Open AccessSharp Fano resonance induced by a single layer of nanorods with perturbed periodicity
Author(s) -
Maowen Song,
Hong-Lin Yu,
Changtao Wang,
Na Yao,
Mingbo Pu,
Jun Luo,
Zuojun Zhang,
Xiangang Luo
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.002895
Subject(s) - refractive index , figure of merit , nanorod , optics , fano resonance , q factor , resonance (particle physics) , materials science , surface plasmon resonance , dielectric , optoelectronics , plasmon , physics , nanotechnology , nanoparticle , resonator , particle physics
In this paper, we report the formation of extremely sharp (Quality factor Q~ + ∞) FR in a single layer of dielectric nanorods with perturbed periodicity. The interference between the broadband Fabry-Perot (F-P) resonance and defect induced dark mode results in refractive index sensitivity (S) of 1312.75 nm/RIU and figure of merit (FOM) of 500, offering an excellent platform for biological sensing and detection.