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Second harmonic generation efficiency affected by radiation force of a high-energy laser beam through stress within a mounted potassium dihydrogen phosphate crystal
Author(s): Ruifeng Su; Mingzhi Zhu; Zhan Huang; Baoxu Wang; Wenkai Wu
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Paper Abstract

Influence of radiation force of a high-energy laser beam on the second harmonic generation (SHG) efficiency through stress within a mounted potassium dihydrogen phosphate (KDP) crystal is studied, as well as an active method of improving the SHG efficiency by controlling the stress is proposed. At first, the model for studying the influence of the radiation force on the SHG efficiency is established, where the radiation force is theoretically analyzed, the stress caused by the radiation force is theoretically analyzed and numerically calculated using the finite-element method, and the influence of the stress on the SHG efficiency is theoretically analyzed. Then, a method of improving the SHG efficiency by controlling the stress through adjusting the structural parameters of the mounting set of the KDP crystal is examined. It demonstrates that the radiation force causes stress within the KDP crystal and further militates against the SHG efficiency; however, the SHG efficiency could be improved by controlling the stress through adjusting the structural parameters of the mounting set of the KDP crystal.

Paper Details

Date Published: 10 January 2018
PDF: 5 pages
Opt. Eng. 57(1) 015106 doi: 10.1117/1.OE.57.1.015106
Published in: Optical Engineering Volume 57, Issue 1
Show Author Affiliations
Ruifeng Su, China Academy of Engineering Physics (China)
Mingzhi Zhu, China Academy of Engineering Physics (China)
Zhan Huang, China Academy of Engineering Physics (China)
Baoxu Wang, China Academy of Engineering Physics (China)
Wenkai Wu, China Academy of Engineering Physics (China)


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