CUED Publications database

Low-bias gate tunable terahertz plasmonic signatures in chemical vapour deposited graphene of varying grain size

Kamboj, VS and Braeuninger-Weimer, P and Kidambi, PR and Jessop, DS and Singh, A and Sibik, J and Ren, Y and Hofmann, S and Axel Zeitler, J and Beere, HE and Ritchie, DA (2016) Low-bias gate tunable terahertz plasmonic signatures in chemical vapour deposited graphene of varying grain size. In: UNSPECIFIED.

Full text not available from this repository.

Abstract

© 2016 SPIE. We report the characterization of centimeter sized graphene field-effect transistors with ionic gating which enables active frequency and amplitude modulation of terahertz (THz) radiation. Chemical vapour deposited graphene with different grain sizes were studied using THz time-domain spectroscopy. We demonstrate that the plasmonic resonances intrinsic to graphene can be tuned over a wide range of THz frequencies by engineering the grain size of the graphene. Further frequency tuning of the resonance, up to ∼65 GHz, is achieved by electrostatic doping via ionic gating. These results present the first demonstration of tuning the intrinsic plasmonic resonances in graphene.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:00
Last Modified: 17 Nov 2017 20:17
DOI: