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We demonstrate the remote all-optical control of the spontaneous emission (SE) of quantum dots using coupled photonic crystal cavities. By spectrally tuning a Fabry-Perot cavity in resonance with a target cavity, the quality factor and the…

Mesoscale and Nanoscale Physics · Physics 2012-11-20 C. Y. Jin , M. Y. Swinkels , R. Johne , T. B. Hoang , L. Midolo , P. J. van Veldhoven , A. Fiore

Circuit QED techniques have been instrumental to manipulate and probe with exquisite sensitivity the quantum state of superconducting quantum bits coupled to microwave cavities. Recently, it has become possible to fabricate new devices…

The distance-dependent interaction of an emitter with a plasmonic nanoparticle or surface forms the basis of the field of plexitonics. Semiconductor quantum dots (QDs) are robust emitters due to their photostability, and offer the…

Mesoscale and Nanoscale Physics · Physics 2021-09-20 Anum Nisar , Harini Hapuarachchi , Laurent Lermusiaux , Jared H. Cole , Alison M. Funston

We propose a scheme for generating a high-purity single photon on the basis of cavity quantum electrodynamics (QED). This scheme employs a four-level system including two excited states, two ground states, and two driving lasers; this…

Quantum Physics · Physics 2025-03-12 Seigo Kikura , Rui Asaoka , Masato Koashi , Yuuki Tokunaga

The ability to control nonclassical light emission from a single quantum emitter by an integrated cavity may unleash new perspectives for integrated photonic quantum applications. However, coupling a single quantum emitter to cavity within…

We present evidence of cavity quantum electrodynamics from a sparse density of strongly quantum-confined Pb-chalcogenide nanocrystals (between 1 and 10) approaching single-dot levels on moderately high-Q mesoscopic silicon optical cavities.…

Quantum Physics · Physics 2015-05-13 Ranojoy Bose , Jie Gao , James F. McMillan , Alex D. Williams , Chee Wei Wong

We study a photonic circuit consisting of a quantum dot, QD, coupled to a photon cavity over a wide range of temperature up to room temperature. A key component of such a system is presented here in the form of a Purcell-enhanced…

Quantum Physics · Physics 2022-05-31 Sarbast W. Abdulqadir , Hawri O. Majeed , Nzar Rauf Abdullah

We propose a scheme for the ultrafast control of the emitter-field coupling rate in cavity quantum electrodynamics. This is achieved by the control of the vacuum field seen by the emitter through a modulation of the optical modes in a…

Quantum Physics · Physics 2015-03-23 Robert Johne , Ron Schutjens , Sartoon Fattah poor , Chao-Yuan Jin , Andrea Fiore

Using topology optimization, we inverse-design nanophotonic cavities enabling the preparation of pure states of pairs and triples of quantum emitters. Our devices involve moderate values of the dielectric constant, operate under continuous…

We experimentally demonstrate a ring geometry all-fiber cavity system for cavity quantum electrodynamics with an ensemble of cold atoms. The fiber cavity contains a nanofiber section which mediates atom-light interactions through an…

Quantum Physics · Physics 2017-02-27 S. K. Ruddell , K. E. Webb , I. Herrera , A. S. Parkins , M. D. Hoogerland

We present a systematic workflow for the design of one-dimensional photonic crystal nanobeam cavities with non-zero cavity lengths. By simultaneously optimizing the lattice periodicity, air-hole geometry, and cavity length, our approach…

High quality factor dielectric cavities designed to a nanoscale accuracy are mostly used to increase the spontaneous emission rate of a single emitter. Here we show that the coupling, at room temperature, between thick shell CdSe/CdS…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 D. Canneson , I. Mallek-Zouari , S. Buil , X. Quélin , C. Javaux , B. Mahler , B. Dubertret , J. -P. Hermier

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

Enhancing light-matter interactions on a chip is of paramount importance to study nano- and quantum optics effects and to realise integrated devices, for instance, for classical and quantum photonics, sensing and energy harvesting…

Optical nanocavities for coherent interfaces usually have their electric field maximum at the center point, which normally benefits interactions with small local quantum emitters. Here, we propose a partial thickness modulation on 2D slab…

Optics · Physics 2019-06-25 Chenjiang Qian , Xin Xie , Jingnan Yang , Xiulai Xu

Nanoscale generation of individual photons in confined geometries is an exciting research field aiming at exploiting localized electromagnetic fields for light manipulation. One of the outstanding challenges of photonic systems combining…

Standard cavity cooling of atoms or dielectric particles is based on the action of dispersive optical forces in high-finesse cavities. We investigate here a complementary regime characterized by large cavity losses, resembling the standard…

Quantum Physics · Physics 2024-08-21 Julian Lyne , Nico S. Bassler , Seong eun Park , Guido Pupillo , Claudiu Genes

Efficient generation of entangled photon pairs at telecom wavelengths is a key ingredient for long-range quantum networks. While embedding semiconductor quantum dots into hybrid circular Bragg gratings has proven effective, it conflicts…

Quantum Physics · Physics 2024-04-09 Chenxi Ma , Jingzhong Yang , Pengji Li , Eddy P. Rugeramigabo , Michael Zopf , Fei Ding

Colloidal quantum dots (QDs) are an attractive medium for nonlinear optics and deterministic heterogeneous integration with photonic devices. Their intrinsic nonlinearities can be strengthened further by coupling QDs to low mode-volume…

Hybrid quantum information protocols are based on local qubits, such as trapped atoms, NV centers, and quantum dots, coupled to photons. The coupling is achieved through optical cavities. Here we demonstrate far-field optimized H1 photonic…