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We analyse the effect of a strong perpendicular magnetic field on an intersubband transition in a disordered doped quantum well strongly coupled to an optical cavity. The magnetic field changes the lineshape of the intersubband optical…

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 present a precise calculation of spatially-indirect exciton states in semiconductor coupled quantum wells and polaritons formed from their coupling to the optical mode of a microcavity. We include the presence of electric and magnetic…

Mesoscale and Nanoscale Physics · Physics 2016-09-28 J. Wilkes , E. A. Muljarov

Dipolaritons are quasiparticles that arise in coupled quantum wells embedded in a microcavity, they are a superposition of a photon, a direct exciton and an indirect exciton. We propose the existence of dipolaritons in a system of two…

Mesoscale and Nanoscale Physics · Physics 2016-11-23 J. S. Rojas-Arias , B. A. Rodríguez , H. Vinck-Posada

It has been shown, that a magnetopolaron discrete energy spectrum is realized in the optical experiments where exciting light is directed perpendicularly to a quantum well (QW) plane. The phonon dispersion as well as Coulomb attraction can…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 L. I. Korovin , I. G. Lang , S. T. Pavlov

We study the effect of the magnetic field orientation on the electroabsorption spectra of excitons confined in extremely shallow quantum wells. When the applied electric field is parallel to the quantum well plane, we demonstrate that, for…

Condensed Matter · Physics 2007-05-23 A. Getter , I. E. Perakis

We employ a magnetocapacitance technique to study the spectrum of the soft two-subband (or double-layer) electron system in a parabolic quantum well with a narrow tunnel barrier in the centre. In this system unbalanced by gate depletion, at…

We theoretically investigate the nonlinear effects of a magnetic field on the relaxation process of exciton-polaritons toward Bose-Einstein condensation in GaAs quantum wells. Our study reveals that the modification of the exciton's…

We demonstrate an efficient switching between strong and weak exciton-photon coupling regimes in microcavity-embedded asymmetric double quantum wells, controlled by an applied electric field. We show that a fine tuning of the electric field…

Mesoscale and Nanoscale Physics · Physics 2015-11-02 K. Sivalertporn , E. A. Muljarov

In-plane magnetic field is found to change drastically the photoluminescence spectra and kinetics of interwell excitons in GaAs/AlGaAs coupled quantum wells. The effect is due to the in-plane magnetic field induced displacement of the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 L. V. Butov , A. V. Mintsev , Yu. E. Lozovik , K. L. Campman , A. C. Gossard

The in-plane magnetic field suppresses the quantum coupling between electrons in a double quantum well structure. The microscopical theory of this effect is developed and confirmed experimentally. We have shown that the decrease of the…

Condensed Matter · Physics 2007-05-23 Y. Berk , A. Kamenev , A. Palevski , L. N. Pfeiffer , K. W. West

We evidence magnetic field triggered polariton lasing in a microcavity containing semimagnetic quantum wells. This effect is associated with a decrease of the polariton lasing threshold power in magnetic field. The observed magnetic field…

Mesoscale and Nanoscale Physics · Physics 2017-09-13 J. -G. Rousset , B. Piętka , M. Król , R. Mirek , K. Lekenta , J. Szczytko , W. Pacuski , M. Nawrocki

Replacing independent single quantum wells inside a strongly-coupled semiconductor microcavity with double quantum wells produces a special type of polariton. Using asymmetric double quantum wells in devices processed into mesas allows the…

We consider theoretically magnetic dipole mechanism of the IR-light absorption at intersubband transitions in wide-gap quantum wells (QW). In contrast to the electric dipole resonance, discussed mechanism manifests in the interaction with…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 I. V. Oladyshkin , M. A. Erukhimova , M. D. Tokman

The method of detection and investigation of the magnetopolaron effect in the semiconductor quantum wells (QW) in a strong magnetic field, based on pulse light irradiation and measuring the reflected and transmitted pulses, has been…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 D. A. Contreras-Solorio , S. T. Pavlov , L. I. Korovin , I. G. Lang

By measuring the thermoelectric effect in high-mobility quantum wells with two occupied subbands in perpendicular magnetic field, we detect magnetophonon oscillations due to interaction of electrons with acoustic phonons. These oscillations…

Mesoscale and Nanoscale Physics · Physics 2016-10-19 A. D. Levin , G. M. Gusev , O. E. Raichev , A. K. Bakarov

We investigate the coupling of a multi-mode metal-insulator-metal cavity to a two-dimensional electron gas (2DEG) in a quantum well in the presence of a strong magnetic field. The TM cavity mode is strongly hybridized with an intersubband…

We report on the observation of the magneto-photogalvanic effect (MPGE) due to inter-subband transitions in (001)-oriented GaAs quantum wells. This effect is related to the gyrotropic properties of the structures. It is shown that…

Polarization conversion of light reflected from quantum wells governed by both magnetic field and light propagation direction is observed. We demonstrate that the polarization conversion is caused by the magneto-spatial dispersion in…

Mesoscale and Nanoscale Physics · Physics 2018-03-09 L. V. Kotova , V. N. Kats , A. V. Platonov , V. P. Kochereshko , R. André , L. E. Golub

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
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