Tuning of Plasmonic Resonances in the Near Infrared Spectrum Using a Double Coaxial Aperture Array

Sun, M, Kavehei, O, Beckett, P, Robert, A, Shieh, W and Unnithan, R 2018, 'Tuning of Plasmonic Resonances in the Near Infrared Spectrum Using a Double Coaxial Aperture Array', IEEE Photonics Journal, vol. 10, no. 6, pp. 1-9.


Document type: Journal Article
Collection: Journal Articles

Title Tuning of Plasmonic Resonances in the Near Infrared Spectrum Using a Double Coaxial Aperture Array
Author(s) Sun, M
Kavehei, O
Beckett, P
Robert, A
Shieh, W
Unnithan, R
Year 2018
Journal name IEEE Photonics Journal
Volume number 10
Issue number 6
Start page 1
End page 9
Total pages 9
Publisher IEEE
Abstract Plasmonic filters are excellent candidates for spectral filters in the near infrared spectrum. Such filters require only a single nanoscale thickness perforated metal film that can be tailored to tune the location of the transmission maximum. Here, we demonstrate using computational methods a double coaxial aperture array (DAA) in a hexagonal geometry that can be tuned to produce plasmon resonances accompanied by strong transmission in the near-infrared spectrum and at telecommunication wavelengths with a peak wavelength insensitive to angle of incidence. The DAA consists of two concentric annular apertures and radial distance between the two apertures is varied to tune the resonant wavelength. The presented geometry finds potential applications in modulators for telecommunication, spectroscopy, solar cells, high-resolution CMOS image sensors, chemical sensors, and biosensors.
Subject Microelectronics and Integrated Circuits
Keyword(s) nanophotonics
photonic filters
Plasmonics
subwavelength structures
DOI - identifier 10.1109/JPHOT.2018.2876898
Copyright notice © 2018 IEEE
ISSN 1943-0655
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