基于神光Ⅲ原型的全孔径背反诊断系统光路优化设计

丁永坤 ding yongkun, 谷渝秋 gu yuqiu,张小丁 zhang xiaoding,刘永刚 liu yonggang,李志超 li zhichao,李三伟 li sanwei,杨正华 yang zhenghua,刘慎业 liu shenye,蒋小华 jiang xiaohua,王峰 wang feng,焦春晔 jiao chunye,陈铭 chen ming

Acta Optica Sinica（2011）

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Abstract

对神光Ⅲ原型复杂激光光路条件下的背反诊断系统进行了光路改造优化设计.引进菲涅耳透镜和采用真空空间滤波方式,对激光打靶光路终端光学组件中镜片反射的杂散光与非线性效应导致的背反信号进行空间分离,解决了杂散光与非线性散射光同光轴问题.并在神光Ⅲ原型装置上进行了全孔径背反系统实验验证,为激光靶耦合能量平衡精密诊断提供了可能条件和重要参考.

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Key words

nonlinearity,full aperture backscattering,Fresnel lens,optical design,stimulated brillouin scattering,stimulated raman scattering,energy balance

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