Modified spontaneous emission rate in three-dimensional layer-by-layer photonic crystals with planar defects

被引:5
作者
Chen, Ji-Feng [2 ]
Hong, Rong-Tai [3 ]
Yang, Jaw-Yen [1 ]
机构
[1] Natl Taiwan Univ, Ctr Quantum Sci & Engn, Taipei 106, Taiwan
[2] Ind Technol Res Inst, Dept Optoelect Applicat, Hsinchu 310, Taiwan
[3] Univ Sci & Technol China, Dept Mech Engn, Taipei 115, Taiwan
关键词
finite difference time-domain analysis; luminescence; optical multilayers; photonic crystals; MAXWELLS EQUATIONS;
D O I
10.1063/1.3279659
中图分类号
O59 [应用物理学];
学科分类号
摘要
A finite three-dimensional layer-by-layer photonic crystal with planar defects in a layer is shown to drastically modify the spontaneous emission rate of an embedded dipole. Finite-difference time-domain calculations with one quarter symmetric boundary condition and perfectly matched layer demonstrate the strong enhancement effects induced by the cavity resonance of defect modes and band-edge resonant modes. Simulation shows that the emission spectra are quite different when the position or polarization of the dipole is changed. Moreover, the extraction efficiency is calculated to observe the percentage of light leakage through a substrate.
引用
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页数:9
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