OSA's Digital Library

Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 31, Iss. 4 — Apr. 1, 2014
  • pp: 691–695

Manipulating propagating graphene plasmons at near field by shaped graphene nano-vacancies

Luping Du and Dingyuan Tang  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. 691-695 (2014)
http://dx.doi.org/10.1364/JOSAA.31.000691


View Full Text Article

Enhanced HTML    Acrobat PDF (631 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Surface plasmons in graphene have many promising properties, such as high confinement, low losses, and gate-tunability. However, it is also the high confinement that makes them difficult to excite due to their large momentum mismatch with free-space mid-infrared light. We propose to use shaped graphene nano-vacancies to compensate for the momentum mismatch, revealing its high flexibility in graphene plasmon (GP) excitation and manipulation. We first examine the electromagnetic standing waves generated with a pair of straight vacancies, in order to verify the excitation of GPs and to illustrate their tunability with gate voltage. Plasmonic lenses are then designed to achieve the super-focusing of mid-infrared light and to generate plasmonic vortices in graphene. A0.0125λ0 hotspot is generated, far below the optical diffraction limit, hence revealing the capability of light control at deep-subwavelength scale.

© 2014 Optical Society of America

OCIS Codes
(130.3060) Integrated optics : Infrared
(220.3630) Optical design and fabrication : Lenses
(240.6680) Optics at surfaces : Surface plasmons
(080.4865) Geometric optics : Optical vortices

ToC Category:
Geometric Optics

History
Original Manuscript: November 12, 2013
Revised Manuscript: January 26, 2014
Manuscript Accepted: January 28, 2014
Published: March 11, 2014

Citation
Luping Du and Dingyuan Tang, "Manipulating propagating graphene plasmons at near field by shaped graphene nano-vacancies," J. Opt. Soc. Am. A 31, 691-695 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-691

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited