摘要
提出用多焦点全息透镜实现多重谱分数傅里叶变换 利用全息方法通过一次曝光制作出多焦点的全息透镜 ,分析了用此全息元件实现这种变换的条件 ,并在实验上实现了多重谱分数傅里叶变换 .实验结果表明这种变换方法简便可行 。
The fractional fourier transform is a new concept which is put forwarded recently and has much important application in optical information processing field.In this paper, a method for implementation of the multiple spectrum fractional fourier transform using a multi focus hololens is proposed. The multi focus hololens is made with holographic method and the conditions for using it as a transform element is analyzed in theory. In laboratory,the multiple spectrum fractional fourier transform is realized. The experimental result shows this transform method is simple and feasible, and it can be used in multi channel optical information processing systems and multi object recognition systems.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2002年第9期1109-1111,共3页
Acta Photonica Sinica
