Refractive-index sensitivities of hybrid surface-plasmon resonances for a core-shell circular silver nanotube sensor

Abstract

We study the scattering and absorption of an $H$-polarized plane electromagnetic wave by a circular silver nanotube in the visible range of wavelengths using the separation of variables. The computed spectra of the extinction cross section display several hybrid localized surface-plasmon resonances of the dipole and multipole type. Analytical equations are derived for their resonance wavelengths. Bulk refractive-index sensitivities of nanotube-based sensors are determined, showing higher values for multipole resonances.

© 2013 Optical Society of America

Theoretical limit of localized surface plasmon resonance sensitivity to local refractive index change and its comparison to conventional surface plasmon resonance sensor

Sergiy J. Zalyubovskiy, Maria Bogdanova, Alexei Deinega, Yurii Lozovik, Andrew D. Pris, Kwang Hyup An, W. Paige Hall, and Radislav A. Potyrailo
J. Opt. Soc. Am. A 29(6) 994-1002 (2012)

Nanoring structure, spacing, and local dielectric sensitivity for plasmonic resonances in Fano resonant square lattices

Gregory T. Forcherio, Phillip Blake, Drew DeJarnette, and D. Keith Roper
Opt. Express 22(15) 17791-17804 (2014)

Enhanced surface plasmon resonance based on the silver nanoshells connected by the nanobars

Yuan-Fong Chau, Yi-Ju Lin, and Din Ping Tsai
Opt. Express 18(4) 3510-3518 (2010)

Study of optical phase transduction on localized surface plasmon resonance for ultrasensitive detection

Chung-Tien Li, How-foo Chen, Ieng-Wai Un, Hsin-Cheng Lee, and Ta-Jen Yen
Opt. Express 20(3) 3250-3260 (2012)

Effects of symmetry breaking on plasmon resonance in a noncoaxial nanotube and nanotube dimer

Haiqing Xu, Hongjian Li, Zhimin Liu, Suxia Xie, Xin Zhou, Xiao Peng, and Xiuke Xu
J. Opt. Soc. Am. A 28(8) 1662-1667 (2011)