Enhancement of spontaneous emission from the resonant modes of a photonic crystal slab single-defect cavity
Enhancement of spontaneous emission from the resonant modes of a photonic crystal slab single-defect cavity
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DOI：
10.1364/ol.28.002390
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发表时间：
2003-12-01
期刊：
影响因子：
3.6
通讯作者：
Notomi, M
中科院分区：
文献类型：
--
作者：
Ryu, HY;Notomi, M
用时域有限差分法研究了光子晶体单缺陷共振模中自发辐射寿命的修正。考虑有限发射极线宽和光谱失谐的影响，我们研究了六角晶格腔的双模式和偶极模式的自发辐射增强。当发射极线宽与谐振模线宽相当时，从高品质因数的单模模式数值上实现了>50的大的自发发射增强。然而，如果使用宽线宽材料并且包括失谐效应，则具有低品质因子和较小模式体积的偶极模式对于自发发射增强可能更有利。(C)2003年美国光学学会。
Modification of the spontaneous-emission lifetime in photonic crystal single-defect resonant modes is studied with the finite-difference time domain method. We investigate spontaneous-emission enhancement from the monopole and the dipole modes of a hexagonal lattice cavity, considering the effects of the finite emitter linewidth and spectral detuning. Large spontaneous-emission enhancement of >50 is achieved numerically from the high-quality-factor monopole mode when the emitter linewidth is comparable with the resonant-mode linewidth. However, if broad-linewidth material is used and a detuning effect is included, the dipole mode with a low quality factor and a smaller mode volume could be more advantageous for spontaneous-emission enhancement. (C) 2003 Optical Society of America.