【作者】 王利； 桑田； 沈正祥； 黄水平； 王占山； 陈玲燕；

【Author】 Wang Li; Sang Tian; Shen Zhengxiang; Huang Shuiping;Wang Zhanshan; Chen Lingyan (Institute of Precision Optical Engineering, Department of Physics, Tongji University, Shanghai 200092,China Department of Educational Technology, Liaocheng University, Liaocheng, 252059, China)

【机构】 同济大学物理系精密光学工程技术研究所；

【摘要】 具有缺陷的一维光子晶体结构中,群速度延迟在缺陷模处会发生突变,从而共振隧穿的光波会发生大的测向位移。将具有多个缺陷的一维光子晶体作为色散元件,设计了能够将两通道和三通道虑光片在斜入射条件下进行波长空间分离的空间滤波器。该空间滤波器具有制备简单、能够同时进行多路空间滤波的特点。更多还原

【Abstract】 Group delay will change greatly at the defect mode. We demonstrate the use of one-dimensional photonic crystals (PCs) containing defect layers as dispersive device to spatially separate transmitted light beams at obliquely incident angles. Unlike previous wavelength demultiplexer, the structure is easy to fabricate and can be used in continuous spectrum. We also discuss possible applications of the device within wavelength division systems.更多还原