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2017-07-05
Wideband Finite-Difference Time-Domain Modeling of Graphene via Recursive Fast Fourier Transform
By
Progress In Electromagnetics Research C, Vol. 75, 139-145, 2017
Abstract
An efficient method based on the recursive fast Fourier transform (FFT) to incorporate both the intra-band and inter-band conductivity terms of graphene into the finite-difference time-domain (FDTD) method is proposed. As it only requires numerical values of the conductivity, it not only does not enforce any restrictions on the conductivity models, but also can directly take into account material properties obtained from measurement. It reduces the total computational cost from O(N2) to O(Nlog2N) where N is the length of the unknown. The FDTD method is also modified and proven to retain the stability condition of the standard FDTD method.
Citation
Fatemeh Afshar Ali Akbarzadeh-Sharbaf Dennis D. Giannacopoulos Steve McFee , "Wideband Finite-Difference Time-Domain Modeling of Graphene via Recursive Fast Fourier Transform," Progress In Electromagnetics Research C, Vol. 75, 139-145, 2017.
doi:10.2528/PIERC17012505
http://www.jpier.org/PIERC/pier.php?paper=17012505
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