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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" }