A dispersive WCS-FDTD method for simulating graphene-based absorber

Ning Xu, Juan Chen, Jianguo Wang and Xijia Qin

Journal of Electromagnetic Waves and Applications, 2017, vol. 31, issue 18, 2005-2015

Abstract: A dispersive weakly conditionally stable finite-difference time-domain (WCS-FDTD) method for the efficient simulations of the graphene-based absorbers with fine structures in two directions is proposed in this paper. It is based on the auxiliary differential equation technique and the hybrid implicit explicit difference technique. The maximum time step size of this method is only determined by the largest spatial discretization. The numerical results demonstrate that the dispersive WCS-FDTD method has high computational accuracy and the computational time is greatly reduced compared with the dispersive FDTD method and the dispersive HIE-FDTD method.

Date: 2017
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DOI: 10.1080/09205071.2017.1330161

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