| 连续相位板优化设计 |
| |
| 引用本文： | 阳泽健,高福华,姚欣,郭永康. 连续相位板优化设计[J]. 激光与光电子学进展, 2010, 0(2) |
| |
| 作者姓名： | 阳泽健 高福华 姚欣 郭永康 |
| |
| 作者单位： | 四川大学高能量密度物理与技术教育部重点实验室; |
| |
| 基金项目： | 国家863计划(2008AA0920)资助课题 |
| |
| 摘 要： | 提出一种适用于连续相位板设计的改进Gerchberg-Saxton(GS)算法,该算法应用相位展开相关原理,结合滤波处理使GS算法设计的近场相位连续分布,同时提出在GS算法的远场迭代中采用经过修正的振幅函数,可使远场光斑的包络更接近目标函数。模拟实验表明,该方法解决了现有连续相位板设计中相位连续性与靶面光强控制效果难以同时优化的矛盾,可满足惯性约速聚变(ICF)对束匀滑元件相位连续性、光斑包络及能量集中度的要求。
|
| 关 键 词： | 连续相位板 优化算法 波面整形 惯性约束聚变 |
Optimized Design of Continuous Phase Plate |
| |
| Yang Zejian Gao Fuhua Yao Xin Guo Yongkang. Optimized Design of Continuous Phase Plate[J]. Laser & Optoelectronics Progress, 2010, 0(2) |
| |
| Authors: | Yang Zejian Gao Fuhua Yao Xin Guo Yongkang |
| |
| Affiliation: | Key Laboratory for High Energy Density Physics and Technology;Ministry of Education;Sichuan University;Chengdu;Sichuan 610064;China |
| |
| Abstract: | An improved Gerchberg-Saxton (GS) algorithm for constructing fully continuous phase plate for beam shaping is proposed. The continuity of the phase plate can be ensured by use of phase unwrapping algorithm and Fourier filter operation, and a better far-field intensity profile can be obtained when the objective amplitude is replaced with a proper modified amplitude function during iteration. The simulation test proves that the method has resolved the conflict between the demand of the phase continuity in the... |
| |
| Keywords: | continuous phase plate iterative algorithm beam shaping inertial confinement fusion |
| 本文献已被 CNKI 等数据库收录！ |
