Confocal microphotoluminescence mapping of coupled and detuned states in photonic molecules
Confocal microphotoluminescence mapping of coupled and detuned states in photonic molecules
复制标题
光子分子中耦合态和失谐态的共焦微光致发光图
DOI：
10.1364/oe.21.016934
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发表时间：
2013-07-15
期刊：
影响因子：
3.8
通讯作者：
Taylor, R. A.
中科院分区：
文献类型：
--
作者：
Brossard, F. S. F.;Reid, B. P. L.;Taylor, R. A.
我们利用共聚焦光致发光显微镜研究了由波导宽度的局部调制所定义的腔体之间的耦合。我们能够在空间上映射出一对强耦合腔(光子分子)的反对称(反键)和对称(键)模的轮廓，并在存在结构无序的情况下跟踪耦合腔系统从强耦合到弱耦合区域。我们还用时域有限差分方法和半解析方法数值研究了无序对这种光子分子的影响，这使得我们能够量化在任一腔中观察到的光的局域化作为失谐的函数。(C)2013年美国光学学会
We study the coupling of cavities defined by the local modulation of the waveguide width using confocal photoluminescence microscopy. We are able to spatially map the profile of the antisymmetric (antibonding) and symmetric (bonding) modes of a pair of strongly coupled cavities (photonic molecule) and follow the coupled cavity system from the strong coupling to the weak coupling regime in the presence of structural disorder. The effect of disorder on this photonic molecule is also investigated numerically with a finite-difference time-domain method and a semi-analytical approach, which enables us to quantify the light localization observed in either cavity as a function of detuning. (C) 2013 Optical Society of America