A. Suryanto
We discuss the transmission properties of one-dimensional quarter-wavelength stack containing an inserted array of defect layers. Using a direct integration method, we show that defect layers may cause resonances inside the bandgap, called defect modes. It is shown that defect modes are strongly dependent on the number, the sizes and the positions of defect layers as well as on the period number of the separated layers between the defects. We also show that the increasing number of defects can reduce the optical bistability threshold significantly. Based on the direct integration method, it is shown that nonlinear transfer matrix method either without or with improvement in the interface conditions can only show the bistable behavior qualitatively and not quantitatively. © World Scientific Publishing Company.
Applied Mathematical Modeling and Computation Laboratory, Jurusan Matematika, Universitas Brawijaya, Jl. Veteran Malang 65141, Indonesia
