Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-5690
Authors: Schäferling, Martin
Yin, Xinghui
Giessen, Harald
Title: Formation of chiral fields in a symmetric environment
Issue Date: 2012
metadata.ubs.publikation.typ: Zeitschriftenartikel
metadata.ubs.publikation.source: Optics express 20 (2012), S. 26326-26336. URL http://dx.doi.org/10.1364/OE.20.026326
URI: http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-96113
http://elib.uni-stuttgart.de/handle/11682/5707
http://dx.doi.org/10.18419/opus-5690
Abstract: Chiral fields, i. e., electromagnetic fields with nonvanishing optical chirality, can occur next to symmetric nanostructures without geometrical chirality illuminated with linearly polarized light at normal incidence. A simple dipole model is utilized to explain this behavior theoretically. Illuminated with circularly polarized light, the chiral near-fields are still dominated by the distributions found for the linear polarization but show additional features due to the optical chirality of the incident light. Rotating the angle of linear polarization introduces more subtle changes to the distribution of optical chirality. Using our findings, we propose a novel scheme to obtain chiroptical far-field response using linearly polarized light, which could be utilized for applications such as optical enantiomer sensing.
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