中国物理B ›› 2017, Vol. 26 ›› Issue (7): 74202-074202.doi: 10.1088/1674-1056/26/7/074202

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Simple and universal method in designs of high-efficiency diffractive optical elements for spectrum separation and beam concentration

Wen-Qi Xu(徐文琪), Dong-Feng Lin(林冬风), Xin Xu(许信), Jia-Sheng Ye(叶佳声), Xin-Ke Wang(王新柯), Sheng-Fei Feng(冯胜飞), Wen-Feng Sun(孙文峰), Peng Han(韩鹏), Yan Zhang(张岩), Qing-Bo Meng(孟庆波), Guo-Zhen Yang(杨国桢)   

  1. 1 Department of Physics, Capital Normal University, Beijing Key Laboratory of Metamaterials and Devices, Key Laboratory of Terahertz Optoelectronics of Ministry of Education, Beijing 100048, China;
    2 Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2017-01-09 修回日期:2017-03-05 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: Jia-Sheng Ye E-mail:jsye@mail.cnu.edu.cn
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant No.2013CBA01702),the National Natural Science Foundation of China (Grant Nos.11474206,91233202,11374216,and 11404224),the Scientific Research Project of Beijing Education Commission,China (Grant No.KM201310028005),and the Scientific Research Base Development Program of the Beijing Municipal Commission of Education and the Beijing Youth Top-Notch Talent Training Plan,China (Grant No.CIT&TCD201504080).

Simple and universal method in designs of high-efficiency diffractive optical elements for spectrum separation and beam concentration

Wen-Qi Xu(徐文琪)1, Dong-Feng Lin(林冬风)2, Xin Xu(许信)2, Jia-Sheng Ye(叶佳声)1, Xin-Ke Wang(王新柯)1, Sheng-Fei Feng(冯胜飞)1, Wen-Feng Sun(孙文峰)1, Peng Han(韩鹏)1, Yan Zhang(张岩)1, Qing-Bo Meng(孟庆波)2, Guo-Zhen Yang(杨国桢)2   

  1. 1 Department of Physics, Capital Normal University, Beijing Key Laboratory of Metamaterials and Devices, Key Laboratory of Terahertz Optoelectronics of Ministry of Education, Beijing 100048, China;
    2 Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2017-01-09 Revised:2017-03-05 Online:2017-07-05 Published:2017-07-05
  • Contact: Jia-Sheng Ye E-mail:jsye@mail.cnu.edu.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant No.2013CBA01702),the National Natural Science Foundation of China (Grant Nos.11474206,91233202,11374216,and 11404224),the Scientific Research Project of Beijing Education Commission,China (Grant No.KM201310028005),and the Scientific Research Base Development Program of the Beijing Municipal Commission of Education and the Beijing Youth Top-Notch Talent Training Plan,China (Grant No.CIT&TCD201504080).

摘要:

Diffractive optical elements (DOEs) with spectrum separation and beam concentration (SSBC) functions have important applications in solar cell systems. With the SSBC DOEs, the sunlight radiation is divided into several wave bands so as to be effectively absorbed by photovoltaic materials with different band gaps. A new method is proposed for designing high-efficiency SSBC DOEs, which is physically simple, numerically fast, and universally applicable. The SSBC DOEs are designed by the new design method, and their performances are analyzed by the Fresnel diffraction integral method. The new design method takes two advantages over the previous design method. Firstly, the optical focusing efficiency is heightened by up to 10%. Secondly, focal positions of all the designed wavelengths can be designated arbitrarily and independently. It is believed that the designed SSBC DOEs should have practical applications to solar cell systems.

关键词: diffractive optical element, spectrum separation and beam concentration, optical focusing efficiency, solar cell system

Abstract:

Diffractive optical elements (DOEs) with spectrum separation and beam concentration (SSBC) functions have important applications in solar cell systems. With the SSBC DOEs, the sunlight radiation is divided into several wave bands so as to be effectively absorbed by photovoltaic materials with different band gaps. A new method is proposed for designing high-efficiency SSBC DOEs, which is physically simple, numerically fast, and universally applicable. The SSBC DOEs are designed by the new design method, and their performances are analyzed by the Fresnel diffraction integral method. The new design method takes two advantages over the previous design method. Firstly, the optical focusing efficiency is heightened by up to 10%. Secondly, focal positions of all the designed wavelengths can be designated arbitrarily and independently. It is believed that the designed SSBC DOEs should have practical applications to solar cell systems.

Key words: diffractive optical element, spectrum separation and beam concentration, optical focusing efficiency, solar cell system

中图分类号:  (Optical system design)

  • 42.15.Eq
42.25.Fx (Diffraction and scattering) 42.79.Ek (Solar collectors and concentrators)