Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions

Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions

We report on an experimental and computational (multipole decomposition) study of Fano resonance modes in complementary near-IR plasmonic metamaterials. Resonance wavelengths and linewidths can be controlled by changing the symmetry of the unit cell so as to manipulate the balance among multipole co...

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Main Authors: Lim, Wen Xiang, Han, Song, Gupta, Manoj, MacDonald, Kevin F., Singh, Ranjan
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2017
Subjects:
Linewidths
Plasmons
Online Access:https://hdl.handle.net/10356/85454
http://hdl.handle.net/10220/43713
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-854542023-02-28T19:42:04Z Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions Lim, Wen Xiang Han, Song Gupta, Manoj MacDonald, Kevin F. Singh, Ranjan School of Physical and Mathematical Sciences Center for Disruptive Photonic Technologies Linewidths Plasmons We report on an experimental and computational (multipole decomposition) study of Fano resonance modes in complementary near-IR plasmonic metamaterials. Resonance wavelengths and linewidths can be controlled by changing the symmetry of the unit cell so as to manipulate the balance among multipole contributions. In the present case, geometrically inverting one half of a four-slot (paired asymmetric double bar) unit cell design changes the relative magnitude of magnetic quadrupole and toroidal dipole contributions leading to the enhanced quality factor, figure of merit, and spectral tuning of the plasmonic Fano resonance. MOE (Min. of Education, S’pore) Published version 2017-09-11T06:39:34Z 2019-12-06T16:04:00Z 2017-09-11T06:39:34Z 2019-12-06T16:04:00Z 2017 Journal Article Lim, W. X., Han, S., Gupta, M., MacDonald, K. F., & Singh, R. (2017). Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions. Applied Physics Letters, 111(6), 061104-. 0003-6951 https://hdl.handle.net/10356/85454 http://hdl.handle.net/10220/43713 10.1063/1.4997423 en Applied Physics Letters © 2017 American Institute of Physics (AIP). This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: [http://dx.doi.org/10.1063/1.4997423]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 5 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Linewidths
Plasmons
spellingShingle Linewidths
Plasmons
Lim, Wen Xiang
Han, Song
Gupta, Manoj
MacDonald, Kevin F.
Singh, Ranjan
Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions
description We report on an experimental and computational (multipole decomposition) study of Fano resonance modes in complementary near-IR plasmonic metamaterials. Resonance wavelengths and linewidths can be controlled by changing the symmetry of the unit cell so as to manipulate the balance among multipole contributions. In the present case, geometrically inverting one half of a four-slot (paired asymmetric double bar) unit cell design changes the relative magnitude of magnetic quadrupole and toroidal dipole contributions leading to the enhanced quality factor, figure of merit, and spectral tuning of the plasmonic Fano resonance.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Lim, Wen Xiang
Han, Song
Gupta, Manoj
MacDonald, Kevin F.
Singh, Ranjan
format Article
author Lim, Wen Xiang
Han, Song
Gupta, Manoj
MacDonald, Kevin F.
Singh, Ranjan
author_sort Lim, Wen Xiang
title Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions
title_short Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions
title_full Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions
title_fullStr Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions
title_full_unstemmed Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions
title_sort near-infrared linewidth narrowing in plasmonic fano-resonant metamaterials via tuning of multipole contributions
publishDate 2017
url https://hdl.handle.net/10356/85454
http://hdl.handle.net/10220/43713
_version_ 1759855549010149376

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