Defect Mode Computation in Two-Dimensional Photonic Crystals Consisting of Nearly-Free-Electron Metals
XIAO San-Shui1,3, HE Sai-Ling1,2, LIN Qing-Chun1,3, SHEN Lin-Fang1
1Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027
2Department of Electromagnetic Theory, Royal Institute of Technology, S-100 44 Stockholm, Sweden
3Department of Physics, Zhejiang University, Hangzhou 310027
Defect Mode Computation in Two-Dimensional Photonic Crystals Consisting of Nearly-Free-Electron Metals
1Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027
2Department of Electromagnetic Theory, Royal Institute of Technology, S-100 44 Stockholm, Sweden
3Department of Physics, Zhejiang University, Hangzhou 310027
Abstract： Defect modes in two-dimensional photonic crystals consisting of nearly-free-electron metals are considered. To avoid any time-consuming time convolution, modified time stepping formulas are used in a finite-difference time-domain (FDTD) method. Compared to the FDTD transmission spectra method, the present method significantly reduces the computation domain. With the present method one can also find defect modes that are not excited by the incident plane wave in the FDTD transmission spectra method.
2001, Vol. 18 
