Modeling of transverse stimulated Raman scattering in KDP/DKDP in large-aperture plates suitable for polarization control

Huang, Hu; Kosc, Tanya Z.; Kessler, Terrance J.; Demos, Stavros G.

doi:10.1017/hpl.2023.43

Modeling of transverse stimulated Raman scattering in KDP/DKDP in large-aperture plates suitable for polarization control

Journal Article · Wed Jun 14 00:00:00 EDT 2023 · High Power Laser Science and Engineering

DOI:https://doi.org/10.1017/hpl.2023.43· OSTI ID:1995416

^[1]; ^[2]; Kessler, Terrance J. ^[3]; ^[3]

University of Rochester, NY (United States); Laboratory for Laser Energetics, University of Rochester
University of Rochester, NY (United States); Khiram Prototype Works LLC, Rochester, NY (United States)
University of Rochester, NY (United States)

Transverse stimulated Raman scattering (TSRS) in potassium dihydrogen phosphate (KDP) and deuterated potassium dihydrogen phosphate (DKDP) plates for large-aperture, inertial confinement fusion (ICF)-class laser systems is a well-recognized limitation giving rise to parasitic energy conversion and laser-induced damage. The onset of TSRS is manifested in plates exposed to the ultraviolet section of the beam. TSRS amplification is a coherent process that grows exponentially and is distributed nonuniformly in the crystal and at the crystal surfaces. To understand the growth and spatial distribution of TSRS energy in various configurations, a modeling approach has been developed to simulate the operational conditions relevant to ICF-class laser systems. Specific aspects explored in this work include (i) the behavior of TSRS in large-aperture crystal plates suitable for third-harmonic generation and use as wave plates for polarization control in current-generation ICF-class laser system configurations; (ii) methods, and their limitations, of TSRS suppression and (iii) optimal geometries to guide future designs.

View Accepted Manuscript (DOE)

Research Organization:: University of Rochester, NY (United States). Laboratory for Laser Energetics

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003856

OSTI ID:: 1995416

Journal Information:: High Power Laser Science and Engineering, Journal Name: High Power Laser Science and Engineering Vol. 11; ISSN 2095-4719

Publisher:: Cambridge University PressCopyright Statement

Country of Publication:: United States

Language:: English

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47 OTHER INSTRUMENTATION
DKDP
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large-aperture laser systems
laser damage
transverse stimulated Raman scattering

Modeling of transverse stimulated Raman scattering in KDP/DKDP in large-aperture plates suitable for polarization control

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References (14)

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