Finite-Difference Time-Domain Algorithm for Dispersive Media Based on Runge-Kutta Exponential Time Differencing Method

Details Finite-Difference Time-Domain Algorithm for Dispersive Media Based on Runge-Kutta Exponential Time Differencing Method Finite-Difference Time-Domain Algorithm for Dispersive Media Based on Runge-Kutta Exponential Time Differencing Method

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ijimw..29..323l&link_type=abstract

International Journal of Infrared and Millimeter Waves, Volume 29, Issue 3, pp.323-328

Computer Science

3

Finite Difference Time Domain (Fdtd) Methods, Runge-Kutta Exponential Time Differencing (Rketd), Unmagnetized Plasma

Scientific paper

The electromagnetic propagation in dispersive media is modeled using finite difference time domain (FDTD) method based on the Runge-Kutta exponential time differencing (RKETD) method. The second-order RKETD-FDTD formulation is derived. The high accuracy and efficiency of the presented method is confirmed by computing the transmission and reflection coefficients for a nonmagnetized collision plasma slab in one dimension. The comparison of the numerical results of the RKETD and the exponential time differencing (ETD) algorithm with analytic values indicates that the RKETD is more accurate than the ETD algorithm.

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