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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 7 — Jul. 1, 2011
  • pp: 1616–1621

Analysis of nanoplasmonic wavelength demultiplexing based on metal-insulator-metal waveguides

Hua Lu, Xueming Liu, Yongkang Gong, Dong Mao, and Guoxi Wang  »View Author Affiliations


JOSA B, Vol. 28, Issue 7, pp. 1616-1621 (2011)
http://dx.doi.org/10.1364/JOSAB.28.001616


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Abstract

Nanoplasmonic wavelength demultiplexing (WDM) structures based on metal-insulator-metal waveguides are designed and investigated numerically. The WDM structures possess a series of resonator-based channel drop filters near a bus waveguide. The demultiplexing wavelength of each channel can be tuned by adjusting the geometrical parameters and refractive index of the resonator. The numerical results based on the finite-difference time-domain method can be accurately explained by the resonant theory. Meanwhile, the transmission characteristics of the drop waveguide are influenced by the coupling distance between the resonator and drop/bus waveguides, which can be exactly analyzed by the temporal coupled-mode theory. Additionally, it is found that the drop efficiencies can be improved by a factor of more than 1.8 when a reflection feedback is introduced in the bus waveguide.

© 2011 Optical Society of America

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(130.3120) Integrated optics : Integrated optics devices
(240.6680) Optics at surfaces : Surface plasmons
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 23, 2011
Manuscript Accepted: April 27, 2011
Published: June 6, 2011

Citation
Hua Lu, Xueming Liu, Yongkang Gong, Dong Mao, and Guoxi Wang, "Analysis of nanoplasmonic wavelength demultiplexing based on metal-insulator-metal waveguides," J. Opt. Soc. Am. B 28, 1616-1621 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-7-1616

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