Open AccessTransmission phase control by stacked metal-dielectric hole array with two-dimensional geometric design
Author(s) -
Takayuki Matsui,
Hideki T. Miyazaki,
Atsushi Miura,
Tsuyoshi Nomura,
Hisayoshi Fujikawa,
K. Sato,
Naoki Ikeda,
Daiju Tsuya,
Masayuki Ochiai,
Yoshimasa Sugimoto,
Masanori Ozaki,
Masanori Hangyo,
Kiyoshi Asakawa
Publication year - 2012
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.20.016092
Subject(s) - optics , surface plasmon polariton , wavefront , materials science , extraordinary optical transmission , phase (matter) , dielectric , surface plasmon , transmission (telecommunications) , resonance (particle physics) , transmission coefficient , interferometry , beam steering , dispersion (optics) , surface plasmon resonance , beam (structure) , plasmon , physics , optoelectronics , telecommunications , atomic physics , quantum mechanics , computer science , nanoparticle , nanotechnology
Transmission phase control is experimentally demonstrated using stacked metal-dielectric hole arrays with a two-dimensional geometric design. The transmission phase varies drastically with small frequency shifts due to structural resonances. Laterally propagating surface plasmon polaritons excited by the periodic hole array roughly determine the resonance frequency, whereas localized resonances in each hole determine the dispersion. The transmission phase at various frequencies is directly evaluated using interferometric microscopy, and the formation of an inclined wavefront is demonstrated using a beam steering element in which the hole shapes gradually change in-plane from square to circular.