中国激光, 1998, 25 (3): 265, 网络出版: 2006-10-18   

实现ICF均匀照明的二元光学器件的混合优化设计

Design Binary Optics Elements for ICF Uniform Illumination with Hybrid Optimization Method
作者单位
清华大学精密测试技术及仪器国家重点实验室,北京 100084
摘要
结合模拟退火和遗传算法各自的特点,提出了一种混合算法,用以设计阵列型惯性约束核聚变(ICF)均匀照明系统中二元阵列单元的位相分布。混合算法充分利用了遗传算法的并行性及保留一定历史信息的特性,并用模拟退火的温度参数控制收敛性。模拟运算表明,混合算法具有较高的效率及寻优可靠性。用本算法设计的均匀照明阵列,可以得到顶部均匀性为3.2%(rms)、能量利用率接近90%的焦斑。
Abstract
In this paper, a novel hybrid algorithm which combines SA (simulated annealing) algorithm with GA (genetic algorithm) is used to design binary optics elements for ICF (inertial confinement fusion) uniform illumination. GA, which is a parallel algorithm, reserves historical information for SA, while SA′s parameter, temperature, is used to control GA′s convergence. Simulation calculation shows that the hybrid algorithm is effective and robust. A focal spot with a uniformity 3.2%(rms) and an efficiency approximating to 90% is obtained by this method.
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郑学哲, 王凌, 严瑛白, 金国藩. 实现ICF均匀照明的二元光学器件的混合优化设计[J]. 中国激光, 1998, 25(3): 265. 郑学哲, 王凌, 严瑛白, 金国藩. Design Binary Optics Elements for ICF Uniform Illumination with Hybrid Optimization Method[J]. Chinese Journal of Lasers, 1998, 25(3): 265.

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