Spontaneous natural optical activity in disordered media

We theoretically demonstrate natural optical activity in disordered ensembles of nonchiral plasmonic resonators. We show that the statistical distributions of rotatory power and spatial dichroism are strongly dependent on the scattering mean free path in diffusive random media. This result is explai...

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Main Authors: Pinheiro, F. A., Fedotov, V. A., Papasimakis, N., Zheludev, Nikolay I.
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2018
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Online Access:https://hdl.handle.net/10356/81340
http://hdl.handle.net/10220/46614
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-813402023-02-28T19:30:53Z Spontaneous natural optical activity in disordered media Pinheiro, F. A. Fedotov, V. A. Papasimakis, N. Zheludev, Nikolay I. School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) Metamaterials Plasmonics DRNTU::Science::Physics We theoretically demonstrate natural optical activity in disordered ensembles of nonchiral plasmonic resonators. We show that the statistical distributions of rotatory power and spatial dichroism are strongly dependent on the scattering mean free path in diffusive random media. This result is explained in terms of the intrinsic geometric chirality of disordered media, as they lack mirror symmetry. We argue that chirality and natural optical activity of disordered systems can be quantified by the standard deviation of both rotatory power and spatial dichroism. Our results are based on microscopic electromagnetic wave transport theory coupled to vectorial Green's matrix method for pointlike scatterers and are independently confirmed by full-wave simulations. Published version 2018-11-09T03:44:25Z 2019-12-06T14:28:46Z 2018-11-09T03:44:25Z 2019-12-06T14:28:46Z 2017 Journal Article Pinheiro, F. A., Fedotov, V. A., Papasimakis, N., & Zheludev, N. I. (2017). Spontaneous natural optical activity in disordered media. Physical Review B, 95(22), 220201(R)-. doi:10.1103/PhysRevB.95.220201 2469-9950 https://hdl.handle.net/10356/81340 http://hdl.handle.net/10220/46614 10.1103/PhysRevB.95.220201 en Physical Review B © 2017 American Physical Society (APS). This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.95.220201]. 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 Metamaterials
Plasmonics
DRNTU::Science::Physics
spellingShingle Metamaterials
Plasmonics
DRNTU::Science::Physics
Pinheiro, F. A.
Fedotov, V. A.
Papasimakis, N.
Zheludev, Nikolay I.
Spontaneous natural optical activity in disordered media
description We theoretically demonstrate natural optical activity in disordered ensembles of nonchiral plasmonic resonators. We show that the statistical distributions of rotatory power and spatial dichroism are strongly dependent on the scattering mean free path in diffusive random media. This result is explained in terms of the intrinsic geometric chirality of disordered media, as they lack mirror symmetry. We argue that chirality and natural optical activity of disordered systems can be quantified by the standard deviation of both rotatory power and spatial dichroism. Our results are based on microscopic electromagnetic wave transport theory coupled to vectorial Green's matrix method for pointlike scatterers and are independently confirmed by full-wave simulations.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Pinheiro, F. A.
Fedotov, V. A.
Papasimakis, N.
Zheludev, Nikolay I.
format Article
author Pinheiro, F. A.
Fedotov, V. A.
Papasimakis, N.
Zheludev, Nikolay I.
author_sort Pinheiro, F. A.
title Spontaneous natural optical activity in disordered media
title_short Spontaneous natural optical activity in disordered media
title_full Spontaneous natural optical activity in disordered media
title_fullStr Spontaneous natural optical activity in disordered media
title_full_unstemmed Spontaneous natural optical activity in disordered media
title_sort spontaneous natural optical activity in disordered media
publishDate 2018
url https://hdl.handle.net/10356/81340
http://hdl.handle.net/10220/46614
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