Bright single photon source based on self-aligned quantum dot-cavity systems
Please always quote using this URN: urn:nbn:de:bvb:20-opus-119801
- We report on a quasi-planar quantum-dot-based single-photon source that shows an unprecedented high extraction efficiency of 42% without complex photonic resonator geometries or post-growth nanofabrication. This very high efficiency originates from the coupling of the photons emitted by a quantum dot to a Gaussian shaped nanohill defect that naturally arises during epitaxial growth in a self-aligned manner. We investigate the morphology of these defects and characterize the photonic operation mechanism. Our results show that these naturallyWe report on a quasi-planar quantum-dot-based single-photon source that shows an unprecedented high extraction efficiency of 42% without complex photonic resonator geometries or post-growth nanofabrication. This very high efficiency originates from the coupling of the photons emitted by a quantum dot to a Gaussian shaped nanohill defect that naturally arises during epitaxial growth in a self-aligned manner. We investigate the morphology of these defects and characterize the photonic operation mechanism. Our results show that these naturally arising coupled quantum dot-defects provide a new avenue for efficient (up to 42% demonstrated) and pure (g(2)(0) value of 0.023) single-photon emission.…
Author: | Sebastian Maier, Peter Gold, Alfred Forchel, Niels Gregersen, Jesper Mork, Sven Höfling, Christian Schneider, Martin Kamp |
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URN: | urn:nbn:de:bvb:20-opus-119801 |
Document Type: | Journal article |
Faculties: | Fakultät für Physik und Astronomie / Physikalisches Institut |
Language: | English |
Parent Title (English): | Optics Express |
ISSN: | 1094-4087 |
Year of Completion: | 2014 |
Volume: | 22 |
Issue: | 7 |
Pagenumber: | 8136-42 |
Source: | Optics Express 22 (2014),7 p.8136-42. DOI: 10.1364/OE.22.008136 |
DOI: | https://doi.org/10.1364/OE.22.008136 |
Pubmed Id: | https://pubmed.ncbi.nlm.nih.gov/24718190,00 |
Sonstige beteiligte Institutionen: | Wilhelm Conrad Röntgen-Center for Complex Material Systems, Würzburg |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 539 Moderne Physik |
Tag: | photon statistics; quantum communications; quantum-well -wire and -dot devices; resonators |
Release Date: | 2015/11/13 |
Licence (German): | Deutsches Urheberrecht |