scholarly journals Ultrabright single-photon sources

Photoniques ◽  
2017 ◽  
pp. 23-26
Author(s):  
Pascale Senellart ◽  
Valérian Giesz ◽  
Loic Lanco
Keyword(s):  
Communication Network ◽  
Quantum Dots ◽  
Solid State ◽  
Quantum Communication ◽  
Single Photon ◽  
Single Photons ◽  
Cryogenic Temperatures ◽  
Optical Microcavity ◽  
Photon Sources ◽  
Lithography Technique

The development of a quantum communication network will require sources that efficiently emit single photons. Now, using a new lithography technique that garnered a silver CNRS medal in 2014, it has recently proved possible to fabricate these sources using quantum dots (QDs), that is, artificial solid-state atoms. Performed at cryogenic temperatures, this technique makes it possible to position a single QD in the middle of an optical microcavity with nanometric precision.

scholarly journals Solid-state quantum optics with quantum dots in photonic nanostructures

Nanophotonics ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 39-55 ◽  
Author(s):  
Peter Lodahl ◽  
Søren Stobbe
Keyword(s):  
Quantum Dots ◽  
Solid State ◽  
Quantum Optics ◽  
Quantum Electrodynamics ◽  
Single Photon ◽  
Photonic Band Gap ◽  
Photon Emission ◽  
Cavity Quantum Electrodynamics ◽  
Single Photons ◽  
Point Dipole

AbstractQuantum nanophotonics has become a new research frontier where quantum optics is combined with nanophotonics in order to enhance and control the interaction between strongly confined light and quantum emitters. Such progress provides a promising pathway towards quantum-information processing on an all-solid-state platform. Here we review recent progress on experiments with quantum dots in nanophotonic structures with special emphasis on the dynamics of single-photon emission. Embedding the quantum dots in photonic band-gap structures offers a way of controlling spontaneous emission of single photons to a degree that is determined by the local light-matter coupling strength. Introducing defects in photonic crystals implies new functionalities. For instance, efficient and strongly confined cavities can be constructed enabling cavity-quantum-electrodynamics experiments. Furthermore, the speed of light can be tailored in a photonic-crystal waveguide forming the basis for highly efficient single-photon sources where the photons are channeled into the slowly propagating mode of the waveguide. Finally, we will discuss some of the surprises that arise in solid-state implementations of quantum-optics experiments in comparison to their atomic counterparts. In particular, it will be shown that the celebrated point-dipole description of light-matter interaction can break down when quantum dots are coupled to plasmon nanostructures.

scholarly journals Semiconductor single-photon sources: progresses and applications

Photoniques ◽  
2021 ◽  
pp. 40-43
Author(s):  
Pascale Senellart
Keyword(s):  
Quantum Dots ◽  
Quantum Computing ◽  
Single Photon ◽  
New Technology ◽  
Semiconductor Quantum Dots ◽  
Single Photons ◽  
Time Increase ◽  
Quantum Networks ◽  
Optical Microcavities ◽  
Photon Sources

Single photons are the cornerstones of many applications in quantum technologies, from quantum computing to quantum networks. A new technology for the generation of single-photons has recently emerged, allowing a ten-time increase in efficiency with near-unity quantum purity. These single-photon sources are based on semiconductor quantum dots in optical microcavities.

Recent advances on single photon sources based on single colloidal nanocrystals

2010 ◽  
Vol 18 (1) ◽  
pp. 1-9 ◽  
Author(s):  
M. Vittorio ◽  
F. Pisanello ◽  
L. Martiradonna ◽  
A. Qualtieri ◽  
T. Stomeo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Single Photon ◽  
Life Time ◽  
Colloidal Quantum Dots ◽  
Optical Systems ◽  
Colloidal Nanocrystals ◽  
Single Photons ◽  
Light Emitting Devices ◽  
Photon Sources

AbstractSingle colloidal quantum dots (QDs) are increasingly exploited as triggered sources of single photons. This review reports on recent results on single photon sources (SPS) based on colloidal quantum dots, whose size, shape and optical properties can be finely tuned by wet chemistry approach. First, we address the optical properties of different colloidal nanocrystals, such as dots, rods and dot in rods and their use as single photon sources will be discussed. Then, we describe different techniques for isolation and positioning single QDs, a major issue for fabrication of single photon sources, and various approaches for the embedding single nanocrystals inside microcavities. The insertion of single colloidal QDs in quantum confined optical systems allows one to improve their overall optical properties and performances in terms of efficiency, directionality, life time, and polarization control. Finally, electrical pumping of colloidal nanocrystals light emitting devices and of NC-based single photon sources is reviewed.

scholarly journals Colloidal CdSe/ZnS quantum dots as single-photon sources

2004 ◽  
Vol 6 ◽  
pp. 99-99 ◽  
Author(s):  
X Brokmann ◽  
G Messin ◽  
P Desbiolles ◽  
E Giacobino ◽  
M Dahan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Single Photon ◽  
Photon Sources

Modeling quantum dots in micro-pillar micro-cavities for single-photon sources

2004 ◽  
Author(s):  
Ying-Lung D. Ho ◽  
Martin J. Cryan ◽  
Ian J. Craddock ◽  
Chris J. Railton ◽  
John G. Rarity
Keyword(s):  
Quantum Dots ◽  
Single Photon ◽  
Photon Sources

Efficient Single-Photon Sources Based on Low-Density Quantum Dots in Photonic-Crystal Nanocavities

2006 ◽  
Vol 96 (11) ◽  
Author(s):  
Wen-Hao Chang ◽  
Wen-Yen Chen ◽  
Hsiang-Szu Chang ◽  
Tung-Po Hsieh ◽  
Jen-Inn Chyi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photonic Crystal ◽  
Single Photon ◽  
Low Density ◽  
Photon Sources

Stressor-Induced Site Control of Quantum Dots for Single-Photon Sources

2020 ◽  
pp. 53-90
Author(s):  
U. W. Pohl ◽  
A. Strittmatter ◽  
A. Schliwa ◽  
M. Lehmann ◽  
T. Niermann ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Single Photon ◽  
Photon Sources ◽  
Site Control
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