青岛大学学报（自然科学版）2017，Vol.30Issue(1)：21-23,28,4.DOI:10.3969/j.issn.1006-1037.2017.02.05
宽光谱宽视角亚波长金属偏振分束器的研究
Polarizing Beam Splitters Based on Subwavelength Metal Grating with wide Spectrum and Wide Angle
摘要
Abstract
The polarizing beam splitting performance of subwavelength metal grating was designed using the rigorous couple-wave theory and the parameters was optimized using genetic algorithm.The transmission and reflection diffraction efficiency of 0 order can be more than 90% when the incident wavelength was varied in the range from 1429 nm to 1700 nm, the transmission and reflection extinction ratios were better than 20 dB when the incident angle is in the range from-27.5 to 27.5, which met the expectations for wide spectrum, wide angle.Numerical results showed that the designed grating has good manufacture tolerance to period and groove depth.关键词
亚波长光栅/严格耦合波分析/遗传算法/偏振分束Key words
subwavelength grating/rigorous couple-wave analysis/genetic algorithm/polarizing beam分类
数理科学引用本文复制引用
季淑英,孔伟金,李娜,车卫康,司维,徐志恒..宽光谱宽视角亚波长金属偏振分束器的研究[J].青岛大学学报（自然科学版）,2017,30(1):21-23,28,4.基金项目
国家自然科学基金项目(批准号:11274188)资助. （批准号:11274188）
