Dynamic shaping of vectorial optical fields based on two-dimensional blazed holographic grating

被引：3

作者：

王心怡 ^{[1
]}

高源 ^{[1
]}

陈召忠 ^{[1
]}

丁剑平 ^{[1
,2
,3
]}

王慧田 ^{[1
,2
]}

机构：

[1] National Laboratory of Solid State Microstructures and School of Physics,Nanjing University

[2] Collaborative Innovation Center of Advanced Microstructures,Nanjing University

[3] Collaborative Innovation Center of Solid-State Lighting and Energy-Saving Electronics,Nanjing University

来源：

Chinese Physics B | 2020年 / 01期

关键词：

diffraction; polarization; holographic gratings; liquid-crystal devices;

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a vectorial optical field generation system based on two-dimensional blazed grating to high-efficiently generate structured optical fields with prescribed amplitude, phase, and polarization. In this system, an optimized blazed grating hologram is written on a spatial light modulator(SLM) and can diffract the majority of the incident light into the first-order diffractions of the x and y directions, which then serve as base vectors for synthesizing desired vector beams.Compared with the conventional cosine grating used in the previous work, the proposed two-dimensional, blazed grating has a much higher efficiency. Both computer simulation and optical experiment validate that a conversion efficiency up to 5 times that of the former work is achieved. Our method can facilitate applications of the optical field manipulation.

引用

页码：93 / 98

页数：6