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Applied Physics Letters / Volume 97 / Issue 8 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 97, 081106 (2010); http://dx.doi.org/10.1063/1.3482939 (3 pages)

Nonlinear plasmonic directional couplers

José R. Salgueiro1,2 and Yuri S. Kivshar2

1Departamento de Física Aplicada, Universidade de Vigo, As Lagoas s/n, 32004 Ourense, Spain
2Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia

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(Received 18 June 2010; accepted 4 August 2010; published online 24 August 2010)

A study on the nonlinear modes of plasmonic directional couplers created by two nonlinear dielectric slot waveguides with metallic claddings is presented. The calculated power diagram shows substantial differences from the case of nonlinear dielectric couplers. The power-dependent switching and the effect of losses on the coupler performance are studied using finite-difference time-domain numerical simulations.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

dielectric waveguides, directional couplers, finite difference time-domain analysis, plasmonics

PACS

  • 84.40.Az

    Waveguides, transmission lines, striplines

  • 85.50.-n

    Dielectric, ferroelectric, and piezoelectric devices

  • 02.70.Bf

    Finite-difference methods

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3482939

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    G. I. Stegeman, C. T. Seaton, J. Ariyasu, R. F. Wallis, and A. A. Maradudin, J. Appl. Phys. 58, 2453 (1985)JAPIAU000058000007002453000001.

    P. B. Johnson and R. W. Christy, Phys. Rev. B 6, 4370 (1972).


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