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Enhancement of Chiral Fields by Geometrically Chiral Structures

  • Martin SchäferlingEmail author
Chapter
Part of the Springer Series in Optical Sciences book series (SSOS, volume 205)

Abstract

It is expected that geometrically chiral plasmonic nanostructures can enhance the intrinsic optical chirality of circularly polarized light. Therefore, we analyze the chiral near-field response of different chiral nanostructures illuminated with circularly polarized light in this chapter. We show that properly designed planar geometrically chiral nanostructures can result in a natural spatial separation of chiral near-fields with opposite handedness. Three-dimensional geometrically chiral nanostructures, on the other hand, interact strongest with one preferred handedness of the incident light and can lead to chiral hot-spots, where particularly high optical chirality occurs. Based on these findings, we provide basic design principles for chiral plasmonic near-field sources based on geometrically chiral nanostructures.

Keywords

Incident Polarization Chiral Structure Plasmonic Nanostructures Polarization Conversion Particle Plasmon 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  1. 1.4th Physics InstituteUniversity of StuttgartStuttgartGermany

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