72 citations · 343 across the 13 of their papers we have counts for
13 papers
Terahertz emitters based on microcavity dipolaritons
A. Seedhouse, J. Wilkes, V. D. Kulakovskii +1
We propose the use of dipolaritons -- quantum well excitons with large dipole moment, coupled to a planar microcavity -- for generating terahertz (THz) radiation. This is achieved…
Spatially and time-resolved imaging of transport of indirect excitons in high magnetic fields
C. J. Dorow, M. W. Hasling, E. V. Calman +4
We present the direct measurements of magnetoexciton transport. Excitons give the opportunity to realize the high magnetic field regime for composite bosons with magnetic fields of…
Transport of Indirect Excitons in High Magnetic Fields
Y. Y. Kuznetsova, C. J. Dorow, E. V. Calman +4
We present spatially- and spectrally-resolved photoluminescence measurements of indirect excitons in high magnetic fields. Long indirect exciton lifetimes give the opportunity to m…
Dipolar polaritons in microcavity-embedded coupled quantum wells in electric and magnetic fields
J. Wilkes, E. A. Muljarov
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 micr…
Indirect excitons in a potential energy landscape created by a perforated electrode
C. J. Dorow, Y. Y. Kuznetsova, J. R. Leonard +5
We report on the principle and realization of an excitonic device: a ramp that directs the transport of indirect excitons down a potential energy gradient created by a perforated e…
Exciton effective mass enhancement in coupled quantum wells in electric and magnetic fields
J. Wilkes, E. A. Muljarov
We present a calculation of exciton states in semiconductor coupled quantum wells (CQWs) in the presence of electric and magnetic fields applied perpendicular to the QW plane. The…
Optically Controlled Excitonic Transistor
P. Andreakou, S. V. Poltavtsev, J. R. Leonard +7
Optical control of exciton fluxes is realized for indirect excitons in a crossed-ramp excitonic device. The device demonstrates experimental proof of principle for all-optical exci…
Pattern Formation in the Exciton Inner Ring
M. Remeika, A. T. Hammack, S. Poltavtsev +6
We report on the spatially separated pump-probe study of indirect excitons in the inner ring in the exciton emission pattern. A pump laser beam generates the inner ring and a weake…
Drift-diffusion model of the fragmentation of the external ring structure in the photoluminescence pattern of indirect excitons in coupled quantum wells
J. Wilkes, E. A. Muljarov, A. L. Ivanov
Under optical excitation, coupled quantum wells are known to reveal fascinating features in the photoluminescence pattern originating from dipole orientated indirect excitons. The…
Transport of Indirect Excitons in a Potential Energy Gradient
J. R. Leonard, M. Remeika, M. K. Chu +6
We realized a potential energy gradient - a ramp - for indirect excitons using a shaped electrode at constant voltage. We studied transport of indirect excitons along the ramp and…
Excitation Energy Dependence of the Exciton Inner Ring
Y. Y. Kuznetsova, J. R. Leonard, L. V. Butov +4
We report on the excitation energy dependence of the inner ring in the exciton emission pattern. The contrast of the inner ring is found to decrease with lowering excitation energy…
Electrostatic Conveyer for Excitons
A. G. Winbow, J. R. Leonard, M. Remeika +9
We report on the study of indirect excitons in moving lattices - conveyers created by a set of AC voltages applied to the electrodes on the sample surface. The wavelength of this m…
Kinetics of the inner ring in the exciton emission pattern in GaAs coupled quantum wells
A. T. Hammack, L. V. Butov, J. Wilkes +4
We report on the kinetics of the inner ring in the exciton emission pattern. The formation time of the inner ring following the onset of the laser excitation is found to be about 3…