Effect of plasma resonances on dynamic characteristics of double graphene-layer optical modulator

V. Ryzhii, T. Otsuji, M. Ryzhii, V. G. Leiman, S. O. Yurchenko, V. Mitin, M. S. Shur

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

We analyze the dynamic operation of an optical modulator based on double graphene-layer (GL) structure utilizing the variation of the GL absorption due to the electrically controlled Pauli blocking effect. The developed device model yields the dependences of the modulation depth on the control voltage and the modulation frequency. The excitation of plasma oscillations in double-GL structure can result in the resonant increase of the modulation depth, when the modulation frequency approaches the plasma frequency, which corresponds to the terahertz frequency for the typical parameter values.

Original languageEnglish
Article number104507
JournalJournal of Applied Physics
Volume112
Issue number10
DOIs
Publication statusPublished - 2012 Nov 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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