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A one-dimensional photonic-crystal (PC) cavity with nanoholes is proposed for extremely enhancing the THz electric fields by utilizing the electromagnetic (EM) boundary conditions, where both slot effect (for the perpendicular component of…

Optics · Physics 2018-12-05 Qijing Lu , Xiaogang Chen , Chang-Ling Zou , Shusen Xie

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

In recent years, quantum nanophotonics has forged a rich nexus of nanotechnology with photonic quantum information processing, offering remarkable prospects for advancing quantum technologies beyond their current technical limits in terms…

Optics · Physics 2024-09-04 Daniel D. A. Clarke , Ortwin Hess

In semiconductors, quantum confinement can greatly enhance the interaction between band carriers (electrons and holes) and dopant atoms. One manifestation of this enhancement is the increased stability of exciton magnetic polarons in…

Mesoscale and Nanoscale Physics · Physics 2017-04-27 W. D. Rice , W. Liu , V. Pinchetti , D. R. Yakovlev , V. I. Klimov , S. A. Crooker

Light-matter interactions can be dramatically modified by the surrounding environment. Here we report on the first experimental observation of molecular spontaneous emission inside a highly nonlocal metamaterial based on a plasmonic nanorod…

The influence of pure dephasing on the dynamics of the coupling between a two-level atom and a cavity mode is systematically addressed. We have derived an effective atom-cavity coupling rate that is shown to be a key parameter in the…

Quantum Physics · Physics 2015-05-18 A. Auffèves , D. Gerace , J. M. Gérard , M. Franca Santos , L. C. Andreani , J. P. Poizat

We study theoretically the enhancement of spontaneous emission in wire metamaterials. We analyze the dependence of the Purcell factor dependence on wire dielectric constant for both electric and magnetic dipole sources, and find an optimal…

Optics · Physics 2013-05-30 Alexander N. Poddubny , Pavel A. Belov , Yuri S. Kivshar

The spontaneous emission of atoms can be controlled by placing them between two mirrors that form an optical cavity. Rapid advances in material processing techniques in the last 10 years have made it possible to fabricate microscopic…

Optics · Physics 2022-05-16 Simai Jia

Quantum dots are promising candidates for telecom single photon sources due to their tunable emission across the different low-loss telecommunications bands, making them compatible with existing fiber networks. Their suitability for…

Single emitters in solid state are great sources of single and entangled photons. To boost their extraction efficiency and tailor their emission properties, they are often incorporated in photonic nanostructures. However, achieving accurate…

Colloidal quantum dots (cQDs) are now a mature nanomaterial with optical properties customizable through varying size and composition. However, their use in optical devices is limited as they are not widely available in convenient forms…

The defect states in atomically thin layers of transition metal dichalcogenides are promising candidates for single photon emission. However, the brightness of such quantum emission is often weak, and is accompanied with undesirable effects…

Applied Physics · Physics 2020-03-24 Raghav Chaudhary , Varun Raghunathan , Kausik Majumdar

Rare earth emitters enable critical quantum resources including spin qubits, single photon sources, and quantum memories. Yet, probing of single ions remains challenging due to low emission rate of their intra-4f optical transitions. One…

Quantum Physics · Physics 2023-04-19 Likai Yang , Sihao Wang , Mohan Shen , Jiacheng Xie , Hong X. Tang

We experimentally demonstrate the control of the spontaneous emission rate and the radiation pattern of colloidal quantum dots deterministically positioned in a plasmonic patch antenna. The antenna consists of a thin gold microdisk 30 nm…

Plasmonic gratings of different periodicities are fabricated on top of Silicon nanocrystals embedded in Silicon Dioxide. Purcell enhancements of up to 2 were observed, which matches the value from simulations. Plasmonic enhancements are…

Optics · Physics 2009-11-13 Yiyang Gong , Jesse Lu , Szu-Lin Cheng , Yoshio Nishi , Jelena Vuckovic

The interaction of single quantum emitters with an optical cavity enables the realization of efficient spin-photon interfaces, an essential resource for quantum networks. The dynamical control of the spontaneous emission rate of quantum…

The coupling of CdTe/ZnTe quantum dot (QD) emission to micropillar cavity eigenmodes in the weak coupling regime is demonstrated. We analyze photoluminescence spectra of QDs embedded in monolithic micropillar cavities based on Bragg mirrors…

Quantum emitters of single indistinguishable photons play a key role in quantum technologies. Among condensed matter systems, colloidal perovskite quantum dots have emerged as promising candidates, exhibiting high-purity single photon…

High-index dielectric nanostructures have recently become prominent forefront alternatives for manipulating light at the nanoscale. Their electric and magnetic resonances with intriguing characteristics endow them with a unique ability to…

Optics · Physics 2018-07-02 Yuanqing Yang , Vladimir A. Zenin , Sergey I. Bozhevolnyi

Two-dimensional electron-hole gases in colloidal semiconductors have a wide variety of applications. Therefore, a proper physical understanding of these materials is of great importance. In this paper we present a detailed theoretical…

Mesoscale and Nanoscale Physics · Physics 2019-12-18 F. García Flórez , Aditya Kulkarni , Laurens D. A. Siebbeles , H. T. C. Stoof