Helicene-SPP-Based Chiral Plasmonic Hybrid Structure

Toward Direct Enantiomers SERS Discrimination

Yevgeniya Kalachyova, Olga Guselnikova, Roman Elashnikov, Illia Panov, Jaroslav Žádný, Vladimir Církva, Jan Storch, Jan Sykora, Kamil Zaruba, Vaclav Švorčík, Oleksiy Lyutakov

Research output: Contribution to journalArticle

Abstract

Achieving chiral plasmon response based on the combination of achiral plasmonic nanostructures with highly chiral surrounding medium represents an attractive way for creation of hybrid optically active plasmonic materials. In this work, we present an attractive design and fabrication of chiral plasmon substrates based on a surface plasmon-polariton-supported structure coupled with extremely optically active helicene enantiomers. Such approach allows us to excite chiral plasmon waves and to design optically active surface-enhanced Raman spectroscopy substrates. Its further combination with standard Raman spectroscopy makes possible enantioselective detection/recognition of optical enantiomers with detection limits below those of standard spectral techniques. The chiral optical response of new plasmonic system was observed and controlled by the optical rotation of helicenes. Without necessity of previous chiral separation or implementation of sophisticated experimental equipment, we were able to estimate the concentration of enantiomers in their mixture by using left- or right-handed chiral plasmon substrates.

Original languageEnglish
Pages (from-to)1555-1562
Number of pages8
JournalACS Applied Materials and Interfaces
Volume11
Issue number1
DOIs
Publication statusPublished - 9 Jan 2019

Fingerprint

Enantiomers
Raman spectroscopy
Substrates
Optical rotation
Nanostructures
Fabrication

Keywords

  • chiral SERS
  • circular plasmon
  • enantiomers recognition
  • helicene
  • surface plasmon-polariton

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Helicene-SPP-Based Chiral Plasmonic Hybrid Structure : Toward Direct Enantiomers SERS Discrimination. / Kalachyova, Yevgeniya; Guselnikova, Olga; Elashnikov, Roman; Panov, Illia; Žádný, Jaroslav; Církva, Vladimir; Storch, Jan; Sykora, Jan; Zaruba, Kamil; Švorčík, Vaclav; Lyutakov, Oleksiy.

In: ACS Applied Materials and Interfaces, Vol. 11, No. 1, 09.01.2019, p. 1555-1562.

Research output: Contribution to journalArticle

Kalachyova, Yevgeniya ; Guselnikova, Olga ; Elashnikov, Roman ; Panov, Illia ; Žádný, Jaroslav ; Církva, Vladimir ; Storch, Jan ; Sykora, Jan ; Zaruba, Kamil ; Švorčík, Vaclav ; Lyutakov, Oleksiy. / Helicene-SPP-Based Chiral Plasmonic Hybrid Structure : Toward Direct Enantiomers SERS Discrimination. In: ACS Applied Materials and Interfaces. 2019 ; Vol. 11, No. 1. pp. 1555-1562.
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