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| 平板光子晶体微腔缺陷模的计算 | |
| 引用本文： | 黄勇刚,范桁,王雪华.平板光子晶体微腔缺陷模的计算[J].计算物理,2011,28(5):749-754. |
| 作者姓名： | 黄勇刚 范桁 王雪华 |
| 作者单位： | 1. 中国科学院物理研究所,北京凝聚态物理国家实验室,北京100190;中山大学,光电材料与技术国家重点实验室,广东广州510275 2. 中国科学院物理研究所,北京凝聚态物理国家实验室,北京100190 3. 中山大学,光电材料与技术国家重点实验室,广东广州510275 |
| 基金项目： | 国家自然科学基金(10725420)资助项目 |
| 摘 要： | 采用时域有限差分方法结合群论知识,得到平板光子晶体微腔的缺陷模分布.采用对称化边界条件,首先通过宽频脉冲求解微腔所具有的缺陷频率,其次,对于确定缺陷频率,采用窄频脉冲保证只能激发所要求解的一个模式,将空间的电磁场值进行离散傅立叶变换求解其模场分布.计算结果表明,该方法能求解出微腔所有的缺陷模式. |
| 关 键 词： | 平板光子晶体缺陷模 有效模体积 时域有限差分 |
Computation of Defect Modes in a Photonic Crystal Slab Cavity |
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| HUANG Yonggang,FAN Heng,WANG Xuehua.Computation of Defect Modes in a Photonic Crystal Slab Cavity[J].Chinese Journal of Computational Physics,2011,28(5):749-754. | |
| Authors: | HUANG Yonggang FAN Heng WANG Xuehua |
| Institution: | HUANG Yonggang1,2,FAN Heng1,WANG Xuehua1,2(1.Beijing National Laboratory for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China,2.State Key Laboratory of Optoelectronic Materials and Technologies,Sun Yat-sen University Guangzhou 510275,China) |
| Abstract: | Defect modes in a photonic crystal slab cavity are calculated with finite difference time domain method and group theory.Using symmetry boundary condition,all frequencies of defect modes are obtained through dipole driving-sources with a broadband pulse.For one given frequency of defect mode,we use one narrowband pulse to excite one single defect mode.Numerical results show that all defect modes with different symmetries can be obtained with this method. |
| Keywords: | defect mode of photonic crystal slab cavity effective mode volume finite difference time domain |
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