Open AccessMulti-spectral plasmon induced transparency via in-plane dipole and dual-quadrupole coupling
Author(s) -
Masashi Miyata,
Jumpei Hirohata,
Yusuke Nagasaki,
Junichi Takahara
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.22.011399
Subject(s) - quadrupole , laser linewidth , dipole , plasmon , optics , physics , coupling (piping) , materials science , molecular physics , atomic physics , quantum mechanics , laser , metallurgy
We experimentally demonstrated an approach based on dipole and dual-quadrupole coupling to construct a planar metamaterial supporting multi-spectral plasmon induced transparency. The structure consists of two short silver wires (dipole) and two long silver wires (dual-quadrupole). The in-plane coupling between the dipole and the dual-quadrupole leads to two transmission windows even in the absorbance linewidth of the dipole. This phenomenon is well described and understood by numerical analyses and a classical oscillator model.