Reverse engineering approach to focus shaping

被引：42
|
作者：
Chen, Zhaozhong
Zeng, Tingting
Ding, Jianping [1 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
来源：
OPTICS LETTERS | 2016年 / 41卷 / 09期
基金：
中国国家自然科学基金;
关键词：
FIELD; GENERATION; PHASE; BEAM; POLARIZATION; DIFFRACTION; IMAGE;
D O I：
10.1364/OL.41.001929
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and experimentally demonstrate an inverse design for the complete shaping of the optical focal field with the prescribed distribution of intensity, phase, and polarization. The input field that yields the desired focal field is obtained through a fast noniterative calculation procedure, in which the focal field is configured at will and then backpropagates to the input plane. The experiments have verified that all parameters of the focal field can be controlled simultaneously and independently. Furthermore, using this inverse design, we generate in focal region a kind of "perfect polarization vortex" field that has a shape independent of the topological charge of vortex. This target-oriented scheme holds the potential for applications requiring a complex focal field. (C) 2016 Optical Society of America
引用
收藏
页码：1929 / 1932
页数：4
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