The aspect ratio effect on plasmonic properties and biosensing of bonding mode in gold elliptical nanoring arrays

Chia Yang Tsai, Kai Hao Chang, Che Yao Wu, Po-Tsung Lee*

*Corresponding author for this work

研究成果: Article

19 引文 斯高帕斯(Scopus)

摘要

We investigate both numerically and experimentally the optical properties and biosensing of gold elliptical nanoring (ENR) arrays with various aspect ratios. The gold ENR exhibits a strong localized surface plasmon bonding mode in near-infrared region, whose peak wavelength is red-shifted as increasing the aspect ratio under longitudinal and transverse polarizations. Furthermore, the disk- and hole-like optical properties for longitudinal and transverse modes are observed, which cause different behaviors in field intensity enhancement. For biomolecule sensing, we find that both modes show increased surface sensitivities when enlarging the aspect ratio of gold ENR.

原文English
頁(從 - 到)14090-14096
頁數7
期刊Optics Express
21
發行號12
DOIs
出版狀態Published - 1 一月 2013

指紋 深入研究「The aspect ratio effect on plasmonic properties and biosensing of bonding mode in gold elliptical nanoring arrays」主題。共同形成了獨特的指紋。

  • 引用此