Designs for high-efficiency electrically pumped photonic nanowire single-photon sources
We propose and analyze three electrically-pumped nanowire single-photon source structures, which achieve output efficiencies of more than 80%. These structures are based on a quantum dot embedded in a photonic nanowire with carefully tailored ends and optimized contact electrodes. Contrary to conven...
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Veröffentlicht in: | Optics express 2010-09, Vol.18 (20), p.21204-21218 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We propose and analyze three electrically-pumped nanowire single-photon source structures, which achieve output efficiencies of more than 80%. These structures are based on a quantum dot embedded in a photonic nanowire with carefully tailored ends and optimized contact electrodes. Contrary to conventional cavity-based sources, this non-resonant approach provides broadband spontaneous emission control and features an improved fabrication tolerance towards surface roughness and imperfections. Using an element-splitting approach, we analyze the various building blocks of the designs with respect to realistic variations of the experimental fabrication parameters. |
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ISSN: | 1094-4087 1094-4087 |
DOI: | 10.1364/oe.18.021204 |