论文部分内容阅读
By using a Fourier series expansion method combined with Chew's perfectly matched layers(PMLs),we analyze the frequency and quality factor of a micro-cavity on a two-dimensional photonic crystal is analyzed.Compared with the results by the method without PML and finite-difference time-domain (FDTD)based on supercell approximation,it can be shown that by the present method with PMLs,the resonant frequency and the quality factor values can be calculated satisfyingly and the characteristics of the micro-cavity can be obtained by changing the size and permittivity of the point defect in the micro-cavity.