Refractive Index Sensing with Plasmons in 2D Metals

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

Abstract

In this paper, we show that nano-engineered ultrathin two-dimensional (2D) metal films supporting infrared plasmonic resonances can enable highly responsive refractive index (RI) sensing. Our results reveal the strong dependence of the RI sensitivity on the 2D-metals' thickness. In particular, for a 1-nm-thick analyte layer, a RI sensitivity up to 110 nm/RIU (90 nm/RIU) is observed in atomically thin 2D-In (2D-Ga) nanoribbons exhibiting highly localized plasmonic resonances at mid-infrared wavelengths.

Original languageEnglish (US)
Title of host publication2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1029-1030
Number of pages2
ISBN (Electronic)9781665442282
DOIs
StatePublished - 2023
Event2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Portland, United States
Duration: Jul 23 2023Jul 28 2023

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume2023-July
ISSN (Print)1522-3965

Conference

Conference2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
Country/TerritoryUnited States
CityPortland
Period7/23/237/28/23

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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