衍射
菲涅耳衍射
光学
瑞利散射
强度(物理)
转化(遗传学)
相(物质)
计算机科学
分布(数学)
极限(数学)
菲涅耳积分
物理
数学分析
数学
基因
量子力学
化学
生物化学
作者
Hui Pang,Shaoyun Yin,Qiling Deng,Qi Qiu,Chunlei Du
标识
DOI:10.1016/j.optlaseng.2015.02.007
摘要
The original design method for diffractive optical elements (DOEs) is limited to cases of small-angle diffraction due to the Fresnel or Fraunhofer diffraction integral. In this paper, we propose a new method based on the Rayleigh–Sommerfeld diffraction integral, which does not have this limit. In this method, the target intensity distribution is first modified via coordinate transformation and intensity adjustment. Then, the modified Gerchberg–Saxton algorithm is used to achieve the phase distribution of the DOE. To verify this method, simulations and experiments are performed. The results show that the original method is effective only when the full diffraction angle of the DOE is below 25°. Conversely, this method can achieve the target with both small and large diffraction angles.
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