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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4228–4231

Tuning of surface plasmon polaritons beat length in graphene directional couplers

Aldo Auditore, Costantino de Angelis, Andrea Locatelli, and Alejandro B. Aceves  »View Author Affiliations

Optics Letters, Vol. 38, Issue 20, pp. 4228-4231 (2013)

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We investigate the tuning of the coupling of surface plasmon polaritons between two spatially separated graphene layers. We demonstrate that by slightly changing the chemical potential, a graphene coupler can switch from the bar to the cross state; as a consequence, the coupling coefficient in such structures can be easily controlled by means of an applied electrical signal.

© 2013 Optical Society of America

OCIS Codes
(130.1750) Integrated optics : Components
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Integrated Optics

Original Manuscript: July 22, 2013
Revised Manuscript: September 6, 2013
Manuscript Accepted: September 6, 2013
Published: October 14, 2013

Aldo Auditore, Costantino de Angelis, Andrea Locatelli, and Alejandro B. Aceves, "Tuning of surface plasmon polaritons beat length in graphene directional couplers," Opt. Lett. 38, 4228-4231 (2013)

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