Chiral nanosurfaces for enhancement of local electromagnetic field

Lukas Ohnoutek; Ventsislav Valev

doi:10.1117/12.2589695

Chiral nanosurfaces for enhancement of local electromagnetic field

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

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Abstract

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 language	English
Title of host publication	Nonlinear Optics and Applications XII
Editors	Mario Bertolotti, Anatoly V. Zayats, Alexei M. Zheltikov
Publisher	SPIE
ISBN (Electronic)	9781510643741
DOIs	https://doi.org/10.1117/12.2589695
Publication status	Published - 18 Apr 2021

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11770
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Keywords

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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Chiral nanosurfaces for enhancement of local electromagnetic field. / Ohnoutek, Lukas; Valev, Ventsislav.
Nonlinear Optics and Applications XII. ed. / Mario Bertolotti; Anatoly V. Zayats; Alexei M. Zheltikov. SPIE, 2021. 1177005 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11770).

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

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note = "Funding Information: V.K.V. acknowledges support from the Royal Society through the University Research Fellowships and the Royal Society grants PEF1\170015 and RGF\EA\180228, as well as the STFC grant ST/R005842/1. L.O. and V.K.V. acknowledge funding and support from the Engineering and Physical Sciences Research Council (EPSRC) Centre for Doctoral Training in Condensed Matter Physics (CDT-CMP), Grant No. EP/L015544/1 and EP/T001046/1. Publisher Copyright: {\textcopyright} 2021 SPIE.",

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AB - 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.

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Chiral nanosurfaces for enhancement of local electromagnetic field

Abstract

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Keywords

ASJC Scopus subject areas

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International Collaboration Awards of the RS - Clean Air

TRANSMUTING GOLD INTO AURIDES FOR ALKali Metal Magnetometry: ALKEMMY

Fellowship - Extended nonlinear meta-chiroptical effects

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Cite this

Chiral nanosurfaces for enhancement of local electromagnetic field

Abstract

Publication series

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Projects

International Collaboration Awards of the RS - Clean Air

TRANSMUTING GOLD INTO AURIDES FOR ALKali Metal Magnetometry: ALKEMMY

Fellowship - Extended nonlinear meta-chiroptical effects

Datasets

Dataset for "Chiral nanosurfaces for enhancement of local electromagnetic field"

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