title: Graded wavelike two-dimensional photonic crystal made of thin films.
abstract: A filling-factor-graded wavelike two-dimensional photonic crystal (2DPC) possessing a light-path bending effect that is polarization dependent is theoretically studied by using a qualitative analysis of the isofrequency curves. The numerical simulation results obtained by using the finite-difference time-domain method demonstrate that such a graded 2DPC has potential applications in a polarization splitter and a parallel-plane resonant cavity. A new kind of waveguide structure that combines a filling-factor-graded wavelike 2DPC and one-dimensional multilayer thin films is also discussed.
authors.affiliation: State Key Laboratory for Modern Optical Instrumentation, ZheJiang University, Hang'zhou 310027, China.
authors.forename: Yi-Yu
authors.initials: YY
authors.lastname: Li
authors.forename: Ming-Yu
authors.initials: MY
authors.lastname: Li
authors.forename: Pei-Fu
authors.initials: PF
authors.lastname: Gu
authors.forename: Zhen-Rong
authors.initials: ZR
authors.lastname: Zheng
authors.forename: Xu
authors.initials: X
authors.lastname: Liu