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强激光到靶总能量测量对激光系统性能评价十分重要。然而，到靶光斑具有功率密度高、时空分布不均匀及光斑尺寸大等特点，给总能量准确测量带来极大挑战。瞄准大面积光斑总能量高精度测量需求，本工作发展了平板量热技术。首先，开展了激光加热平板物理过程研究，得到了温度场变化解析解，并基于此发现：均匀排布的阵列温度传感器可显著缩短调整段时间；然后，针对传统能量反演算法中需要预热吸收体和可能受非均匀温度影响的问题，提出了改进方法；最后，研制了平板测量装置，开展了激光标定实验，得到了系统的重复性2.7%和线性度0.3%，合成标准不确定度为4%。本文为平板测量技术在到靶总能量测量中奠定了理论基础，对装置的优化设计、好用易用性提升、能量高精度反演具有重要参考价值。The measurement of total energy on the target is a critical step in evaluating the performance of high-power laser systems. However, the laser spot on the target exhibits characteristics such as high power density, non-uniform spatial and temporal distribution, and large spot size, which pose significant challenges to accurate total energy measurement. To address the demand for high-precision measuring total energy of a large spot, this work focuses on the plate energy measurement technology. First, we investigated the physical processes of laser-heated plates and obtained analytical solutions, demonstrating that uniformly arranged temperature sensor arrays can shorten the relaxation period. Second, to overcome the limitations of traditional energy inversion algorithms—such as the need to preheat the absorber and potential non-uniform temperature effects—we proposed correction methods. The non-preheated calorimetry method eliminates the requirement that the absorber temperature must be higher than the ambient temperature during the initial rating period. It iteratively optimizes ambient temperature and heat loss coefficients based on corrected temperature invariance. Additionally, a non-uniform temperature correction algorithm is applied to minimize errors caused by limited sensor sampling rates by reconstructing the temperature curve during injection and adjustment periods. Finally, we developed a plate measurement device and conducted laser calibration tests, achieving system repeatability 2.7%, linearity 0.3% and a combined standard uncertainty of 4%. This study establishes a theoretical foundation for flat-plate laser energy measurement technology, providing important insights for optimizing the apparatus design, improving usability, and enabling high-precision energy inversion.
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Keywords:
- Laser parameter measurement /
- Energy /
- Flat-plate calorimetry /
- Energy inversion algorithm
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[1] Williams P A, Spidell M T, Hadler J A, Gerrits T, Koepke A, Livigni D, Stephens M S, Tomlin N A, Shaw G A, Splett J D, Vayshenker I, White M G, Yung C S, Lehman J H 2020 Metrologia 57 015001
[2] Wei Jifeng, Hu Xiaoyang, Zhang Kai, Sun Liqun 2017 Infrared and Laser Engineering 46 706004 (in Chinese) [魏继锋，胡晓阳，张凯，孙利群 2017 红外与激光工程 46 706004]
[3] Xu Xiaojun 2020 High power laser and particle beams 32 30 (in Chinese) [许晓军 2020 强激光与粒 子束 32 30]
[4] Andrews L C, Phillips R L 2005 Laser Beam Propagation through Random Media. 2nd edn. (Bellingham, Wash: SPIE Press)
[5] Du Peibing, Liu Yu, Chen Zhihua, Guan Qi, Xia Hongfu, Cai Libing 2021 Modern Applied Physics 12 020301 (in Chinese) [杜配冰，刘钰，陈志华，关奇，夏洪富，蔡利兵 2021 现代应用物理 12 020301]
[6] Lazov L, Karadzhov T 2021 ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 173
[7] Sprangle P, Hafizi B, Ting A, Fischer R 2015 Applied Optics 54 F201
[8] Li X, Hadler J, Cromer C, Lehman J, Dowell M 2008 High power laser calibrations at NIST. Tech. Rep. NIST SP 250-77, National Institute of Standards and Technology, Gaithersburg, MD
[9] Luan Kunpeng, Zhao Haichuan, Wu Junjie, Wang Ping, Cui Meng, Wu Yong, Wang Dahui, Shi Yubin, Chen Shaowu, Yang Pengling, Wu Lixiong 2022 Modern Applied Physics 13 030302 (in Chinese) [栾 昆鹏，赵海川，武俊杰，王平，崔萌，吴勇，王大辉，师宇斌，陈邵武，杨鹏翎，吴丽雄 2022 现代 应用物理 13 030302]
[10] 电子科技大学, 西安
[11] Guan Wenlu, Tan Fengfu, Dou Zaihong, Luo Jie, Qin Laian, He Feng, Zhang Silong, Wu yi 2022 Acta Optics Sinica 42 0214002 (in Chinese) [管雯璐，谭逢富，侯再红，罗杰，秦来安，何枫，张巳龙，吴毅 2022 光学学报 42 0214002]
[12] Higgs C, Grey P C, Mooney J G, Hatch R E, Carlson R R, Murphy D V 1999 In Steiner T D, Merritt P H, editors, AeroSense ’99 (Orlando, FL), pp 216–226
[13] Yang P, Feng G, Wang Q, Wang J, Cheng J 2007 In Zhou L, editor, International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007 (Beijing, China), p 66220T
[14] Pang M, Rong J, Zhou S, Wu J, Fan G, Zhang W, Hu X 2014 Review of Scientific Instruments 85 013105
[15] Gunn SR 1973 Journal of Physics E: Scientific Instruments 6 105
[16] Lei Junjie, Wang Liang, Duan Yuanyuan, Gu Heng, Liu Xiaoying 2015 Electronic Design Engineering 23 138 (in Chinese) [雷俊杰，王亮，段园园，谷衡，刘晓英 2015 电子设计工程 23 138]
[17] Tang Ling, Li Xiaoqun, Dang Zhao, Wang Chao, Chen Ji 2010 Electronic measurement technology 33 5 (in Chinese) [唐菱，李小群，党钊，王超，陈骥 2010 电子测量技术 33 5]
[18] Fang Bolang, Han Jing, Wang Dahui, Feng Gang, Tao Bo, Wang Zhenbao, Wang Jianguo 2022 Modern Applied Physics 13 040301 (in Chinese) [方波浪，韩静，王大辉，冯刚，陶波，王振宝，王建国 2022 现代应用物理 13 040301]
[19] West E, Case W, Rasmussen A, Schmidt L 1972 Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 76A 13
[20] West E D, Churney K L 1970 Journal of Applied Physics 41 2705
[21] Mejia D, Moreno A, Arbelaiz A, Posada J, Ruiz-Salguero O, Chopitea R 2018 Journal of Manufacturing Science and Engineering 140 031006
[22] Jiang H J, Dai H L 2015 International Journal of Heat and Mass Transfer 82 98
[23] Mejia-Parra D, Moreno A, Posada J, Ruiz-Salguero O, Barandiaran I, Poza J C, Chopitea R 2019 Mathematics and Computers in Simulation 166 177
[24] Johnson E G 1977 Applied Optics 16 2315
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