Transmission characteristics of finite-size, two-dimensional metallic photonic crystals studied by THz time domain spectroscopy

摘要

We have investigated the transmission characteristics of the 2D-MPC and observed the dispersion relation experimentally. It is found that the group velocity of TM wave is faster than that of TE wave. We have studied the effect of the finite-size array structure. The result shows that the transmittance at the resonant peak depends on the individual holes and is independent from the arrayed structure.