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  • Photon tunneling into a single-mode planar silicon waveguide

    Rights statement: © 2015 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.

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Photon tunneling into a single-mode planar silicon waveguide

Research output: Contribution to journalJournal article

Published
  • Liping Fang
  • Kian S. Kiang
  • Nicholas P. Alderman
  • Lefteris Danos
  • Tom Markvart
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<mark>Journal publication date</mark>30/11/2015
<mark>Journal</mark>Optics Express
Issue number24
Volume23
Number of pages5
Pages (from-to)A1528-A1532
Publication statusPublished
Early online date8/10/15
Original languageEnglish

Abstract

We demonstrate the direct excitation of a single TE mode in 25 nm thick planar crystalline silicon waveguide by photon tunneling from a layer of fluorescent dye molecules deposited by the Langmuir-Blodgett technique. The observed photon tunneling rate as a function of the dye- silicon separation is well fitted by a theoretical tunneling rate, which is obtained via a novel approach within the framework of quantum mechanics. We suggest that future ultrathin crystalline silicon solar cells can be made efficient by simple light trapping structures consisting of molecules on silicon.

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© 2015 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.