Title :
Subgrid representations of objects for NS-FDTD calculations based on Mie theory for layered structures
Author :
Cole, Jame B. ; Banerjee, Saswatee
Author_Institution :
Dept. of Comput. Sci. Eng., Univ. of Tsukuba, Tsukuba, Japan
Abstract :
The nonstandard (NS) finite difference time domain (FDTD) algorithm delivers high accuracy on a coarse numerical grid, but in many problems the dominant source of error is the representation of objects on the grid. The error due to the representation is especially large near resonances. In this paper we address some methods to reduce representation error based on Mie theory on the theory of layers.
Keywords :
computational electromagnetics; electromagnetic wave scattering; finite difference time-domain analysis; Mie theory; NS FDTD algorithm; coarse numerical grid; layered structures; nonstandard finite difference time domain algorithm; object subgrid representations; representation error reduction; Accuracy; Computational modeling; Finite difference methods; Mathematical model; Refractive index; Time-domain analysis; Whispering gallery modes; Layers; Mie scattering; nonstandard (NS) FDTD; object representation; whispering gallery mode;
Conference_Titel :
Applied Computational Electromagnetics (ACES), 2015 31st International Review of Progress in
Conference_Location :
Williamsburg, VA
