Engineering surface lattice resonance of elliptical gold nanodisk array for enhanced strain sensing

Kai Hao Chang, Jiunn Shouh Cheng, Tsan Wen Lu, Po Tsung Lee*

*此作品的通信作者

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)

摘要

We demonstrate an elliptical gold nanodisk array (GNA) for engineering the spectral profile of surface lattice resonance (SLR). The nanodisk’s shape has a great impact on SLR. A small linewidth of 20 nm at an aspect ratio of 1.17 and a large wavelength tuning of 64 nm within 4% strain via different orientations and polarizations is achieved experimentally. The enhanced wavelength response of 6.93 nm per 1% strain variation for elliptical GNA is 2.4 times better than that for general circular GNA. Furthermore, figure of merit of strain sensing for elliptical GNA approaches 5.7 times greater than that for circular GNA.

原文English
頁(從 - 到)33215-33225
頁數11
期刊Optics Express
26
發行號25
DOIs
出版狀態Published - 10 12月 2018

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