Distribution of energy density by dielectric waveguides with air-hole layer composed of dielectric circular cylinder array

In this paper, we have analyzed the guiding problem for dielectric waveguides with air-hole layer composed of dielectric circular cylinder array by using the combination of improved Fourier series expansion method and multilayer method, and investigate the influence of energy distribution in the defect region. Numerical results are given by both the complex propagation constants at the first stop band region and distribution of energy density for defect area utilizing the propagation constants at the guided region for TE mode. As a result, this paper gives a design of structure for optimum dielectric waveguide to concentrate the energy into the defects.