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首页> 美国政府科技报告 >Classification of Modes in Suspended-Membrane, 19-Missing-Hole Photonic- crystal Microcavities
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Classification of Modes in Suspended-Membrane, 19-Missing-Hole Photonic- crystal Microcavities

机译：悬浮膜，19孔缺失光子晶体微腔的模式分类

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Suspended-membrane 19-missing-hole microcavities in triangular lattice photonic crystals are numerically modeled by a three-dimensional finite- difference time-domain method. The resonance frequencies and the quality factors are calculated by interpolation of the discrete Fourier transformation series of the field with a Pad polynomial. The numerical results are compared with the photoluminescent spectra measured on the cavity of a nearly identical dimension. The symmetry properties of the defect modes are analyzed with the group theory, and resonance modes in the photonic-crystal cavities are identified as irreducible representations of the C6v point group. The far-field radiations of the identified modes in the free space are also calculated by use of a vector Green's function. It is found that the numerical results agree very well with the experimental measurement in various aspects.

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