Title :
Nonlinear PML boundary conditions for nonparaxial BPM in /spl chi//sup (2)/ materials
Author :
Petruskevicius, Raimondas ; Bellanca, Gaetano ; Bassi, Paolo
Author_Institution :
Inst. of Phys., Vilnius, Lithuania
Abstract :
Nonlinear perfectly matched layer (NL-PML) boundary conditions for a nonparaxial finite-difference beam propagation method are developed and applied to the simulation of spatial solitary waves in periodically poled second-order nonlinear materials. Their overall better performance is verified comparing their effectiveness with that of linear PML and transparent boundary conditions.
Keywords :
boundary-value problems; finite difference methods; optical films; optical materials; optical solitons; optical waveguide theory; /spl chi//sup (2)/ materials; beam propagation method; nonlinear PML boundary conditions; nonlinear perfectly matched layer boundary conditions; nonparaxial BPM; nonparaxial finite-difference beam propagation method; periodically poled second-order nonlinear materials; spatial solitary waves; transparent boundary conditions; Anisotropic magnetoresistance; Boundary conditions; Equations; Finite difference methods; Frequency; Lithium niobate; Nonlinear optical devices; Optical materials; Optical scattering; Perfectly matched layers;
Journal_Title :
Photonics Technology Letters, IEEE
