Guo Shangping, Wu Feng, Albin Sacharia, Rogowski Robert
Opt Express. 2004 Apr 19;12(8):1741-6. doi: 10.1364/opex.12.001741.
A finite-difference frequency-domain (FDFD) method is applied for photonic band gap calculations. The Maxwell's equations under generalized coordinates are solved for both orthogonal and non-orthogonal lattice geometries. Complete and accurate band gap information is obtained by using this FDFD approach. Numerical results for 2D TE/TM modes in square and triangular lattices are in excellent agreements with results from plane wave method (PWM). The accuracy, convergence and computation time of this method are also discussed.
一种有限差分频域（FDFD）方法被应用于光子带隙计算。针对正交和非正交晶格几何结构，求解广义坐标下的麦克斯韦方程组。通过使用这种FDFD方法可获得完整且准确的带隙信息。方形和三角形晶格中二维TE/TM模式的数值结果与平面波方法（PWM）的结果高度吻合。还讨论了该方法的精度、收敛性和计算时间。
