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A model for direct two band excitons in a disordered quantum well coupled to light in a cavity is investigated. In the limit in which the exciton density is high, we assess the impact of weak `pair-breaking' disorder on the feasibility of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. M. Marchetti , B. D. Simons , P. B. Littlewood

Photons and excitons in a semiconductor microcavity interact to form exciton-polariton condensates. These are governed by a nonlinear quantum-mechanical system involving exciton and photon wavefunctions. We calculate all non-traveling…

Pattern Formation and Solitons · Physics 2015-07-15 Stavros Komineas , Stephen P. Shipman , Stephanos Venakides

The optical responses of semiconducting transition metal dichalcogenides are dominated by excitons. Being able to strongly interact with light and other materials excitations, excitons in semiconductors are prototypes for investigating…

Mesoscale and Nanoscale Physics · Physics 2021-01-28 Xuke Jiang , Masoud Taleb , Florian Diekmann , Kai Rossnagel , Nahid Talebi

The non-resonant interaction between the high-density excitons in a quantum well and a single mode cavity field is investigated. An analytical expression for the physical spectrum of the excitons is obtained. The spectral properties of the…

Quantum Physics · Physics 2009-11-07 Yu-xi Liu , N. Imoto , S. K. Ozdemir , Guang-ri Jin , C. P. Sun

We theoretically investigate polarization-entangled photon generation by using a semiconductor quantum dot embedded in a microcavity. The entangled states can be produced by the application of two cross-circularly polarized laser fields.…

We consider exciton polaritons in a semiconductor microcavity with a saturable absorber in the growth direction of the heterostructure. This feature promotes additional nonlinear losses of the system with the emergence of bistability of the…

Mesoscale and Nanoscale Physics · Physics 2015-08-12 D. V. Karpov , I. G. Savenko , H. Flayac , N. N. Rosanov

We demonstrate the existence of the excited state of an exciton-polariton in a semiconductor microcavity. The strong coupling of the quantum well heavy-hole exciton in an excited 2s state to the cavity photon is observed in non-zero…

Strong coupling between light and matter in an optical cavity provides a pathway to giant polariton nonlinearity, where effective polariton-polariton interactions are mediated by materials' nonlinear responses. The pursuit of such enhanced…

Optics · Physics 2024-11-26 Zhi Wang , Li He , Bumho Kim , Bo Zhen

We investigate the interaction of excitons in a two dimensional lattice and photons in a planar cavity in the presence of disorder. The strong exciton-photon coupling is described in terms of polariton quasi-particles, which are scattered…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Michal Grochol , Carlo Piermarocchi

Semiconductor microcavity systems strongly coupled to quantum wells are now receiving a great deal of attention because of their ability to efficiently generate coherent light by the Bose-Einstein condensation (BEC) of an exciton-polariton…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 Makoto Yamaguchi , Tetsuo Ogawa

The correlation function of radiation from a high-quality semiconductor microcavity at the resonant laser excitation demonstrates oscillations with surprisingly long-period and damping times of a nanosecond range. It was shown that the…

Other Condensed Matter · Physics 2016-12-06 Andrey Demenev , Sergei Novikov , Daniil Domaretskiy , Andrey Parakhonskii , Mikhail Lebedev

We investigate, theoretically and numerically, the spin dynamics of a two-component exciton-polariton condensate created and sustained by non-resonant spin-polarized optical pumping of a semiconductor microcavity. Using the open-dissipative…

Quantum Gases · Physics 2015-08-26 G. Li , T. C. H. Liew , O. A. Egorov , E. A. Ostrovskaya

Semiconductor quantum dots in photonic cavities are strongly coupled light-matter systems with prospective applications in optoelectronic devices and quantum information processing. Here we present a theoretical study of the coupled…

Mesoscale and Nanoscale Physics · Physics 2020-06-16 K. Jürgens , F. Lengers , T. Kuhn , D. E. Reiter

We study the generation of entangled light in planar semiconductor microcavities. The focus is on a particular pump configuration where the dissipative internal polariton dynamics leads to the emission of entangled light in a W-state. Our…

Quantum Physics · Physics 2015-08-26 Daniel Pagel , Holger Fehske

Atomically thin semiconductors can be readily integrated into a wide range of nanophotonic architectures for applications in quantum photonics and novel optoelectronic devices. We report the observation of nonlocal interactions of…

The observation of spin-related phenomena of microcavity polaritons has been limited due to weak Zeeman effect of non-magnetic semiconductors. We demonstrate that the incorporation of magnetic ions into quantum wells placed in a…

Mesoscale and Nanoscale Physics · Physics 2017-03-01 R. Mirek , M. Król , K. Lekenta , J. -G. Rousset , M. Nawrocki , M. Kulczykowski , M. Matuszewski , J. Szczytko , W. Pacuski , B. Piętka

We investigate theoretically the polariton coupling between the light confined in a planar cavity and the intersubband transitions of a two-dimensional electron gas confined in semiconductor quantum wells in the presence of a vertical…

Mesoscale and Nanoscale Physics · Physics 2011-07-08 Giovanni Pizzi , Francesca Carosella , Gérald Bastard , Robson Ferreira

We consider exciton-photon coupling in semiconductor microcavities in which separate periodic potentials have been embedded for excitons and photons. We show theoretically that this system supports degenerate ground-states appearing at…

Mesoscale and Nanoscale Physics · Physics 2017-06-12 M. Sun , I. G. Savenko , H. Flayac , T. C. H. Liew

We analyse the interaction of exciton and exciton-polariton condensates in semiconductor microcavity with a coherent acoustic wave. An analytical solution for the dispersion of excitations of coupled condensate-phonon system is found in the…

Materials Science · Physics 2015-05-27 D. V. Vishnevsky , N. A. Gippius , I. A. Shelykh , D. D. Solnyshkov , G. Malpuech

We have developed a mean-field model to describe the dynamics of a non-equilibrium Bose-Einstein condensate of exciton-polaritons in a semiconductor microcavity. The spectrum of elementary excitations around the stationary state is…

Other Condensed Matter · Physics 2009-11-13 M. Wouters , I. Carusotto
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