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Persistent URL http://purl.org/net/epubs/work/50917
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Record Id 50917
Title Gyrotropy of a Metamolecule: Wire on a Torus
Abstract Sharing topology with numerous organic molecules, a wire helix bend into a torus gives a curious object with a gyrotropic behavior which is far from obvious. While a continuous constant current in opposite sections of the torus would create mutually cancelling contributions to its gyrotropic response, an array of tori can show strong circular dichroism linked to the excitation of standing current waves. Here we present the experimental study of optical activity in a chiral toroidal metamaterial and discuss its response in terms of multipole moments, including the elusive toroidal moment.
Organisation ASTeC , ASTeC-MaRS , CI , STFC
Keywords Physics , 41.20.Jb , 78.20.Ek
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Rev Lett 103 (2009): 093901. doi:10.1103/PhysRevLett.103.093901 Toroidal_PRL.pdf 2009
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