Observation of entanglement between a quantum dot spin and a single photon

Nature ◽  
2012 ◽  
Vol 491 (7424) ◽  
pp. 426-430 ◽  
Author(s):  
W. B. Gao ◽  
P. Fallahi ◽  
E. Togan ◽  
J. Miguel-Sanchez ◽  
A. Imamoglu
Keyword(s):  
Quantum Dot ◽  
Single Photon

scholarly journals Tailoring the Geometry of Bottom-Up Nanowires: Application to High Efficiency Single Photon Sources

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1201
Author(s):  
Dan Dalacu ◽  
Philip J. Poole ◽  
Robin L. Williams
Keyword(s):  
Quantum Dot ◽  
High Efficiency ◽  
Emission Rate ◽  
Single Photon ◽  
Collection Efficiency ◽  
Photon Emission ◽  
Device Performance ◽  
Bottom Up ◽  
Selective Area ◽  
Photon Generation

For nanowire-based sources of non-classical light, the rate at which photons are generated and the ability to efficiently collect them are determined by the nanowire geometry. Using selective-area vapour-liquid-solid epitaxy, we show how it is possible to control the nanowire geometry and tailor it to optimise device performance. High efficiency single photon generation with negligible multi-photon emission is demonstrated using a quantum dot embedded in a nanowire having a geometry tailored to optimise both collection efficiency and emission rate.

scholarly journals Pure single-photon emission from an InGaN/GaN quantum dot

APL Materials ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 061106
Author(s):  
M. J. Holmes ◽  
T. Zhu ◽  
F. C.-P. Massabuau ◽  
J. Jarman ◽  
R. A. Oliver ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Single Photon ◽  
Photon Emission ◽  
Single Photon Emission

Quantum dot single photon sources with ultra-low multi-photon error rate

2018 ◽  
Author(s):  
Lukas Hanschke ◽  
Kevin A. Fischer ◽  
Stefan Appel ◽  
Daniil Lukin ◽  
Jonathan J. Finley ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Error Rate ◽  
Single Photon ◽  
Photon Sources

An electrically injected quantum dot spin polarized single photon source

2010 ◽  
Vol 96 (10) ◽  
pp. 101105 ◽  
Author(s):  
Pallab Bhattacharya ◽  
Ayan Das ◽  
Debashish Basu ◽  
Wei Guo ◽  
Junseok Heo
Keyword(s):  
Quantum Dot ◽  
Single Photon ◽  
Single Photon Source ◽  
Spin Polarized ◽  
Photon Source

scholarly journals Bright Single-Photon Sources Based on Anti-Reflection Coated Deterministic Quantum Dot Microlenses

Technologies ◽  
2015 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Peter Schnauber ◽  
Alexander Thoma ◽  
Christoph Heine ◽  
Alexander Schlehahn ◽  
Liron Gantz ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Single Photon ◽  
Photon Sources

The coupling of single-photon exciton–biexciton quantum dot and cavity

2017 ◽  
Vol 26 (03) ◽  
pp. 1750029 ◽  
Author(s):  
Lina Jaya Diguna ◽  
Yudi Darma ◽  
Muhammad Danang Birowosuto
Keyword(s):  
Correlation Function ◽  
Quantum Dot ◽  
Density Matrix ◽  
High Probability ◽  
Single Photon ◽  
Photon Emission ◽  
Emission Properties ◽  
Proposed Model ◽  
Cavity System

We investigate the influence of multiple excitons on the photon emission properties of a quantum dot (QD)-cavity system via the master equation for the density matrix. We show that in the intermediate to strong coupling regimes, the multiple excitons lead to the suppressed QD emissions as well as the absence of anti-crossing near zero detuning, arising from the interaction between the multiple excitons and cavity. Furthermore, we analyze the role of the cavity-biexciton detuning in the photon emission properties of cavity and exciton through the second-order correlation function. The small cavity-biexciton detuning yields the significant Purcell effect and the high probability of single photon emissions. The proposed model offers the fundamental approach in developing efficient single-photon emitting devices.

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