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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 23 — Dec. 1, 2010
  • pp: 4051–4053

Tunable wavelength-division multiplexing based on metallic nanoparticle arrays

Jia Li, Xiaoyong Hu, Ying Gu, and Qihuang Gong  »View Author Affiliations

Optics Letters, Vol. 35, Issue 23, pp. 4051-4053 (2010)

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We report a tunable wavelength-division multiplexing (WDM) structure based on two-dimensional silver nanoparticle arrays. The linewidth of the multiple geometric resonances of the arrays is of the order of several nanometers generally, which guarantees high wavelength selectivity. Optical channels can be selectively activated by setting the polarization of the incident wave. The operation wavelength can be tuned from the visible to the near infrared, and the free spectral range can be adjusted from hundreds to tens of nanometers by varying the size of the constituent particles and the interparticle distances. The proposed structure can provide an extinction ratio of 10 and a quality factor of 700 . This tunable, easy-to-produce, and subwavelength WDM structure is desirable for plasmonic integrated circuits.

© 2010 Optical Society of America

OCIS Codes
(130.1750) Integrated optics : Components
(240.6680) Optics at surfaces : Surface plasmons
(230.4555) Optical devices : Coupled resonators

ToC Category:
Integrated Optics

Original Manuscript: August 19, 2010
Revised Manuscript: October 28, 2010
Manuscript Accepted: November 8, 2010
Published: November 29, 2010

Jia Li, Xiaoyong Hu, Ying Gu, and Qihuang Gong, "Tunable wavelength-division multiplexing based on metallic nanoparticle arrays," Opt. Lett. 35, 4051-4053 (2010)

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