Real-space mapping of chiral antennas and metasurfaces

M. Schnell*, P. Sarriugarte, T. Neuman, A. B. Khanikaev, G. Shvets, J. Aizpurua, R. Hillenbrand

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

We present and demonstrate scattering-type near-field microscopy (s-SNOM) with circularly polarized illumination to map the chiral near-field distributions in metal nanostructures. We apply our technique to Archimedean spiral antennas and resolve circular polarization resolved nanofocusing of infrared light. Moreover, we near-field image single-layer chiral metasurfaces and connect the observed near-field response with circular dichroism in the far field. Our technique opens new ways of characterizing optical chirality in the near field of metal nanostructures which will be essential in the future development of chiral antennas and metasurfaces.

Original languageEnglish
Title of host publicationFiO 2016 : Frontiers in Optics
Subtitle of host publicationTechnical Digest
PublisherOSA - The Optical Society
Number of pages2
VolumePart F38-FiO 2016
ISBN (Print)9781943580194
DOIs
Publication statusPublished - 21 Jul 2014
Externally publishedYes
EventFrontiers in Optics, FiO 2016 - Rochester, United States
Duration: 17 Oct 201621 Oct 2016

Other

OtherFrontiers in Optics, FiO 2016
CountryUnited States
CityRochester
Period17/10/1621/10/16

Fingerprint Dive into the research topics of 'Real-space mapping of chiral antennas and metasurfaces'. Together they form a unique fingerprint.

Cite this