A liquid crystals modulated optical tunable filter based on Fano resonance of Au nanorod trimer

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• 作者：Huan Peng Xin^a ; ^{xinhuanpeng123@163.com} ; Fei Liu^a ; ^{feiliu@tju.edu.cn} ; Guang Jun Ren^{a ⁎} ; ^rgj1@163.com ; Hong Liang Zhao^a ; Jian Quan Yao^b
• 关键词：Fano resonance ; Liquid crystals (LCs) ; Localized surface plasmon resonance ; Nanorods ; Filter
• 刊名：Optics Communications
• 出版年：2017
• 出版时间：15 April 2017
• 年：2017
• 卷：389
• 期：Complete
• 页码：92-96
• 全文大小：741 K
• 卷排序：389

文摘

A novel liquid crystal modulated optical tunable filter is proposed. Au nanorod trimer array shows Fano resonance. The same size of nanorods enables an optical switch controlled by liquid crystals. Thickness of Au trimer is studied for larger switch depth and smaller insertion loss. The geometry parameters and possible experimental structural defects are simulated.