A. Suryanto, E. Van Groesen, M. Hammer
We present a new approach based on the recently reported finite element scheme16 to study the optical response of a finite one-dimensional nonlinear grating. Using the transmitted wave amplitude as a numerical input parameter, we are able to find all stable and unstable solutions related to a specific incident wave which build up the complete bistability curve. The method is applied to investigate the optical bistability in a nonlinear quarter-wave reflector with a defect. With a proper choice of the incident light frequency, a very low bistability threshold is predicted for an optimized defect structure.
MESA+ Research Institute, University of Twente, Enschede, Netherlands; Applied Mathematics, University of Twente, 7500 AE Enschede, P.O. Box 217, Netherlands; Jurusan Matematika, Universitas Brawijaya, 167 Malang, Jl. MT Haryono, Indonesia
