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Nanoscale optical positioning of single quantum dots for bright and pure single-photon emission

Overview of attention for article published in Nature Communications, July 2015
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (97th percentile)
  • High Attention Score compared to outputs of the same age and source (85th percentile)

Mentioned by

news
8 news outlets
blogs
1 blog
twitter
4 X users
patent
3 patents
facebook
1 Facebook page

Citations

dimensions_citation
252 Dimensions

Readers on

mendeley
317 Mendeley
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Title
Nanoscale optical positioning of single quantum dots for bright and pure single-photon emission
Published in
Nature Communications, July 2015
DOI 10.1038/ncomms8833
Pubmed ID
Authors

Luca Sapienza, Marcelo Davanço, Antonio Badolato, Kartik Srinivasan

Abstract

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).

X Demographics

X Demographics

The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 317 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 1 <1%
Vietnam 1 <1%
Brazil 1 <1%
United Kingdom 1 <1%
Argentina 1 <1%
Spain 1 <1%
United States 1 <1%
Unknown 310 98%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 110 35%
Researcher 42 13%
Student > Master 36 11%
Student > Bachelor 15 5%
Student > Doctoral Student 14 4%
Other 37 12%
Unknown 63 20%
Readers by discipline Count As %
Physics and Astronomy 169 53%
Engineering 43 14%
Materials Science 17 5%
Chemistry 6 2%
Agricultural and Biological Sciences 2 <1%
Other 12 4%
Unknown 68 21%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 66. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 February 2022.
All research outputs
#595,615
of 24,010,679 outputs
Outputs from Nature Communications
#10,313
of 50,791 outputs
Outputs of similar age
#7,203
of 266,465 outputs
Outputs of similar age from Nature Communications
#120
of 807 outputs
Altmetric has tracked 24,010,679 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 97th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 50,791 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 56.2. This one has done well, scoring higher than 79% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 266,465 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 97% of its contemporaries.
We're also able to compare this research output to 807 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 85% of its contemporaries.