<link rel="stylesheet" href="styles.cf390c6bfbe7555f.css">

Browsing by Author "Itoh, Takumi"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item type:Item,
    Surface plasmon optical antennae in the infrared region with high resonant efficiency and frequency selectivity
    (2016-08-08)
    Ueno, Kosei
    ;
    Sun, Quan
    ;
    Mino, Masahiro
    ;
    Itoh, Takumi
    ;
    Oshikiri, Tomoya
    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. (C) 2016 Optical Society of America