Experimental implementation of phase triplicator gratings in a spatial light modulator  

作　　者：高尚 María del Mar Sánchez-López Ignacio Moreno Shang Gao;María del Mar Sánchez-López;Ignacio Moreno(Instituto de Bioingeniería,Universidad Miguel Hernández,Elche 03202,Spain;Departamento de Física Aplicada,Universidad Miguel Hernández,Elche 03202,Spain;Departamento de Ciencia de Materiales,Óptica y Tec.Electr´onica,Universidad Miguel Hernández,Elche 03202,Spain)

机构地区：[1]Instituto de Bioingeniería,Universidad Miguel Hernández,Elche 03202,Spain [2]Departamento de Física Aplicada,Universidad Miguel Hernández,Elche 03202,Spain [3]Departamento de Ciencia de Materiales,Óptica y Tec.Electr´onica,Universidad Miguel Hernández,Elche 03202,Spain

出　　处：《Chinese Optics Letters》2024年第2期64-69,共6页中国光学快报（英文版）

基　　金：supported by the Ministerio de Ciencia e Innovación,Spain(PID2021-126509OB-C22);Generalitat Valenciana(CIAICO/2021/276)。

摘　　要：In this work,we compare different methods for implementing a triplicator,a phase grating that generates three equiintense diffraction orders.The design with optimal efficiency features a continuous phase profile,which cannot be easily reproduced,and is typically affected by quantization.We compare its performance with binary and sinusoidal phase profiles.We also analyze the effect of quantizing the phase levels.Finally,a random approach is adopted to eliminate the additional harmonic orders.In all cases,a liquid-crystal-on-silicon spatial light modulator is employed to experimentally verify and compare the different approaches.

关 键 词：diffraction gratings phase modulation triplicator spatial light modulators 

分 类 号：O43[机械工程—光学工程]