A single diffractive optical element implementing spectrum-splitting and beam-concentration functions simultaneously with high diffraction efficiency  

作　　者：叶佳声 王进泽 黄庆礼 董碧珍 张岩 杨国桢 

机构地区：[1]Department of Physics,Capital Normal University [2]Beijing Key Laboratory for THz Spectroscopy and Imaging,Key Laboratory of THz Optoelectronics,Ministry of Education [3]Institute of Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2013年第3期44-49,共6页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China (Grant No. 2011CB301801);the National Natural Science Foundation of China (GrantNos. 91233202,10904099,11204188,61205097,and 11174211)

摘　　要：In this paper,a novel method is proposed and employed to design a single diffractive optical element（DOE） for implementing spectrum-splitting and beam-concentration（SSBC） functions simultaneously.We develop an optimization algorithm,through which the SSBC DOE can be optimized within an arbitrary thickness range according to the limitations of modern photolithography technology.Theoretical simulation results reveal that the designed SSBC DOE has a high optical focusing efficiency.It is expected that the designed SSBC DOE should have practical applications in high-efficiency solar cell systems.In this paper,a novel method is proposed and employed to design a single diffractive optical element（DOE） for implementing spectrum-splitting and beam-concentration（SSBC） functions simultaneously.We develop an optimization algorithm,through which the SSBC DOE can be optimized within an arbitrary thickness range according to the limitations of modern photolithography technology.Theoretical simulation results reveal that the designed SSBC DOE has a high optical focusing efficiency.It is expected that the designed SSBC DOE should have practical applications in high-efficiency solar cell systems.

关 键 词：diffractive optical element spectrum-splitting and beam-concentration functions thickness optimization algorithm solar cell systems 

分 类 号：TN606[电子电信—电路与系统]