| 神光Ⅱ激光装置的全口径背向散射测量系统 |
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| 引用本文： | 王传珂,蒋小华,王哲斌,刘永刚,李三伟,李文洪,刘慎业.神光Ⅱ激光装置的全口径背向散射测量系统[J].强激光与粒子束,2010,22(8). |
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| 作者姓名： | 王传珂 蒋小华 王哲斌 刘永刚 李三伟 李文洪 刘慎业 |
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| 作者单位： | 1. 中国工程物理研究院 激光聚变研究中心， 四川 绵阳 621900; 2. 中国工程物理研究院 惯约实施管理中心， 四川 绵阳 621900 |
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| 基金项目： | 国家高技术发展计划项目 |
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| 摘 要： | 报道了基于神光Ⅱ激光装置的全口径背向散射测量系统。系统通过激光聚焦透镜收集激光等离子体相互作用产生的散射光;两个热能量卡计分别测量波长348~354 nm范围的受激布里渊散射和波长400~700 nm范围的受激拉曼散射产生的散射光。该系统可以测量散射光的能量、功率和光谱图像,提供优于0.5 nm光谱分辨和10 ps时间分辨的光谱物理信息。同时采用PIN二极管阵列对聚焦透镜外侧附近的近背向散射光信息进行测量。
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| 关 键 词： | 全口径背向散射 激光等离子体 受激布里渊散射 受激拉曼散射 |
| 收稿时间： | 1900-01-01; |
Full-aperture backscatter station on Shenguang-ⅡLaser Facility |
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| Wang Chuanke,Jiang Xiaohua,Wang Zhebin,Liu Yonggang,Li Sanwei,Li Wenhong,Liu Shenye.Full-aperture backscatter station on Shenguang-ⅡLaser Facility[J].High Power Laser and Particle Beams,2010,22(8). |
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| Authors: | Wang Chuanke Jiang Xiaohua Wang Zhebin Liu Yonggang Li Sanwei Li Wenhong Liu Shenye |
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| Institution: | 1. Research Center of Laser Fusion, CAEP, P. O. Box 919-986, Mianyang 621900, China; 2. Management Center of Laser Fusion, CAEP, P. O. Box 919-919, Mianyang 621900, China |
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| Abstract: | Full-aperture backscatter station (FABS) installed on Shenguang-ⅡLaser Facility is reported. This diagnostic is a spatially averaged mix of light from all of the laser-plasma interactions in the field of view collected by the laser beam focusing lens. Lights in two different wavelength ranges (348～354 nm and 400～700 nm) corresponding to stimulated Brillouin and stimulated Raman backscattering are measured by two calorimeters. The energy, power, and spectrum of backscattered light can be given respectively. The time-resolved spectra will be determined with a goal of SRS temporal response with 10 ps resolution and dimensional response with 0.5 nm resolution. Near backscattered light outside focusing lens is diagnosed based on an array of PIN diodes. |
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| Keywords: | laser-produced plasma stimulated Brillouin backscattering stimulated Raman backscattering |
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