Articles

A DIAGONAL SPLIT-CELL MODEL FOR THE OVERLAPPING YEE FDTD METHOD

  • Jinjie Liu ,
  • Moysey Brio ,
  • Jerome V. Moloney
Expand
  • Department of Mathematical Sciences, Delaware State University, Dover, DE 19901, USA; Arizona Center for Mathematical Sciences, Department of Mathematics, University of Arizona, Tucson, AZ 85721, USA

Received date: 2009-10-31

  Online published: 2009-11-20

Supported by

This work is supported by the Air Force Office of Scientific Research (AFOSR)under Grant numbers FA9550-04-1-0213 and FA9550-07-1-0010.

Abstract

In this paper, we present a nonorthogonal overlapping Yee method for solving Maxwell's equations using the diagonal split-cell model. When material interface is presented, the diagonal split-cell model does not require permittivity averaging so that better accuracy can be achieved.
Our numerical results on optical force computation show that the standard FDTD method converges linearly, while the proposed method achieves quadratic convergence and better accuracy.

Cite this article

Jinjie Liu , Moysey Brio , Jerome V. Moloney . A DIAGONAL SPLIT-CELL MODEL FOR THE OVERLAPPING YEE FDTD METHOD[J]. Acta mathematica scientia, Series B, 2009 , 29(6) : 1670 -1676 . DOI: 10.1016/S0252-9602(10)60009-4

References


[1]  Yee K S. Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media. IEEE Trans Antennas Propag, 1966, 14: 302--307


[2] Taflove A,  Brodwin M E. Numerical solution of steady-state electromagnetic scattering problems using the time-dependent Maxwell's equations. IEEE Trans Microwave Theory Tech, 1975, 23: 623--630


[3] Taflove A. Application of the finite-difference time-domain method to sinusoidal steady-state electromagnetic penetration problems. IEEE Trans Electromagn Compat, 1980, 22: 191--202


[4]  Jurgens T G, Taflove A,  Umashankar K R,  Moore T G. Finite-difference time-domain modeling of curved surfaces. IEEE Trans Antennas Propag, 1992, 40:  357--366


[5]  Dey S,  Mittra R.  A locally conformal finite-difference time-domain algorithm for modeling three-dimensional perfectly conducting object. IEEE Microwave Guid Wave Lett, 1997, 7:  73--275


[6]  Dey S,  Mittra R. A modified locally conformal finite-difference time-domain algorithm for modeling three-dimensional perfectly conducting objects. IEEE Microw Opt Technol Lett, 1998, 17: 349--352


[7]  Dey S,  Mittra R. A conformal finite-difference time-domain technique for modeling cylindrical dielectric resonators. IEEE Trans Microw Theory Tech, 1999, 47: 1737--1739


[8]  Holland R. Finite-difference solution of Maxwell's equations in generalized nonorthogonal coordinates. IEEE Trans Nuclear Science, 1983,  NS-30: 4589--4591


[9]  Lee J -F,  Palandech R, Mittra R. Modeling three-dimensional discontinuities in  waveguide using nonorthogonal FDTD algorithm. IEEE Trans Microw Theory Tech, 1992, 40(2): 346--352


[10]  Madsen N. Divergence preserving discrete surface integral methods for Maxwell's curl equations using non-orthogonal unstructured grids. J Comput Phys, 1995, 119:  34--45


[11]  Gedney S,  Lansing F,  Rascoe D. Full wave analysis of microwave monolithic circuit devices using a generalized Yee-algorithm based on an unstructured grid. IEEE Trans Microw Theory Tech,  1996, 44(2): 1393--1400


[12]  Liu J,  Brio M,  Moloney J V. Overlapping Yee FDTD method on nonorthogonal grids. J Sci Comput, 2009, 39(1): 129--143. doi:10.1007/s10915-008-9253-1


[13]  Mohammadi A,  Nadgaran H,  Agio M.  Contour-path effective permittivities for the two-dimensional finite-difference time-domain method. Opt Express, 2005, 13(25): 10367--10381


[14]  Kaneda N, Houshmand B,  Itoh T.  FDTD analysis of dielectric resonators with curved surfaces. IEEE Trans Microw Theory Tech, 1997, 45(9): 1645--1649


[15]  Farjadpour A,  Roundy D,  Rodriguez A,  et al. Improving accuracy by subpixel smoothing in the finite-difference time domain. Opt Lett,  2006, 31(20): 2972--2974


[16]   Werner G R, Cary J  R. A stable FDTD algorithm for non-diagonal, anisotropic dielectrics. J Comput Phys, 2007, 226: 1085--1101


[17]  Calhoun D A, Helzel C, LeVeque R J. Logically rectangular grids and finite volume methods for PDEs in circular and spherical domains. 
SIAM Rev, 2008, 50(4): 723--752. doi:http://dx.doi.org/10.1137/060664094.


[18]  Sacks Z S, Kingsland D M,  Lee R,  Lee J -F. A perfectly matched anisotropic absorber for use as an absorbing boundary condition. IEEE Trans Antennas Propag, 1995, 43: 1460--1463


[19]  Gedney S. An anisotropic perfectly matched layer absorbing media for the truncation of FDTD lattices. IEEE Trans Antennas Propag, 1996, 44:  1630--639


[20]  Jackson J D. Classical Electrodynamics. 2nd ed.  New York: Wiley, 1975


[21]  Bohren C  F, Huffman D  R.  Absorption and Scattering of Light by Small Particles. New York: Wiley,  1983

Outlines

/