The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.
Nanoscale optical positioning of single quantum dots for bright and pure single-photon emission
Open accessAbstract
Self-assembled, epitaxially grown InAs/GaAs quantum dots (QDs) are promising semiconductor quantum emitters that can be integrated on a chip for a variety of photonic quantum information science applications. However, self-assembled growth results in an essentially random in-plane spatial distribution of QDs, presenting a challenge in creating devices that exploit the strong interaction of single QDs with highly confined optical modes. Here, we present a photoluminescence imaging approach for locating single QDs with respect to alignment features with an average position uncertainty <30 nm (<10 nm when using a solid-immersion lens), which represents an enabling technology for the creation of optimized single QD devices. To that end, we create QD single-photon sources, based on a circular Bragg grating geometry, that simultaneously exhibit high collection efficiency (48%±5% into a 0.4 numerical aperture lens, close to the theoretically predicted value of 50%), low multiphoton probability (g(2)(0) <1%), and a significant Purcell enhancement factor (≈3).
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Cites
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Self-citationIndistinguishable photons from a single-photon device
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Bright single-photon sources in bottom-up tailored nanowires
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Cited by
Solid-state single-photon emitters
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High-performance semiconductor quantum-dot single-photon sources
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Large-scale integration of artificial atoms in hybrid photonic circuits
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Metadata
- Authors
- Sapienza, L., Davanço, M., Badolato, A., & Srinivasan, K.
- Venue
- Nature Communications
- Published
- 2015-07-27
- Volume
- 6
- Issue
- 1
- Pages
- 7833-7833
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2259897443
- Cited by
- 344
- References
- 38
- FWCI
- 15.12
- Type
- journal article
- Language
- en
- Open access
- gold
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