Study of two dimensional photonic band gap structure;

Change of band gap structure of 1-D photonic crystal of periodic positive-negative index structure at angular incidence;

With the boundary conditions satisfied by the electromagnetic fields in the interface between the crystal and the clad,the characteristic equation to describe the band gap structure is deduced.

Computations of one-dimensional photonic crystal band-gap structures using Rouard's method;

The authors proposed a new model of one-dimensional photonic crystal composed of alternately arranged RHM and LHM layers, calculated numerically the transmission spectra of the model with the transfer matrix method, and theoretically analyzed characteristics of the band-gap structure.

Comparing with the periodical structure, its band-gap structure has some characteristics.

In this article, the first Brillouin zone (BZ) and the method of calculating the photonic band gaps of two-dimensional monoclinic lattice photonic crystal are discussed.

We caculated the band structure of composite-photonic-crystal and composite photonic crystals.

Quasi-static bandgap structure was put forward,and its bandgap was calculated using Finite-difference Time-domain (FDTD) and Pulse Width Modulation (PMW).