Publication detail

Extraordinary transmission characteristics of subwavelength nanoholes with rectangular lattice

CETIN , A. E. DRŠATA, M. EKSIOGLU ÖZOK, Y. PETRÁČEK, J.

Original Title

Extraordinary transmission characteristics of subwavelength nanoholes with rectangular lattice

Type

journal article in Web of Science

Language

English

Original Abstract

We investigate the extraordinary light transmission (EOT) properties of nanohole arrays with rectangular lattice for label-free refractive index sensing applications. We show that the deviation within the periodicities along the two axes at the nanohole plane leads to more advantageous spectral quality of EOT signal compared to the conventional square lattice geometries. We introduce a way to further improve the sensitivity of the aperture system by carefully choosing the periodicities. We introduce nanohole arrays with rectangular lattice supporting EOT signals with larger figure-of-merit values as well as enabling much stronger light transmission. We also model a nanohole system covered with a thin dielectric layer, mimicking biomolecules captured on the gold surface, in order to show its biosensing capability. We also show that certain deviation amounts between periodicities create spectral splitting within the EOT signal leading to larger spectral shifts in the presence of a thin dielectric film.

Keywords

plasmonics, nanoholes, extraordinary light transmission, rectangular lattice, label-free biosensing

Authors

CETIN , A. E.; DRŠATA, M.; EKSIOGLU ÖZOK, Y.; PETRÁČEK, J.

Released

1. 7. 2017

Publisher

Springer

ISBN

1557-1955

Periodical

Plasmonics

Year of study

12

Number

3

State

United States of America

Pages from

1

Pages to

7

Pages count

7

BibTex

@article{BUT128024,
  author="CETIN , A. E. and DRŠATA, M. and EKSIOGLU ÖZOK, Y. and PETRÁČEK, J.",
  title="Extraordinary transmission characteristics of subwavelength nanoholes with rectangular lattice",
  journal="Plasmonics",
  year="2017",
  volume="12",
  number="3",
  pages="1--7",
  doi="10.1007/s11468-016-0311-5",
  issn="1557-1955"
}