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We report a study of the quantum dot emission in short photonic crystal waveguides. We observe that the quantum dot photoluminescence intensity and decay rate are strongly enhanced when the emission energy is in resonance with Fabry-Perot…

This is the third of a series of papers devoted to develop a microscopical approach to the dipole emission process and its relation to coherent transport in random media. In this paper, we compute the power emitted by an induced dipole and…

Optics · Physics 2009-02-13 M. Donaire

Quantum networks and the modular scaling of quantum computers require efficient spin-photon interfaces. This can be achieved with optical resonators that increase the local density of states, thereby enhancing the radiative decay of…

Quantum Physics · Physics 2025-12-01 Florian Burger , Stephan Rinner , Andreas Gritsch , Kilian Sandholzer , Andreas Reiserer

We report on the alteration of photon emission properties of a single trapped ion coupled to a high finesse optical fiber cavity. We show that the vacuum field of the cavity can simultaneously affect the emissions in both the infrared (IR)…

Quantum Physics · Physics 2017-08-16 Hiroki Takahashi , Ezra Kassa , Costas Christoforou , Matthias Keller

The increased decay rate of a two-level system weakly coupled to an optical cavity, known as the Purcell effect, is a cornerstone of cavity QED. However, the effect of cavity coupling is not well understood if the two-level system is…

Quantum Physics · Physics 2023-06-19 Charlie Nation , Valentina Notararigo , Alexandra Olaya-Castro

In this article we explore the dynamics of many-body atomic systems symmetrically coupled to a single Lorentzian photonic cavity. Our study reveals interesting dynamical characteristics including non-zero steady states, superradiant decay,…

Quantum Physics · Physics 2022-11-17 Adam Burgess , Marian Florescu

The use of a thin mixed layer consisting of an inert diluent material and a light emitting material between the hole-transport layer and electron-transport layer of organic light-emitting diodes leads to an increase in the external quantum…

Soft Condensed Matter · Physics 2011-07-15 S. H. Mohan , K. Garre , N. Bhandari , M. Cahay

We analyze the change in the spontaneous decay rate, or Purcell effect, of an extended quantum emitter in a structured photonic environment. Based on a simple theory, we show that the cross-density of states is the central quantity driving…

Quantum Physics · Physics 2022-05-11 R. Carminati , M. Gurioli

The spontaneous emission of photons from optical cavities and from trapped atoms has been studied extensively in the framework of quantum optics. Theoretical predictions based on the rotating wave approximation (RWA) are in general in very…

Other Condensed Matter · Physics 2014-11-20 Andreas Kurcz , Antonio Capolupo , Almut Beige , Emilio Del Giudice , Giuseppe Vitiello

Strong interaction between light and a single quantum emitter is essential to a great number of applications, including single photon sources. Microcavities and plasmonic antennas have been used frequently to enhance these interactions…

Optics · Physics 2016-12-01 Hugo Michiel Doeleman , Ewold Verhagen , A. Femius Koenderink

We report on the theoretical investigation of photonic crystal cavities etched on a suspended membrane for the generation of polarization entangled photon pairs using the biexciton cascade in a single quantum dot. The implementation of…

Quantum Physics · Physics 2009-11-13 Matthieu Larqué , Timothy Karle , Isabelle Robert-Philip , Alexios Beveratos

We explore the electroluminescence efficiency for a quantum mechanical model of a large number of molecular emitters embedded in an optical microcavity. We characterize the circumstances under which a microcavity enhances harvesting of…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Luis A. Martínez-Martínez , Elad Eizner , Stéphane Kéna-Cohen , Joel Yuen-Zhou

We analyze a single photon source consisting of an InAs quantum dot coupled to a directional-emission photonic crystal (PC) cavity implemented in GaAs. On resonance, the dot's lifetime is reduced by more than 10 times, to 45ps. Compared to…

Quantum Physics · Physics 2015-05-13 Mitsuru Toishi , Dirk Englund , Andrei Faraon , Jelena Vuckovic

Singlet fission is an important candidate to increase energy conversion efficiency in organic photovoltaics by providing a pathway to increase the quantum yield of excitons per photon absorbed in select materials. We investigate the…

Ultracold ground-state molecules can be formed from ultracold atoms via photoassociation followed by a spontaneous emission process. Typically, the molecular products are distributed over a range of final states. Here, we propose to use an…

Quantum Physics · Physics 2018-12-20 Tobias Kampschulte , Johannes Hecker Denschlag

The radiation emitted by a classically pumped three-level $\Lambda$-type emitter in a resonator cavity featuring both radiative and unwanted losses is studied. In particular, the efficiency of one-photon Fock state excitation of the…

Quantum Physics · Physics 2018-12-04 M. Khanbekyan , D. -G. Welsch

We discuss the prospects for enhancing absorption and scattering of light from a weakly coupled atom in a high-finesse optical cavity by adding a medium with large, positive group index of refraction. The slow-light effect is known to…

Atomic Physics · Physics 2017-10-10 B. Megyeri , A. Lampis , G. Harvie , R. Culver , J. Goldwin

Metallic nanoparticles can localize the incident light to hotspots as plasmon oscillations, where the intensity can be increased up to four orders of magnitude. Even though the lifetime of plasmons are typically short, it can be increased…

Optics · Physics 2020-01-22 Bilge Can Yildiz , Alpan Bek , Mehmet Emre Tasgin

Strong light-induced interactions between atoms are known to cause nonlinearities at a few-photon level which are crucial for applications in quantum information processing. Compared to free space, the scattering and the light-induced…

Quantum Physics · Physics 2021-12-22 Artur Skljarow , Harald Kübler , Charles S. Adams , Tilman Pfau , Robert Löw , Hadiseh Alaeian

Single-photon sources based on neutral or charged excitons in a semiconductor quantum dot are attractive resources for photonic quantum computers and simulators. To obtain indistinguishable photons, the source is pumped on resonance with…

Mesoscale and Nanoscale Physics · Physics 2026-04-27 Luca Vannucci , Niels Gregersen