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Atomically flat semiconducting materials such as monolayer WSe$_2$ hold great promise for novel optoelectronic devices. Recently, quantum light emission has been observed from bound excitons in exfoliated WSe$_2$. As part of developing…

Mesoscale and Nanoscale Physics · Physics 2018-07-10 L. C. Flatten , L. Weng , A. Branny , S. Johnson , P. R. Dolan , A. A. P. Trichet , B. D. Gerardot , J. M. Smith

We have developed a microcavity single-photon source based on a single quantum dot within a planar cavity in which wet-oxidation of a high-aluminium content layer provides lateral confinement of both the photonic mode and the injection…

Other Condensed Matter · Physics 2009-11-13 D. J. P. Ellis , A. J. Bennett , A. J. Shields , P. Atkinson , D. A. Ritchie

An on-demand single photon source is a key element in a series of prospective quantum technologies and applications. We demonstrate the operation of a tuneable on-demand microwave photon source based on a fully controllable superconducting…

Quantum Physics · Physics 2016-08-23 Z. H. Peng , J. S. Tsai , O. V. Astafiev

Single-Wall Carbon Nanotubes (SWNTs) are among the very few candidates for single-photon sources operating in the telecom bands since they exhibit large photon antibunching up to room temperature. However, coupling a nanotube to a photonic…

Single-photon sources are of great interest because they are key elements in different promising applications of quantum technologies. Here we demonstrate a highly efficient tunable on-demand microwave single-photon source based on a…

Quantum Physics · Physics 2020-03-11 Yu Zhou , Zhihui Peng , Yuta Horiuchi , O. V. Astafiev , J. S. Tsai

Solid-state single photon sources are central building blocks in quantum communication networks and on-chip quantum information processing. Atomically thin crystals were established as possible candidates to emit non-classical states of…

Scalable optical quantum technologies require interference between large numbers of indistinguishable single-photons emitted by independent sources. Semiconductor quantum dots are known to be excellent on-demand sources of single-photons.…

Spectrally-tunable quantum-light sources are key elements for the realization of long-distance quantum communication. A deterministically fabricated single-photon source with a photon-extraction efficiency of {\eta}=(20 +- 2) % and a tuning…

Mesoscale and Nanoscale Physics · Physics 2018-05-29 S. Fischbach , M. v. Helversen , M. Schmidt , A. Kaganskiy , R. Schmidt , A. Schliwa , T. Heindel , S. Rodt , S. Reitzenstein

Scalable quantum photonic architectures demand highly efficient, high-purity single-photon sources, which can be frequency matched via external tuning. We demonstrate a single-photon source based on an InAs quantum dot embedded in a…

Pure and bright single photon sources have recently been obtained by inserting solid-state emitters in photonic nanowires or microcavities. The cavity approach presents the attractive possibility to greatly increase the source operation…

We demonstrate tunable on-chip single photon sources using the Stark tuning of single quantum dot (QD) excitonic transitions in short photonic crystal waveguides (PhC WGs). The emission of single QDs can be tuned in real-time by 9 nm with…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Thang Ba Hoang , Johannes Beetz , Matthias Lermer , Leonardo Midolo , Martin Kamp , Sven Höfling , Andrea Fiore

Single photon sources are an integral part of various quantum technologies, and solid state quantum emitters at room temperature appear as a promising implementation. We couple the fluorescence of individual silicon vacancy centers in…

Single-photon sources are essential building blocks in quantum photonic networks, where quantum-mechanical properties of photons are utilised to achieve quantum technologies such as quantum cryptography and quantum computing. Most…

Recently, Grange et al. [Phys. Rev. Lett. 114, 193601 (2015)] showed the possibility of single photon generation with high indistinguishability from a quantum emitter, despite strong pure dephasing, by `funneling' emission into a photonic…

Quantum Physics · Physics 2019-05-17 Hyeongrak Choi , Di Zhu , Yoseob Yoon , Dirk Englund

We report a tunable single-photon source based on a single trapped ion. Employing spontaneous Raman scattering and in-vacuum optics with large numerical aperture, single photons are efficiently created with controlled temporal shape and…

Quantum Physics · Physics 2015-05-13 M. Almendros , J. Huwer , N. Piro , F. Rohde , C. Schuck , M. Hennrich , F. Dubin , J. Eschner

Emitter dephasing is one of the key issues in the performance of solid-state single photon sources. Among the various sources of dephasing, acoustic phonons play a central role in adding decoherence to the single photon emission. Here, we…

A single photon source is a key enabling technology in device-independent quantum communication, quantum simulation for instance boson sampling, linear optics-based and measurement-based quantum computing. These applications involve many…

Cavity-enhanced single quantum dots (QDs) are the main approach towards ultra-high-performance solid-state quantum light sources for scalable photonic quantum technologies. Nevertheless, harnessing the Purcell effect requires precise…

Single-walled carbon nanotubes are a promising material as quantum light sources at room temperature and as nanoscale light sources for integrated photonic circuits on silicon. Here we show that integration of dopant states in carbon…

Mesoscale and Nanoscale Physics · Physics 2018-08-24 A. Ishii , X. He , N. F. Hartmann , H. Machiya , H. Htoon , S. K. Doorn , Y. K. Kato

Cavity-enhanced Spontaneous parametric down-conversion (SPDC) is capable of efficient generation of single photons with suitable spectral properties for interfacing with the atoms. However, beside the remarkable progress of this technique,…

Quantum Physics · Physics 2019-10-29 Amir Moqanaki , Francesco Massa , Philip Walther
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