中国物理B ›› 2020, Vol. 29 ›› Issue (1): 14208-014208.doi: 10.1088/1674-1056/ab5a3b

所属专题： SPECIAL TOPIC — Optical field manipulation

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

Xinyi Wang(王心怡), Yuan Gao(高源), Zhaozhong Chen(陈召忠), Jianping Ding(丁剑平), Hui-Tian Wang(王慧田)   

  1. 1 National Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China;
    2 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    3 Collaborative Innovation Center of Solid-State Lighting and Energy-Saving Electronics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2019-08-30 修回日期:2019-10-23 出版日期:2020-01-05 发布日期:2020-01-05
  • 通讯作者: Jianping Ding E-mail:jpding@nju.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91750202 and 11534006) and the National Key R&D Program of China (Grant Nos. 2018YFA0306200 and 2017YFA0303700).

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

Xinyi Wang(王心怡)1, Yuan Gao(高源)1, Zhaozhong Chen(陈召忠)1, Jianping Ding(丁剑平)1,2,3, Hui-Tian Wang(王慧田)1,2   

  1. 1 National Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China;
    2 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    3 Collaborative Innovation Center of Solid-State Lighting and Energy-Saving Electronics, Nanjing University, Nanjing 210093, China
  • Received:2019-08-30 Revised:2019-10-23 Online:2020-01-05 Published:2020-01-05
  • Contact: Jianping Ding E-mail:jpding@nju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91750202 and 11534006) and the National Key R&D Program of China (Grant Nos. 2018YFA0306200 and 2017YFA0303700).

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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.

关键词: diffraction, polarization, holographic gratings, liquid-crystal devices

Abstract: 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.

Key words: diffraction, polarization, holographic gratings, liquid-crystal devices

中图分类号:  (Diffraction and scattering)

  • 42.25.Fx
42.25.Ja (Polarization) 42.40.Eq (Holographic optical elements; holographic gratings) 42.79.Kr (Display devices, liquid-crystal devices)