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Discrete bowtie plasmonic nanoantenna

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Mendez, Javier and González Contreras, Gabriel and Cuadrado Conde, Alexander and Alda, Javier and González Contreras, Francisco Javier (2018) Discrete bowtie plasmonic nanoantenna. In 12th European Conference on Antennas and Propagation (EuCAP 2018). Institution of Engineering and Technology (IET), London. ISBN 978-1-78561-816-1

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Official URL: https://doi.org/10.1049/cp.2018.0506




Abstract

Plasmonic nanoantennas are currently the subject of many theoretical and experimental investigations due to their unique properties and potential applications. In this work, a new type of plasmonic nanoantenna the discrete bowtie nanoantenna is introduced, this new type of nanoantenna is composed of discrete elements which are planar metallic nanodisks of different sizes arranged in the shape of a standard bowtie nanoantenna. In this new geometry, we show numerically and experimentally that a large local field enhancement, higher than its classical counterpart, can be obtained. In addition, it was found that the discrete bowtie nanoantenna provides several resonances at different frequencies as a consequence of its structural geometry, these features provide significant improvements and advantages over the standard bowtie nanoantenna which can be useful for certain applications such as Surface Enhanced Raman Spectroscopy (SERS) and other biosensing techniques.


Item Type:Book Section
Additional Information:

Conference date: 9-13 April 2018

Uncontrolled Keywords:Antenna; Measurement; Propagation; Nanophotonics; Plasmonics; Bow-tie antennas; Nanostructured materials; Planar antennas; Metamaterial antennas; Single antennas; Nanophotonics devices
Subjects:Sciences > Physics > Optics
Medical sciences > Optics > Geometrical and instumental optics
Medical sciences > Optics > Optoelectronics
ID Code:51253
Deposited On:18 Feb 2019 16:33
Last Modified:19 Feb 2019 08:59

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