title: Surface plasmon optical antennae in the infrared region with high resonant efficiency and frequency selectivity.
abstract: Infrared light has received attention for sensor applications, including fingerprint spectroscopy, in the bioengineering and security fields. Surface plasmon physics enables the operation of a light harvesting optical antenna. Gold nanochains exhibit localized surface plasmon resonance (LSPR) in the infrared region with high frequency selectivity. However, a feasible design for optical antennae with a higher resonant efficiency and frequency selectivity as a function of structural design and periodicity is still unknown. In the present study, we investigated the relationship between the resonant efficiency and frequency selectivity as a function of the structural design of gold nanochains and explored structural periodicity for obtaining highly frequency-selective optical antennae. An optical antenna design with higher resonant efficiency is proposed on the basis of its efficient interaction with non-polarized light.
authors: Kosei
authors: K
authors: Ueno
authors: Quan
authors: Q
authors: Sun
authors: Masahiro
authors: M
authors: Mino
authors: Takumi
authors: T
authors: Itoh
authors: Tomoya
authors: T
authors: Oshikiri
authors: Hiroaki
authors: H
authors: Misawa