| 采用扫描式漫反射成像法的激光强度分布测量装置 |
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| 引用本文： | 王飞,徐作冬,戢运峰,姜畅.采用扫描式漫反射成像法的激光强度分布测量装置[J].红外与激光工程,2014,43(7):2219-2222. |
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| 作者姓名： | 王飞 徐作冬 戢运峰 姜畅 |
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| 作者单位： | 1.西北核技术研究所激光与物质相互作用国家重点实验室,陕西西安 710024 |
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| 基金项目： | 激光与物质相互作用国家重点实验室创新基金(SKL111102) |
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| 摘 要： | 提出了一种基于扫描式漫反射成像法测量激光强度时空分布的装置。测量装置主要由轮辐式扫描取样机构、同步信号发生器和CCD 成像系统组成。装置使用动态的取样旋臂替代静态的漫反射屏，在保留漫反射成像法优点的前提下用取样的方式进行测量，具有测量分辨率高、取样衰减倍率较大、抗激光破坏能力强以及可在线测量等优点。与漫反射屏成像法的比对测量实验表明:两种测量方法的测量结果具有较高的一致性。扫描式漫反射成像法实现了对光斑的在线测量，可用于强激光辐照效应实验中激光强度分布的实时监测。
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| 关 键 词： | 光斑测量 成像法 漫反射 扫描法 |
| 收稿时间： | 2013-11-18 |
Measurement system for laser intensity distribution based on scanning diffuse reflection imaging |
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| Affiliation: | 1.State Key Laboratory of Laser Interaction with Matter of Northwest Institute of Nuclear Technology,Xi'an 710024,China |
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| Abstract: | A measurement system based on scanning diffuse reflection imaging was developed for space-time distribution of laser intensity. The measurement system mainly consisted of spoke-shaped sampling structure, synchronous signal generator and CCD imaging system. Instead of the traditional static diffuse reflecting screen, sampling was realized with several spoke-shape dynamic rotating arms, which was feasible for online measurement of laser intensity distribution. Besides high resolution of the traditional method, there were more advantages in this scanning diffuse reflection imaging method, e.g.high laser attenuation ratio, strong power against laser destruction, simple structure and better maneuverability. Comparative experiments with the diffuse reflecting screen imaging method demonstrate high correspondency between the two methods. This system can be applied in the real-time monitor of laser intensity distribution in laser irradiation effect experiments. |
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