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Title: Spontaneous natural optical activity in disordered media
Authors: Pinheiro, F. A.
Fedotov, V. A.
Papasimakis, N.
Zheludev, Nikolay I.
Keywords: Metamaterials
Issue Date: 2017
Source: 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
Series/Report no.: Physical Review B
Abstract: 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.
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.95.220201
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
Rights: © 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: []. 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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