Open AccessNovel sensing concept based on optical Tamm plasmon
Author(s) -
Wei Li Zhang,
Fen Wang,
Yu Rao,
Jianquan Yao
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.014524
Subject(s) - refractive index , optics , materials science , distributed bragg reflector , plasmon , wavelength , reflection coefficient , dielectric , reflection (computer programming) , optoelectronics , surface plasmon resonance , surface plasmon , nanotechnology , physics , nanoparticle , computer science , programming language
This paper proposes a novel concept of refractive index sensing taking advantage of a high-refractive-index-contrast optical Tamm plasmon (OTP) structure, i.e., an air/dielectric alternate-layered distributed Bragg reflector (DBR) coated with metal. In the reflection spectrum of the structure, a dip related to the formation of OTP appears. The wavelength and reflectivity of this dip are sensitive to variation of ambient refractive index, which provides a potential way to realize refractive index sensing with a large measuring range and high sensitivity.