Chiral nanosurfaces for enhancement of local electromagnetic field

Lukas Ohnoutek, Ventsislav Valev

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

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The ability of plasmonic nanosurfaces to produce strong electromagnetic fields in their vicinity upon illumination can be used to enhance effects, such as those originating from chirality (lack of mirror symmetry) of molecules. We numerically investigate chiral nanosurfaces composed of plasmonic nanobars with varying packing densities. We identify the optimum illumination conditions for maximal field enhancement. Under these illumination conditions, the optical chirality near the surface exceeds the optical chirality of the incident light by almost an order of magnitude in a large area (200 nm × 200 nm) near the surface. Our simulations prove the nanosurfaces to be promising candidates for enhancement of chiral-optical effects.

Original languageEnglish
Title of host publicationNonlinear Optics and Applications XII
EditorsMario Bertolotti, Anatoly V. Zayats, Alexei M. Zheltikov
ISBN (Electronic)9781510643741
Publication statusPublished - 18 Apr 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


  • Chirality
  • Field enhancement
  • Nanosurface
  • Optical chirality
  • Plasmonics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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