Publication detail

Optical Response of Plasmonic Nanohole Arrays: Comparison of Square and Hexagonal Lattices

EKSIOGLU, Y. CETIN , A. E. PETRÁČEK, J.

Original Title

Optical Response of Plasmonic Nanohole Arrays: Comparison of Square and Hexagonal Lattices

Type

journal article in Web of Science

Language

English

Original Abstract

We theoretically investigate the performance of refractive index sensors, utilizing square and hexagonal arrays of nanoholes, that are based on extraordinary optical transmission (EOT). We numerically compare the refractive index sensitivities of the two lattice geometries and show that the hexagonal array supports larger figure-of-merit values due to its sharper EOT response. Furthermore, the presence of a thin dielectric film that covers the gold surface and mimics a biomolecular layer causes larger spectral shifts within the EOT resonance for the hexagonal array. We also investigate the dependence of the transmission responses on hole radius and demonstrate that hexagonal lattice is highly promising for applications demanding strong light transmission.

Keywords

plasmonics, extraordinary optical transmission, nanoholes, refractive index sensitivity, grating coupling

Authors

EKSIOGLU, Y.; CETIN , A. E.; PETRÁČEK, J.

Released

1. 6. 2016

Publisher

Springer

ISBN

1557-1955

Periodical

Plasmonics

Year of study

11

Number

3

State

United States of America

Pages from

852

Pages to

856

Pages count

6

BibTex

@article{BUT117324,
  author="EKSIOGLU, Y. and CETIN , A. E. and PETRÁČEK, J.",
  title="Optical Response of Plasmonic Nanohole Arrays: Comparison of Square and Hexagonal Lattices",
  journal="Plasmonics",
  year="2016",
  volume="11",
  number="3",
  pages="852--856",
  doi="10.1007/s11468-015-0118-9",
  issn="1557-1955"
}