[3] [3] Christensen D A. Analysis of near field tip patterns including object interaction using finite-difference time-domain calculations. Ult ramicroscopy, 1995, 57:189～195

[7] [7] Yee K S. Numerical solution of initially boundary value problem involving Maxwell′s equations in isotropic media. IEEE Trans. Antennas Propagat., 1966, AP214:302～307

[8] [8] Kunz K S, Luebbers R J. The Finite Difference Time Domain Method for Electromagnetics. Boca Raton, FL: CRC Press, 1993. 22～23

[9] [9] Taflove A, Brodwin M E. Numerical solution of steady-state electromagnetic scattering problems using the time-dependent Maxwell′s equation. I EEE Trans. Micro. Theory Tech., 1975, MTT-23:623～630

[10] [10] Mur G. Absorbing boundary conditions for the finite-difference approximation of the time-domain electromagnetic field equations. IEEE Trans. Electromagn. Compat., 1981, EMC-23:377～382

[11] [11] Wang P B, Leonard G, Baron J E. A three-wave FDTD approach to surface scattering with applications to remote sensing of geophysical surfaces. IEEE Trans. Antennas Propagat., 1996, 44(4):504～513