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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 3 — Feb. 1, 2007
  • pp: 235–237

Comparison of cross-talk effects between colloidal quantum dot and conventional waveguides

Ludan Huang, Chia-Jean Wang, and Lih Y. Lin  »View Author Affiliations


Optics Letters, Vol. 32, Issue 3, pp. 235-237 (2007)
http://dx.doi.org/10.1364/OL.32.000235


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Abstract

We present cross-talk calculations for a subdiffraction nanophotonic waveguide that consists of a colloidal quantum dot (QD) array 10 nm in diameter and compare the results with conventional continuous dielectric waveguides, assuming the same 10 nm size as well as a 200 nm cutoff diameter for guided mode. We find that the QD cascade has much lower cross talk than 10 nm dielectric waveguides at an identical separation > 30 nm . Moreover, results for 200 nm dielectric waveguides at a 280 nm gap are comparable with those of QD structures spaced 110 nm apart. Hence the proposed QD device is potentially superior to conventional waveguides in achieving lower cross talk in the subdiffraction regime and provides a new route to achieving high-density photonic integrated circuits.

© 2007 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

History
Original Manuscript: July 31, 2006
Revised Manuscript: October 20, 2006
Manuscript Accepted: October 23, 2006
Published: January 12, 2007

Citation
Ludan Huang, Chia-Jean Wang, and Lih Y. Lin, "Comparison of cross-talk effects between colloidal quantum dot and conventional waveguides," Opt. Lett. 32, 235-237 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-3-235


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