings Volume 11666, High Power Lasers for Fusion Research VI; 116660A (2021) https://doi.org/10.1117/12.2583864
Event: SPIE LASE, 2021, Online Only
Abstract
The transverse spontaneous Raman scattering in a configuration analogous to the geometry of a large-aperture potassium dihydrogen phosphate polarization rotator plate for inertial confinement fusion-class lasers is investigated. The experimental setup enabled effectively measuring the transverse Raman scattering in 360° around the beam propagation direction for any crystal optic-axis (OA) alignment. Results reveal the angular dependence of the transverse Raman scattering signal as a function of (1) the angle between the OA and the pump-beam propagation and (2) the angle of the X-Y axis around the OA. These results enable the consideration of optimal crystal cut designs for specific applications.
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Tanya Z. Kosc, Terrence J. Kessler, Hu Huang, and Stavros G. Demos "Minimizing the risk of laser damage due to transverse stimulated Raman scattering in large-aperture KDP/DKDP plates", Proc. SPIE 11666, High Power Lasers for Fusion Research VI, 116660A (8 March 2021); https://doi.org/10.1117/12.2583864
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KEYWORDS
Crystals
Raman scattering
Potassium
Laser crystals
Polarization
Crystal optics
Fusion energy
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