FDTD法对二维正方格子光子晶体带隙的数值计算

胡学美; 沈昱明; 杨毅彪

光学技术, 2013, 39 (3): 256, 网络出版: 2013-05-22

FDTD法对二维正方格子光子晶体带隙的数值计算

The calculating for the two-dimensional square lattice structure of photonic crystals by the FDTD method

论文大纲

胡学美 ^1,*沈昱明 ¹杨毅彪 ²

作者单位

¹ 上海理工大学光电信息与计算机工程学院, 上海 200093

² 太原理工大学理学院物理系, 太原 030024

二维光子晶体完全禁带有限时域差分法 two-dimensional photonic crystal complete band gap the finite-difference time-domain(FDTD)

摘要

通过optiFDTD模拟软件对二维椭圆柱构造的正方格子光子晶体的禁带特性进行了数值模拟。分别研究了在空气中椭圆介质(Ge,Si,GaAs)柱和在介质(Ge,Si,GaAs)中椭圆空气柱构造的二维正方格子光子晶体中椭圆柱的横轴半径和纵轴半径的大小,以及椭圆柱的不同旋转角度对光子禁带的影响; 并计算出了在上述两种情况下的空气和介质中的最优结构参数。

Abstract

The properties of the photonic band gap in the photonic crystals which formed by the elliptical cylinder are simulated using the simulation software named optiFDTD. The impact of the photonic band gap caused by the different horizontal radius and vertical radius or the different rotation of the elliptical cylinder in the square lattice photonic crystals with elliptical cylinder in air background and medium(Ge, Si, GaAs) background are studied. And the optimal parameters of the structures in the air background and in the medium(Ge, Si, GaAs) background are calculated.

参考文献

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胡学美, 沈昱明, 杨毅彪. FDTD法对二维正方格子光子晶体带隙的数值计算[J]. 光学技术, 2013, 39(3): 256. HU Xuemei, SHEN Yuming, YANG Yibiao. The calculating for the two-dimensional square lattice structure of photonic crystals by the FDTD method[J]. Optical Technique, 2013, 39(3): 256.

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