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We study a system comprising of a double quantum well embedded in a micropillar optical cavity, where strong coupling between a direct exciton, indirect exciton, and cavity photon is achieved. We show that the resulting hybrid…

Mesoscale and Nanoscale Physics · Physics 2014-09-11 O. Kyriienko , I. A. Shelykh , T. C. H. Liew

We have investigated theoretically the tuning characteristics of a Josephson junction within a microcavity for one-photon spontaneous emission and for one-photon and two-photon stimulated emission. For spontaneous emission, we have…

Superconductivity · Physics 2015-06-24 Andrea T. Joseph , Robin Whiting , Roger Andrews

Surface acoustic waves (SAWs) are a powerful tool for controlling a wide range of quantum systems, particularly quantum dots (QDs) via their oscillating strain fields. The resulting energy modulation of these single photon sources can be…

Mesoscale and Nanoscale Physics · Physics 2024-07-18 Thomas Descamps , Tanguy Schetelat , Jun Gao , Philip J. Poole , Dan Dalacu , Ali W. Elshaari , Val Zwiller

The ability to shape photon emission facilitates strong photon-mediated interactions between disparate physical systems, thereby enabling applications in quantum information processing, simulation and communication. Spectral control in…

The prospect of using the quantum nature of light for secure communication keeps spurring the search and investigation of suitable sources of entangled-photons. Semiconductor quantum dots are arguably the most attractive. They can generate…

Scalable quantum photonic systems require efficient single photon sources coupled to integrated photonic devices. Solid-state quantum emitters can generate single photons with high efficiency, while silicon photonic circuits can manipulate…

Micro/nanoscale single photon source is a building block of on-chip quantum information devices. Owing to possessing ultrasmall optical mode volume, plasmon structures can provide large Purcell enhancement, however scattering and absorption…

Optics · Physics 2021-01-20 Zhiyuan Qian , Zhichao Li , He Hao , Lingxiao Shan , Qihuang Gong , Ying Gu

Integrated quantum photonics relies critically on the purity, scalability, integrability, and flexibility of a photon source to support diverse quantum functionalities on a single chip. Up to date, it remains an open challenge to realize an…

Optics · Physics 2012-10-17 Wei C. Jiang , Xiyuan Lu , Jidong Zhang , Oskar Painter , Qiang Lin

Integrated quantum photonics holds significant promise for scalable photonic quantum information processing, quantum repeaters, and quantum networks, but its development is hindered by the mismatch between materials hosting high-quality…

We investigate single photon generation from individual self-assembled InGaAs quantum dots coupled to the guided optical mode of a GaAs photonic crystal waveguide. By performing confocal microscopy measurements on single dots positioned…

Mesoscale and Nanoscale Physics · Physics 2012-05-08 A. Laucht , S. Pütz , T. Günthner , N. Hauke , R. Saive , S. Frédérick , M. Bichler , M. -C. Amann , A. W. Holleitner , M. Kaniber , J. J. Finley

Combining resonant excitation with Purcell-enhanced single quantum dots (QDs) stands out as a prominent strategy for realizing high performance solid-state single photon sources. However, optimizing photon efficiency requires addressing…

Quantum Physics · Physics 2024-03-19 Zhixuan Rao , Jiawei Yang , Changkun Song , Mujie Rao , Ziyang Zheng , Luyu Liu , Xuebin Peng , Ying Yu , Siyuan Yu

We have demonstrated efficient production of triggered single photons by coupling a single semiconductor quantum dot to a three-dimensionally confined optical mode in a micropost microcavity. The efficiency of emitting single photons into a…

Integrated photonics is a powerful contender in the race for a fault-tolerant quantum computer, claiming to be a platform capable of scaling to the necessary number of qubits. This necessitates the use of high-quality quantum states, which…

Quantum Physics · Physics 2023-03-31 Ben M. Burridge , Imad I. Faruque , John G. Rarity , Jorge Barreto

We introduce a scalable photonic platform that enables efficient generation of entangled photon pairs from a semiconductor quantum dot. Our system, which is based on a self-aligned quantum dot-micro-cavity structure, erases the need for…

We demonstrate multiphoton interference using a resource-efficient frequency multiplexing scheme, suitable for quantum information applications that demand multiple indistinguishable and pure single photons. In our source,…

Hybrid integrated quantum photonics combines solid-state artificial atoms with reconfigurable photonic circuits, enabling scalable chip-based quantum networks. Self-assembled quantum dots (QDs) are ideal for this goal due to their ability…

We report on the realization of scalable single-photon sources (SPSs) based on single site-controlled quantum dots (SCQDs) and deterministically fabricated microlenses. The fabrication process comprises the buried-stressor growth technique…

Mesoscale and Nanoscale Physics · Physics 2018-01-17 Arsenty Kaganskiy , Sarah Fischbach , Andre Strittmatter , Tobias Heindel , Sven Rodt , Stephan Reitzenstein

The combination of semiconductor quantum dots (QDs) with photonic cavities is a promising way to realize non-classical light sources with state-of-the-art performances in terms of brightness, indistinguishability and repetition rate. In the…

Low noise single-photon sources are a critical element for quantum technologies. We present a heralded single-photon source with an extremely low level of residual background photons, by implementing low-jitter detectors and electronics and…

Semiconductor quantum-dot cavity systems are promising sources for solid-state based on-demand generation of single photons for quantum communication. Commonly, the spectral characteristics of the emitted single photon are fixed by system…

Mesoscale and Nanoscale Physics · Physics 2016-11-02 Dominik Breddermann , Dirk Heinze , Rolf Binder , Artur Zrenner , Stefan Schumacher
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