In this paper, the second harmonic generations
in finite size one-dimensional defective nonlinear photonic
crystals have been investigated. To calculate the conver-
sion efficiency, fundamental and second harmonic wave
propagation among four proposed structures, we use the
transfer matrix method. In the designed defective nonlinear
photonic crystal structures, the linear and nonlinear optical
parameters are both periodically modulated and thus the
second harmonic generation efficiency can be several
orders of magnitude larger than in a conventional quasi-
phase-matched nonlinear structure with the same sample
length.
کلید واژگان :
one-dimensional defective nonlinear photonic crystals, Second harmonic generation
