Surface-enhanced infrared spectroscopy using metal oxide plasmonic antenna arrays
Surface-enhanced infrared spectroscopy using metal oxide plasmonic antenna arrays
We successfully demonstrate surface-enhanced infrared spectroscopy using arrays of indium tin oxide (ITO) plasmonic nanoantennas. The ITO antennas show a strongly reduced plasmon wavelength, which holds promise for ultracompact antenna arrays and extremely subwavelength metamaterials. The strong plasmon confinement and reduced antenna cross section allows ITO antennas to be integrated at extremely high densities with no loss in performance due to long-range transverse interactions. By further reducing the spacing of antennas in the arrays, we access the regime of plasmonic near field coupling where the response is enhanced for both Au and ITO devices. Ultracompact ITO antennas with high spatial and spectral selectivity in spectroscopic applications offer a viable new platform for infrared plasmonics, which may be combined with other functionalities of these versatile materials in devices.
346-352
Abb, Martina
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Wang, Yudong
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Papasimakis, Nikitas
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de Groot, C.H.
92cd2e02-fcc4-43da-8816-c86f966be90c
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
8 January 2014
Abb, Martina
d1aa3add-7761-4c4f-8a3d-7da3084deb33
Wang, Yudong
c48bcc7c-4cb4-468c-af4e-d1e601222009
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
de Groot, C.H.
92cd2e02-fcc4-43da-8816-c86f966be90c
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
Abb, Martina, Wang, Yudong, Papasimakis, Nikitas, de Groot, C.H. and Muskens, Otto L.
(2014)
Surface-enhanced infrared spectroscopy using metal oxide plasmonic antenna arrays.
Nano Letters, 14 (1), .
(doi:10.1021/nl404115g).
Abstract
We successfully demonstrate surface-enhanced infrared spectroscopy using arrays of indium tin oxide (ITO) plasmonic nanoantennas. The ITO antennas show a strongly reduced plasmon wavelength, which holds promise for ultracompact antenna arrays and extremely subwavelength metamaterials. The strong plasmon confinement and reduced antenna cross section allows ITO antennas to be integrated at extremely high densities with no loss in performance due to long-range transverse interactions. By further reducing the spacing of antennas in the arrays, we access the regime of plasmonic near field coupling where the response is enhanced for both Au and ITO devices. Ultracompact ITO antennas with high spatial and spectral selectivity in spectroscopic applications offer a viable new platform for infrared plasmonics, which may be combined with other functionalities of these versatile materials in devices.
Text
abb nanolett ito 131121 compressed.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 10 December 2013
e-pub ahead of print date: 16 December 2013
Published date: 8 January 2014
Organisations:
Optoelectronics Research Centre, Nanoelectronics and Nanotechnology, Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 362790
URI: http://eprints.soton.ac.uk/id/eprint/362790
ISSN: 1530-6984
PURE UUID: 18ca4e9b-e1ba-471f-a3dc-9ae12b2934be
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Date deposited: 10 Mar 2014 12:02
Last modified: 10 Jan 2022 02:55
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Contributors
Author:
Martina Abb
Author:
Yudong Wang
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