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5 March 2018 Research on the liquid coolant applied in the high repetition rate slab amplifier
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Proceedings Volume 10710, Young Scientists Forum 2017; 107104A (2018) https://doi.org/10.1117/12.2317679
Event: Young Scientists Forum 2017, 2017, Shanghai, China
Abstract
High repetition rate slab amplifier (HRRSA) is extraordinarily indispensable for the future fusion power plant, ultra-short laser, laser weapon, and so on. Thermal controlling is the decisive factor for the repetition rate and the output energy of the slab amplifier. For larger clear aperture HRRSA, flash-lamp pumped slab amplifier based on neodymium phosphate glass (Nd:glass) is chosen with the liquid cooling. The liquid coolant circulates across the Nd:glass and takes off the thermal induced in the pumping process. A novel liquid coolant (Series A) whose refractive index is the same with Nd:glass is proposed to alleviate the wavefront distortion induced by thermal. The chemical stability of the liquid coolant under high energy flash-lamp irradiation with 200 shots and under the irradiation of a 1053nm laser with 19 hours and 37 hours are experimented. The results show that the chemical stability of the liquid coolant is stable under irradiation.
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Bingyan Wang, Yangshuai Li, Panzheng Zhang, Li Wang, Yanli Zhang, Tao Feng, Qiong Zhou, Qiang Liu, Haiyuan Li, Xu Zhang, Shenlei Zhou, Weixin Ma, Jian Zhu, and Jianqiang Zhu "Research on the liquid coolant applied in the high repetition rate slab amplifier", Proc. SPIE 10710, Young Scientists Forum 2017, 107104A (5 March 2018); https://doi.org/10.1117/12.2317679
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