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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 9 — May. 1, 2013
  • pp: 1585–1587

High-uniformity multichannel plasmonic filter using linearly lengthened insulators in metal–insulator–metal waveguide

Xin Luo, Xihua Zou, Xiaofeng Li, Zhi Zhou, Wei Pan, Lianshan Yan, and Kunhua Wen  »View Author Affiliations


Optics Letters, Vol. 38, Issue 9, pp. 1585-1587 (2013)
http://dx.doi.org/10.1364/OL.38.001585


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Abstract

A high-uniformity multichannel plasmonic filter based on metal–insulator–metal (MIM) waveguide is proposed. It consists of two metal layers and sandwiched multiple insulator super units structured by alternately stacking two insulators with different refractive indices. By linearly lengthening the high refractive index insulators in each super unit, the dispersion-induced loss coefficient can be reduced and flattened, leading to a high uniformity among multiple transmission channels of the plasmonic filter. The corresponding spectral characteristics are numerically investigated by using the finite-difference time-domain method. Fourteen transmission channels with an excellent channel uniformity of ±0.2dB and a peak-to-notch contrast ratio greater than 14.8 dB in the range of 1–2 μm, have been confirmed.

© 2013 Optical Society of America

OCIS Codes
(230.7380) Optical devices : Waveguides, channeled
(240.6680) Optics at surfaces : Surface plasmons
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Optical Devices

History
Original Manuscript: January 23, 2013
Revised Manuscript: February 28, 2013
Manuscript Accepted: April 12, 2013
Published: May 1, 2013

Citation
Xin Luo, Xihua Zou, Xiaofeng Li, Zhi Zhou, Wei Pan, Lianshan Yan, and Kunhua Wen, "High-uniformity multichannel plasmonic filter using linearly lengthened insulators in metal–insulator–metal waveguide," Opt. Lett. 38, 1585-1587 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-9-1585

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