红外与激光工程, 2017, 46 (12): 1205001, 网络出版: 2018-01-19   

应用于高速平面激光诱导荧光的激光器研究

Study on laser for applications in high-speed planar laser induced fluorescence
作者单位
1 哈尔滨工业大学 理学院 物理系, 黑龙江 哈尔滨 150001
2 哈尔滨工业大学 可调谐激光技术重点实验室, 黑龙江 哈尔滨 150080
摘要
平面激光诱导荧光是一种高时间和空间分辨率、非接触的激光诊断技术, 是研究流场和燃烧场的重要技术手段。高速PLIF技术相对于现有的低速PLIF技术具有众多优势, 高超声速飞行器、燃烧场、空气声学和等离子体等领域的发展, 需要重复频率在10 kHz以上的高速PLIF技术对湍流场和反应场进行研究, 以掌握其反应过程并进行优化。高重频、大能量脉冲激光器的缺乏是限制高速PLIF技术实现的主要原因。针对高速PLIF技术及其光源的发展状况做了全面的综述, 对比说明了不同类型激光光源的特点, 并对脉冲串激光器作为高速激光诊断光源的前景进行了展望。
Abstract
Planar laser induced fluorescence (PLIF) is a significant method to study the characteristics of flow field and combustion, owing to the advantages of non-conduction, high spatial and temporal resolutions. In comparison with existing low-speed PLIF, high-speed PLIF has a lot of advantages. High-speed PLIF with repetition rate higher than 10 kHz is necessary to study turbulent and reacting flows in order to capture the dynamics that governs the underlying physics in the fields such as supersonic and hypersonic flows, combustion and plasma physics. The lack of laser sources with high repetition rate and high pulse energy significantly limits the development of high-speed PLIF. A comprehensive overview for the development and the latest achievements of high-speed PLIF and the employed laser sources was given in this article. The characteristics of different laser sources were compared, and the pulse-burst technique was believed to be a promising source for high-speed PLIF technique. The development of pulse-burst laser used as the laser source in high-speed PLIF was predicted.

李旭东, 周益平, 闫仁鹏, 潘虎, 陈德应, 周忠祥. 应用于高速平面激光诱导荧光的激光器研究[J]. 红外与激光工程, 2017, 46(12): 1205001. Li Xudong, Zhou Yiping, Yan Renpeng, Pan Hu, Chen Deying, Zhou Zhongxiang. Study on laser for applications in high-speed planar laser induced fluorescence[J]. Infrared and Laser Engineering, 2017, 46(12): 1205001.

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