Topological effects in plasmonic metasurfaces

Research output: Contribution to journalConference articlepeer-review

Abstract

Light-matter interactions in chiral structure can induce strong polarization selectivity. Specifically, an optical activity in a form of polarization rotation and a circular dichroism may be controlled by the the mirror symmetry breaking of the unit-cell geometry. We design and experimentally investigate plasmonic metasurfaces with spatially varying chiral geometry and demonstrate how this architecture may lead to a geometric Berry phase. Our designed structure produces a polarizationdependent diffraction of nearly linear states. We experimentally examine the diffraction orders and show that they are topological in nature. Moreover, the influence of various geometrical factors is also investigated.

Original languageEnglish
Pages (from-to)382-384
Number of pages3
JournalInternational Conference on Metamaterials, Photonic Crystals and Plasmonics
StatePublished - 2022
Event12th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2022 - Torremolinos, Spain
Duration: 19 Jul 202222 Jul 2022

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Materials Science (miscellaneous)
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

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