Abstract
We have derived a modified finite-difference frequency-domain (FDFD)
algorithm for two-dimensional (2-D) metallic photonic crystal (MPC)
analysis. Using this method, the numerical results for the
transverse-electric (TE) and transverse-magnetic (TM) modes in square and
triangular lattices are in excellent agreements with those from other
method. Then the correspondence of the band gaps between a unit cell and a
supercell is demonstrated. Furthermore, by comparing the field distributions
of the defect modes in a point defected MPC and a point defected dielectric
photonic crystal (DPC), it is found that the defect MPC has a higher degree
of localization, which means that MPC is preponderant for resonator and
waveguide applications in millimeter wave and sub-millimeter wave
bands.
© 2010 IEEE
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