Asymmetric diffraction from regular, quasi-random fractal planar chiral nanostructures


Papakostas, A., Schwanecke, A.S., Potts, A., Prosvirnin, S.L., Bagnall, D.M. and Zheludev, N.I. (2004) Asymmetric diffraction from regular, quasi-random fractal planar chiral nanostructures. In, Photon '04 / QEP-16, Glasgow, UK, 06 - 09 Sep 2004.

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Description/Abstract

Planar chiral structures are an intriguing new type of optical meta-material which offer the possibility of effective manipulation of the polarization state of light in the far and near fields, as well as manifesting a range of new phenomena such as 2D optical activity. They also promise intriguing new properties such as nonreciprocal diffraction and time non-reversal light scattering. In addition, we have developed a new continuous chirality measure and, for the first time, simultaneously evaluated the chirality of diffraction gratings and of the corresponding field distribution of light diffracted from them. We also define symmetry groups for both the arrays and their corresponding diffraction patterns. The experimental results are compared with computer simulations of scattered field.

Item Type: Conference or Workshop Item (Paper)
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Subjects: Q Science
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 57764
Date Deposited: 11 Aug 2008
Last Modified: 27 Mar 2014 18:40
URI: http://eprints.soton.ac.uk/id/eprint/57764

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