Diffraction enhanced transparency in a hybrid gold-graphene THz metasurface

S.E.T. ter Huurne, N.J.J. van Hoof, R.H.J. Vervuurt, A. A. Bol, A. Halpin, J. Gomez Rivas

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

Abstract

Diffraction enhanced transparency (DET) is a phenomenon based on interference in periodic lattices of resonators, leading to sharp transmission peaks where the associated anomalous dispersion can be used to delay THz radiation traversing the lattice. In this contribution we use an atomically thin graphene layer to strongly suppress DET altering the THz propagation. The response of this system is investigated both in the far-and near-field, where the suppression of DET can be measured both in the spectral response of the sample and in the changing near-field distributions surrounding the resonators. Changing the properties of the graphene layer allows for control over the transparency window, which is relevant for active THz devices.

Original languageEnglish
Title of host publication2018 43rd International Conference on Infrared Millimeter and Terahertz Waves, IRMMW-THz 2018
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages2
ISBN (Electronic)978-1-5386-3809-5
ISBN (Print)978-1-5386-3810-1
DOIs
Publication statusPublished - 25 Oct 2018
Event43rd International Conference on Infrared Millimeter and Terahertz Waves, IRMMW-THz 2018 - Nagoya, Japan
Duration: 9 Sep 201814 Sep 2018
Conference number: 43

Conference

Conference43rd International Conference on Infrared Millimeter and Terahertz Waves, IRMMW-THz 2018
Abbreviated titleIRMMW-THz
Country/TerritoryJapan
CityNagoya
Period9/09/1814/09/18

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