Fano resonance based optical modulator reaching 85% modulation depth
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DOI码：10.1063/1.4935031
发表刊物：Applied Physics Letters
摘要：In this paper, we demonstrate the combination of nematic liquid crystal with a binary silicon nanohole array to realize a high performance Fano resonance based optical modulator. The simulations using a finite difference time domain method reveal that the sharp Fano profile in the binary array originates from the interaction of the in-phased and anti-phased lattice collective resonance hybridized through lattice coupling effects. Experimental results agree very well with the simulations and demonstrate the strong dependence of the Q factor and spectral contrast of the resonance on the radius difference of the two nanohole arrays. Infiltrated with nematic liquid crystal, E7, the Fano profile can be dynamically and continuously tuned by an applied voltage, and an unprecedented modulation depth up to 85% is achieved.
合写作者：Junjie Li,Chengchun Tang,Bingyi Liu,Huan Jiang
第一作者：Wenyu Zhao
论文类型：期刊论文
通讯作者：Yongyuan Jiang
论文编号：000364234200009
学科门类：理学
文献类型：J
卷号：107
期号：17
字数：3000
ISSN号：ISSN 0003-6951
是否译文：否
发表时间：2015-10-26
收录刊物：SCI