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31 January 2020 Research on point supporting and clamping process of large aperture frequency-doubling crystal
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Proceedings Volume 11427, Second Target Recognition and Artificial Intelligence Summit Forum; 114274H (2020) https://doi.org/10.1117/12.2559788
Event: Second Target Recognition and Artificial Intelligence Summit Forum, 2019, Changchun, China
Abstract
Large aperture KDP crystals are mainly used in the final optic assembly of inertial confinement fusion facility to change the frequency of laser light incident into them. For the optimization of the surface of large aperture KDP crystals, this paper proposes an assembly scheme based on point support and calculates the surface state of KDP crystal under different installation postures and different preload force distributions and magnitudes by numerical simulation. The results show that the assembly scheme can effectively reduce the surface distortion of KDP crystal after assembly. For example, in the horizontal state, the surface PV value of the KDP crystal can be controlled below 5um and the frequency conversion efficiency can reach 83.7% after assembly.
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Dongya Chu M.D., Zheng Zhang M.D., Lang Ye Sr., Weifeng Du Sr., Xu Xu Sr., and Hui Wang Sr. "Research on point supporting and clamping process of large aperture frequency-doubling crystal", Proc. SPIE 11427, Second Target Recognition and Artificial Intelligence Summit Forum, 114274H (31 January 2020); https://doi.org/10.1117/12.2559788
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