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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. 26, Iss. 6 — Jun. 1, 2009
  • pp: 1243–1247

Transmission of a quantum-dot–silicon-on-insulator hybrid notch filter

Iwan Moreels, Bram De Geyter, Dries Van Thourhout, and Zeger Hens  »View Author Affiliations


JOSA B, Vol. 26, Issue 6, pp. 1243-1247 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001243


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Abstract

Colloidal PbS and PbSe quantum dots are mixed with polystyrene and spincoated on top of a silicon-on-insulator microring notch filter. We demonstrate that the light propagating through the ring resonator strongly interacts with the quantum-dot doped thin film. This allows us to efficiently tune the output of the notch filter by varying the quantum-dot size and concentration. As a result, the hybrid devices can exhibit critical coupling only for a single resonance or display a constant extinction ratio over a wide spectral range. Considering the promising nonlinear optical properties of colloidal quantum dots, our results open new pathways for all-optical signal processing applications on a silicon platform.

© 2009 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(160.4236) Materials : Nanomaterials
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Integrated Optics

History
Original Manuscript: December 15, 2008
Revised Manuscript: April 2, 2009
Manuscript Accepted: April 22, 2009
Published: May 26, 2009

Citation
Iwan Moreels, Bram De Geyter, Dries Van Thourhout, and Zeger Hens, "Transmission of a quantum-dot-silicon-on-insulator hybrid notch filter," J. Opt. Soc. Am. B 26, 1243-1247 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-6-1243


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References

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