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Optically generated exciton-polaritons in cylindric semiconductor pillar microcavity with embedded GaAs/AlGaAs quantum wells demonstrate a clear polariton lasing regime. When exciting in the center of the pillar we detect a ring-shaped…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 V. K. Kalevich , M. M. Afanasiev , V. A. Lukoshkin , K. V. Kavokin , S. I. Tsintzos , P. G. Savvidis , A. V. Kavokin

We present calculations of the intensity of polariton-mediated inelastic light scattering in semiconductor microcavities within a Green's function framework. In addition to reproducing the strong coupling of light and matter, this method…

Strongly Correlated Electrons · Physics 2015-05-14 L. M. Leon Hilario , A. A. Aligia , A. M. Lobos , A. Bruchhausen

We report circular-to-linear and linear-to-circular conversion of optical polarization by semiconductor quantum dots. The polarization conversion occurs under continuous wave excitation in absence of any magnetic field. The effect…

Propagating, directionally dependent, polarized spin-currents are created in an anisotropic planar semiconductor microcavity, via Rayleigh scattering of optically injected polaritons in the optical spin Hall regime. The influence of…

Mesoscale and Nanoscale Physics · Physics 2009-11-03 A. Amo , T. C. H. Liew , C. Adrados , E. Giacobino , A. V. Kavokin , A. Bramati

The degree of circular polarization ($\wp$) of the non-linear emission in semiconductor microcavities is controlled by changing the exciton-cavity detuning. The polariton relaxation towards \textbf{K} $\sim 0$ cavity-like states is governed…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 M. D. Martin , G. Aichmayr , L. Vina , R. Andre

In this work, we explore the potential of spin-based integrated devices using polariton waveguides that form codirectional couplers. For suitable coupler parameters, a transfer of condensates between the arms of the coupler, occurs leading…

Mesoscale and Nanoscale Physics · Physics 2024-08-05 Elena Rozas , Alexey Yulin , Sebastian Klembt , Sven Höfling , María Dolores Martín , Luis Viña

Exciton-polaritons are mixed light-matter particles offering a versatile solid state platform to study many-body physical effects. In this work we demonstrate an electrically controlled polariton laser, in a compact, easy-to-fabricate and…

The ability to establish coherent communication channels is key for scaling up quantum devices. Here, we engineer interactions between distant polaritons, hybrid spin-photon excitations formed at different lumped-element superconducting…

We propose to use the lateral interface between two regions with different strengths of the spin-orbit interaction(s) to spin-polarize the electrons in gated two dimensional semiconductor heterostructures. For a beam with a non zero angle…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. Khodas , A. Shekhter , A. M. Finkel'stein

Semiconductor exciton-polaritons in planar microcavities form coherent two-dimensional condensates in non-equilibrium. However, coupling of multiple lower-dimensional polariton quantum systems, critically needed for polaritonic quantum…

We study theoretically optomechanical interactions in a semiconductor microcavity with embedded quantum well under the optical pumping by a Bessel beam, carrying a non-zero orbital momentum. Due to the transfer of orbital momentum from…

Mesoscale and Nanoscale Physics · Physics 2021-08-18 Alexander V. Poshakinskiy , Alexander N. Poddubny

We predict magnon polariton states circulating unidirectionally in a microwave cavity when loaded by a number of magnets on special lines. Realistic finite-element numerical simulations, including dielectric, time-dependent and non-linear…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 Weichao Yu , Tao Yu , Gerrit E. W. Bauer

A ring structure fabricated from GaAs is used to achieve interference of the net spin polarization of conduction band electrons. Optically polarized spins are split into two packets by passing through two arms of the ring in the diffusive…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Y. K. Kato , R. C. Myers , A. C. Gossard , D. D. Awschalom

Optical communication achieves high fanout and short delay advantageous for information integration in neural systems. Superconducting detectors enable signaling with single photons for maximal energy efficiency. We present designs of…

Neural and Evolutionary Computing · Computer Science 2018-11-14 Jeffrey M. Shainline , Sonia M. Buckley , Adam N. McCaughan , Jeff Chiles , Richard P. Mirin , Sae Woo Nam

We consider the excitation of polariton wakefields due to a propagating source in a semiconductor micro cavity. We show that two kinds of wakes are possible, depending on the constituents fraction (either exciton or photon) of the polariton…

Mesoscale and Nanoscale Physics · Physics 2014-02-07 H. Terças. J. T. Mendonça

Molecular polaritons are the optical excitations which emerge when molecular transitions interact strongly with confined electromagnetic fields. Increasing interest in the hybrid molecular-photonic materials that host these excitations…

Mesoscale and Nanoscale Physics · Physics 2018-02-26 Raphael F. Ribeiro , Luis A. Martínez-Martínez , Matthew Du , Jorge Campos-Gonzalez-Angulo , Joel Yuen-Zhou

Neurons are modeled electrically based on ferroelectric membranes thin enough to permit charge transfer, conjectured to be the tunneling result of thermally energetic ions and random electrons. These membranes can be triggered to produce…

Neural and Evolutionary Computing · Computer Science 2008-04-30 John Robert Burger

We propose a continuous variable analog of quantum controlled-NOT gates based on a system of exciton-polaritons in semiconductor microcavities. This can be realized by the engineering of parametric interaction between control and target…

Mesoscale and Nanoscale Physics · Physics 2016-01-13 O. Kyriienko , T. C. H. Liew

We present a microscopic theory of optical initialization, control and detection for a single electron spin in a quantum dot embedded into a zero-dimensional microcavity. The strong coupling regime of the trion and the cavity mode is…

Mesoscale and Nanoscale Physics · Physics 2015-09-23 D. S. Smirnov , M. M. Glazov , E. L. Ivchenko , L. Lanco

We demonstrate the spatial confinement of electronic excitations in a solid state system, within novel artificial structures that can be designed having arbitrary dimensionality and shape. The excitations under study are exciton-polaritons…