摘要
本文首先介绍了一种独特的矢量衍射方法．针对传播波在频域的范围过大的难点，通过引入“有效频域孔径”的概念，成功的将这种方法应用到大口径光束变换系统中．最后利用这种方法对大口径的矩孔和圆孔的夫琅和费衍射重新进行了分析，并讨论了抽样点数选取的问题．
Effective frequency-domain aperture is introduced. Then a certain vector diffraction method can be used in the large-caliber beam shaping system by the concept. Fraunhofer diffrac- tion of rectangular and circular aperture problems is re-analyzed by the certain vector method and how to select the number of sampling points is also discussed in the paper.
出处
《量子电子学报》
CAS
CSCD
北大核心
2001年第B12期36-39,共4页
Chinese Journal of Quantum Electronics
关键词
矢量衍射
光束变换系统
有效频域孔径
vector diffraction
angular spectrum
large-caliber beam shaping system
effective frequency-domain aperture
