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    Macroscopic Vortex-Induced Optical Activity in Silver Nanowires

    Year: 2019

    Journal: J. Phys. Chem. C, Volume 123, 1-Jun, page 15307–15313

    Authors: Kehoe, Daniel K.; McCarthy, Joseph; Gough, John J.; Bradley, A. Louise; Gun'ko, Yurii K.

    Organizations: School of Chemistry (Trinity College Dublin); Science Foundation Ireland (SFI)Science Foundation Ireland [12/IA/1300, 16/IA/4550]; Bioeconomy SFI Research Centre [SFI 16/RC/3889]

    In this paper, for the first time, we present vortex induced optical activity in Ag nanowires. We demonstrate that the handedness of the observed optical activity depends on the orientation of the applied vortex. Using alignment studies on the Ag nanowires, we further confirm that the optical activity is due to the orientation and motion of the Ag NWs within the intrinsically chiral vortex. Our results provide fundamental insights in the behavior of nanowires in solution and understanding of optical activity in one-dimensional nanostructures.
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