MM-Wave-to-THz Modulation With Graphene-Oxide-Silicon Etalon Structures

W. D. Zhang, P. H.Q. Pham, E. R. Brown, P. J. Burke

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

Abstract

This paper presents both numerical modeling and experimental demonstration of a MM-wave-to-THz amplitude modulator based on a graphene-oxide-silicon etalon structure. The silicon substrate not only supports back gate bias but also acts as Fabry-Perot etalon resonant cavity for perpendicular-incident radiation. Graphene deposited on one surface of the etalon provides a tunable sheet conductance and etalon transmittance under gate bias. A 1.4-dB depth-of-modulation is measured with a 101 GHz setup, and modulation of 530 GHz radiation is also demonstrated. In all cases, the modulator behaves linearly with respect to gate bias and is easy to use because of its large aperture (∼ 1 square cm) and transmission-mode operation.
Original languageEnglish
Title of host publicationPIERS 2015 Prague - Progress In Electromagnetics Research Symposium, Proceedings
PublisherElectromagnetics Academy
Pages1192-1195
Number of pages4
ISBN (Electronic)9781934142301
StatePublished - 2015

Publication series

NameProgress in Electromagnetics Research Symposium
Volume2015-January
ISSN (Print)1559-9450
ISSN (Electronic)1931-7360

ASJC Scopus Subject Areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Disciplines

  • Physics

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