摘要
在菲涅耳衍射区和夫琅禾费衍射区,分别利用输入面上的多个随机二元纯相位调制,获得多个输出面强度信息,在不需要输入面强度先验信息的基础上,基于迭代算法高精度重构了复杂光场的波前。讨论了菲涅耳衍射区和夫琅禾费衍射区各自特点和适用范围。
Without prior intensity information in input plane,one method using random binary phase modulation and iterative algorithm is adopted to reconstruct complex wave-front in Fresnel and Fraunhofer diffraction domains,respectively.Three or more diffraction patterns in Fresnel or Fraunhofer domains with different random binary phase masks are used to successfully retrieve the complex wave-front.The differences of the methods used in Fresnel or Fraunhofer diffraction domains are finally discussed in detail.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2010年第7期1800-1806,共7页
Chinese Journal of Lasers
基金
国家863计划(2008AA8040506C)资助课题
关键词
物理光学
波前重构
相位调制
复杂光场
迭代算法
physical optics
wave-front reconstruction
phase modulation
complex wave-front
iterative algorithm
