Investigation Effects of Filling Rate on the Bands Gaps of Two Dimensional Photonic Crystals
Abstract: The influences of
the filling rate on the photonic band gap properties of the two dimensional hex
photonic crystals are investigated using the finite-difference time-domain
method. When the filling rate f varies from 0.227 to 0.735 reminding the
refractive index as 5, the number of the photonic band gaps decreases from 5 to
2 bands, the width of the photonic band gap between the transmit peaks become narrow;
but for larger f > 0.445, the transmit intensity is very low in the high
frequency region, it can be consider as a larger photonic band gap region, the
onset of this larger photonic band gap shifts toward low frequency. At the same
time, the onset transmit peaks shift toward low frequency also. The simulation results
show that the photonic band gap can be effectively changed by the filling rate.
Author: Baohe Yuan
Journal Code: jptkomputergg160054
