Extreme Metaphotonics with Ultra High-Index Topological Insulators

Sukanta Nandi, Danveer Singh, Shany Zrihan Cohen, Tomer Lewi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We experimentally measure the complex dielectric constant of Bi2Se3 and Bi2Te3 topological insulators, revealing record high refractive index values peaking at n≈11. We further demonstrate deep-subwavelength metasurfaces with unit cell sizes smaller than λ/10, that simultaneously support large magnetic and electric field enhancements.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationFundamental Science, CLEO:FS 2023
PublisherOptical Society of America
ISBN (Electronic)9781957171258
DOIs
StatePublished - 2023
EventCLEO: Fundamental Science, CLEO:FS 2023 - Part of Conference on Lasers and Electro-Optics 2023 - San Jose, United States
Duration: 7 May 202312 May 2023

Publication series

NameCLEO: Fundamental Science, CLEO:FS 2023

Conference

ConferenceCLEO: Fundamental Science, CLEO:FS 2023 - Part of Conference on Lasers and Electro-Optics 2023
Country/TerritoryUnited States
CitySan Jose
Period7/05/2312/05/23

Bibliographical note

Publisher Copyright:
© Optica Publishing Group 2023, © 2023 The Author(s)

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