摘要
报道双层矩形相位光栅的变分束特性。改变入射光照明方向, 由同一双层矩形相位光栅获得了光束数分别为2、3、4 和5, 总衍射效率高于70% 的扇出光。
Computer simulation of the variable output beams produced by a single double layer rectangular phase grating is presented. With a single element, 2, 3, 4 or 5 output beams with 72.93%, 82.48%, 71.20% or 83.04% of total diffraction efficiencies respectively can be obtained by tuning the read out angle of an incident beam. Methods for improving the optical properties of this element are discussed, and the potential applications in optical memory and optical communication are suggested.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1999年第11期1567-1570,共4页
Acta Optica Sinica
基金
国家自然科学基金
关键词
分束器
变分束
双层光栅
光栅
beam splitter, variable output beams, double-layer grating.