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Abstract
One-directional weakly conditionally stable finite-difference time-domain (WCS-FDTD) method is extended to solve electromagnetic problems in linear dispersive media by virtue of piecewise linear recursive convolution (PLRC) technique. This proposed method provides similar accuracy to PLRC alternating direction implicit (ADI) FDTD approach, yet consumes less computational time and less memory. This proposed method is particularly suitable for solving problems in linear dispersive materials with fine features along two spatial directions.
Acknowledgments
This work was supported by the National Natural Science Foundation of China under Grants 60976067, 61071031, and 61204041 and the Fundamental Research Funds for the Central Universities under Grant A03008023801149.