Photon tunneling into a single-mode planar silicon waveguide

Fang, Liping and Kiang, Kian S. and Alderman, Nicholas P. and Danos, Lefteris and Markvart, Tom (2015) Photon tunneling into a single-mode planar silicon waveguide. Optics Express, 23 (24). A1528-A1532. ISSN 1094-4087

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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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Optics Express
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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.
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17 Feb 2016 09:13
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16 Sep 2023 01:15