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Open AccessArticle

Role of Geometric Shape in Chiral Optics

Freie Universität Berlin, Mathematics Institute, 14195 Berlin, Germany
Zuse Institute Berlin, Computational Nano Optics, 14195 Berlin, Germany
Karlsruhe Institute of Technology, Institut für Theoretische Festkörperphysik, 76131 Karlsruhe, Germany
JCMwave GmbH, 14050 Berlin, Germany
Department of Chemical Engineering, Lousiana State University, Baton Rouge, LA 70803, USA
Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, 28049 Madrid, Spain
Author to whom correspondence should be addressed.
Symmetry 2020, 12(1), 158;
Received: 11 November 2019 / Revised: 31 December 2019 / Accepted: 8 January 2020 / Published: 13 January 2020
(This article belongs to the Special Issue Duality Symmetry)
The distinction of chiral and mirror symmetric objects is straightforward from a geometrical point of view. Since the biological as well as the optical activity of molecules strongly depend on their handedness, chirality has recently attracted high interest in the field of nano-optics. Various aspects of associated phenomena including the influences of internal and external degrees of freedom on the optical response have been discussed. Here, we propose a constructive method to evaluate the possibility of observing any chiral response from an optical scatterer. Based on solely the T-matrix of one enantiomer, planes of minimal chiral response are located and compared to geometric mirror planes. This provides insights into the relation of geometric and optical properties and enables identifying the potential of chiral scatterers for nano-optical experiments. View Full-Text
Keywords: optical chirality; mirror symmetry; helicity; optical scatterer optical chirality; mirror symmetry; helicity; optical scatterer
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Gutsche, P.; Garcia-Santiago, X.; Schneider, P.-I.; McPeak, K.M.; Nieto-Vesperinas, M.; Burger, S. Role of Geometric Shape in Chiral Optics. Symmetry 2020, 12, 158.

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