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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 7 — Apr. 8, 2013
  • pp: 7897–7907

Spontaneous emission in paired graphene plasmonic waveguide structures

Lei Zhang, Xiuli Fu, Mei Zhang, and Junzhong Yang  »View Author Affiliations


Optics Express, Vol. 21, Issue 7, pp. 7897-7907 (2013)
http://dx.doi.org/10.1364/OE.21.007897


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Abstract

The coupling between a single emitter and surface plasmons in paired graphene layers and in paired graphene ribbons are studied. For paired graphene layers, the coupling between surface plasmons in graphene layers is strong at low photon energy and small gap between layers, which results in strong enhancement of the emitter’s emission. The excitation efficiency of surface plasmons by a single emitter can be increased to nearly 1 in paired graphene layers. With the increase of the photon energy, emitter’s emission in paired layers is weakened and could be lower than that in graphene monolayer. For graphene paired ribbons, numerical simulations show similar properties of emission enhancement and high excitation efficiency of surface plasmons. The emission enhancement and the excitation efficiency of surface plasmons can be improved by narrowing the ribbon width.

© 2013 OSA

OCIS Codes
(020.5580) Atomic and molecular physics : Quantum electrodynamics
(130.2790) Integrated optics : Guided waves
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: January 24, 2013
Revised Manuscript: March 9, 2013
Manuscript Accepted: March 10, 2013
Published: March 25, 2013

Citation
Lei Zhang, Xiuli Fu, Mei Zhang, and Junzhong Yang, "Spontaneous emission in paired graphene plasmonic waveguide structures," Opt. Express 21, 7897-7907 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-7-7897


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