Comparative strengths of a pseudo-spectral time domain method in numerical simulation of single particle optical scattering

R. L. Panetta, C. Liu, P. Yang

Abstract


We present some results on the relative performance of the pseudo-spectral  time domain, finite difference time domain, and DDA methods in calculating single-particle optical scattering properties. Our interest is in particles with size parameters in excess of 10.  Using as test case a homogeneous spherical particle we have found that the pseudo-spectral time domain method is generally more efficient (uses less cpu time for a given accuracy) than the finite-difference time domain method. The DDA method appears to be superior to the pseudo-spectral method for indices of refraction less than 1.5, but as the  index of refraction increases, the pseudo-spectral method becomes superior.  We present here some results for particles with size parameters 10 and 30, and indices of refraction 1.3117 and 1.7.

Keywords


Light Scattering, Pseudo-spectral Time Domain

Full Text:



[DOI: 10.1478/C1V89S1P074] About DOI

Url Resolver: : http://dx.doi.org/10.1478/C1V89S1P074


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.