This Letter presents a split-step (SS) finite-difference time-domain (FDTD) method for the efficient analysis of two-dimensional (2-D) photonic crystals (PhCs) with anisotropic media. The proposed SS FDTD method is formulated with perfectly matched layer boundary conditions and caters for inhomogeneous anisotropic media. Furthermore, the proposed method is derived using the efficient SS1 splitting formulas with simpler right-hand sides that are more efficient and easier to implement. A 2-D PhC cavity with anisotropic media is used as an example to validate the efficiency of the proposed method.
© 2012 Optical Society of America
Original Manuscript: September 1, 2011
Revised Manuscript: November 9, 2011
Manuscript Accepted: November 28, 2011
Published: January 20, 2012
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics
Gurpreet Singh, Eng Leong Tan, and Zhi Ning Chen, "Split-step finite-difference time-domain method with perfectly matched layers for efficient analysis of two-dimensional photonic crystals with anisotropic media," Opt. Lett. 37, 326-328 (2012)