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Journal of Applied Physics / Volume 106 / Issue 10 / COMMUNICATIONS

J. Appl. Phys. 106, 106101 (2009); http://dx.doi.org/10.1063/1.3253738 (3 pages)

Tunable propagation of light through a coupled-bent dielectric-loaded plasmonic waveguides

Hong-Son Chu, Wei-Bin Ewe, and Er-Ping Li

Advanced Photonics and Plasmonics Group, A*STAR-Institute of High Performance Computing, Singapore 138632, Singapore

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(Received 31 August 2009; accepted 24 September 2009; published online 16 November 2009)

We numerically show that it is easy to tune, both passively and actively, the transmission power delivered at different output ports of two coupled-bent dielectric-loaded plasmonic waveguides by varying the gap distance and refractive index of driven material between two dielectric stripes. We also investigate the near-field intensity to demonstrate that the power transmitted at different output ports can be varied to realize either equal or unequal levels, depending on the design specifications. A simple expression is proposed to predict the power transmitted to different output ports for a set of given dimensions and refractive index of the driven material.

© 2009 American Institute of Physics

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KEYWORDS and PACS

Keywords

dielectric materials, integrated optics, light propagation, optical waveguides, plasmonics, refractive index

PACS

  • 42.79.Gn

    Optical waveguides and couplers

  • 42.82.Et

    Waveguides, couplers, and arrays

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3253738

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

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

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