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This paper describes a new multi-layer complex liquid-cooled Si mirror with 3 cooling ducts in Archimedes spirals. Utilizing the ANSYS program, the structure of the mirror is optimized and the thermal deformation model of the mirror is simulated. The simulation results show that the mirror has the following advantages:very small amount of surface deformation, uniform distribution of temperature and surface deformation,and fast surface shape restoration. The results of the experiments of thermal deformation and the surface restoration are accurately mapped to the simulation results. 相似文献
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给出的同轴引射加抽气联合式气动窗口,采用环形喷嘴可调喉道面积和在腔室内装配有带节流小孔的多孔板结构,并在对该窗口进行了实验研究的基础上,报导了最近的工作,研制成功全自动远程操作控制系统,实现了阀门开度随气瓶内压力变化而自我迅速调节的功能,保证了气动窗口的密封性能和输出光束的光学质量,同时可由单瓶供气实现数十次工作的要求。在最低密封压力为0.67KPa时,耗气量为35g/s,strehl比达到0.98,在高功率氧碘化学激光器进行了联机试验,获得了满意效果。 相似文献
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This paper describes a new multi-layer complex liquid-cooled Si mirror with 3 cooling ducts in Archimedes spirals. Utilizing the ANSYS program, the structure of the mirror is optimized and the thermal deformation model of the mirror is simulated. The simulation results show that the mirror has the following advantages: very small amount of surface deformation, uniform distribution of temperature and surface deformation, and fast surface shape restoration. The results of the experiments of thermal deformation and the surface restoration are accurately mapped to the simulation results. 相似文献
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报道了一个高效率连续波和调Q高重频两种运行方式的Tm,Ho:GdVO4激光器.Tm,Ho:GdVO4晶体尺寸4 mm×4 mm×7 mm,a轴通光,液氮制冷到100 K,由发射中心波长为793 nm的光纤耦合激光二极管端面泵浦.Tm,Ho:GdVO4激光连续波输出功率4.0 W,光光转换效率26%.声光调Q条件下输出平均高功率3.9 W,脉冲重复频率10 kHz,脉冲宽度50 ns. 通过减小声光Q开关的开启时间,激光脉冲宽度由50 ns减小至23 ns.在10 kHz重频下,测量最大脉冲能量0.39 mJ , 峰值功率7.8 kW. 相似文献