A new method based on finite-difference time-domain scheme for computing the band structure of 2D photonic crystals
Chinese Optics Letters, Vol. 3, Issue S1, pp. S205-S207 (2005)
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Abstract
A finite-difference time-domain (FDTD) scheme in Cartesian coordinate system is developed to analyze the guided-wave properties of a class of two-dimensional (2D) photonic crystals formed by square or triangular arrays of metal posts. With the application of the periodic boundary condition, the computing domain can be restricted to a unit cell. A modified Yee's grid is introduced to calculate the dispersive characteristic in the case of triangular lattice. As examples, several classic structures are analyzed, numerical results are compared with the results from other methods, and the agreement is found to be very good. This method can also be extended to the three-dimensioned (3D) case.
© 2005 Chinese Optics Letters
OCIS Codes
(000.4430) General : Numerical approximation and analysis
(310.2790) Thin films : Guided waves
Citation
Juhong Zou, Zheng Liang, and Zongjun Shi, "A new method based on finite-difference time-domain scheme for computing the band structure of 2D photonic crystals," Chin. Opt. Lett. 3, S205-S207 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-S1-S205
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