Polarization-independent Imaging With Annular Photonic Crystal Slab

摘要：

The imaging behaviors for both polarizations of electromagnetic wave in two-dimensional annular photonic crystal flat lens are theoretical investigated. For the TE-polarization,the subwavelength imaging induced by negative refraction is obtained. In contras,for the TM-polarization,the realting optical field distribution behind the slab resembles a triple point source due to the effect of channeling,the light can focus again by the interference effect. Especially,the image of unpolarized wave point source can be realized and image distance can be reduced as the source-slab distance increasing. These results show that the negative refraction is not the one and only mechanism of imaging by PC slab.

关键词： imaging annular photonic crystal unpolarized electromagnetic wave

作者: Hong Wu Wei Jia Liyong Jiang Xiangyin Li

作者单位: Department of Physics,Nanjing University of Science and Technology,Nanjing 210094,China

会议类型: 国际会议

会议名称: 2011 International Conference on Opto-Electronics Engineering and Information Science(2011光电电子工程与信息科学国际会议 ICOEIS 2011)

会议地点: 西安

会议语种:英文

页码: 1522-1525

在线出版日期: 2011-12-23（万方平台首次上网日期，不代表论文的发表时间）