Tight-binding description of the coupled defect modes in three-dimensional photonic crystals
Tight-binding description of the coupled defect modes in three-dimensional photonic crystals
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DOI：
10.1103/physrevlett.84.2140
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发表时间：
2000-03-06
影响因子：
8.6
通讯作者：
Ozbay, E
中科院分区：
文献类型：
--
作者：
Bayindir, M;Temelkuran, B;Ozbay, E
我们通过实验观察到由于三维光子晶体中渐逝缺陷模式的耦合而导致的本征模式分裂。这种分裂可以通过基于固体物理学中紧束缚（TB）形式主义的经典波模拟的理论得到很好的解释。实验结果用于提取TB参数。实验证明了光子晶体中的新型波导。在整个波导频带内实现了完整的传输。我们还从传输相位测量和 TB 计算中获得了耦合周期性缺陷的波导带的色散关系。
We have experimentally observed the eigenmode splitting due to coupling of the evanescent defect modes in three-dimensional photonic crystals. The splitting was well explained with a theory based on the classical wave analog of the tight-binding (TB) formalism in solid state physics. The experimental results were used to extract the TB parameters. A new type of waveguiding in a photonic crystal, was demonstrated experimentally. A complete transmission was achieved throughout the entire waveguiding band. We have also obtained the dispersion relation for the waveguiding band of the coupled periodic defects from the transmission-phase measurements and from the TB calculations.