62 citations · 333 across the 17 of their papers we have counts for
17 papers
Digital-Alloy Bragg Mirrors in High-Q Microcavities for Polariton Lasing
V. A. Stolyarov, A. S. Kurdyubov, A. V. Trifonov +7
We present an approach to the molecular-beam epitaxy of high-Q planar GaAs-based microcavities in which the AlGaAs high-index layers of the distributed Bragg reflectors (DBRs) are…
Magnetic field study of exciton nonradiative broadening excitation spectra in GaAs/AlGaAs quantum wells
M. A. Chukeev, A. S. Kurdyubov, I. I. Ryzhov +4
Exciton excited states in the quantum well are studied via their effect on the nonradiative broadening of the ground exciton resonance. Dependence of the nonradiative broadening of…
Nonlinear behaviour of the nonradiative exciton reservoir in quantum wells
A. S. Kurdyubov, A. V. Trifonov, A. V. Mikhailov +4
Excitons and free charge carriers with large wave vectors form a nonradiative reservoir, which can strongly affect properties of bright excitons due to the exciton-exciton and exci…
Unveiling the electron-nuclear spin dynamics in an n-doped InGaAs epilayer by spin noise spectroscopy
C. Rittmann, M. Yu. Petrov, A. N. Kamenskii +6
We discuss the implications of a small indium content (3%) in a GaAs epilayer on the electron- and nuclear-spin relaxation due to enhanced quadrupolar effects induced by the strain…
Dynamics and control of nonradiative excitons - free carriers mixture in GaAs/AlGaAs quantum wells
A. S. Kurdyubov, A. V. Trifonov, B. F. Gribakin +9
Dynamics of nonradiative excitons with large in-plane wave vectors forming a so-called reservoir is experimentally studied in a high-quality semiconductor structure containing a 14…
Long-living dark coherence brought to light by magnetic-field controlled photon echo
I. A. Solovev, I. I. Yanibekov, Yu. P. Efimov +5
Larmor precession of the quasiparticle spin about a transverse magnetic field leads to the oscillations in the spontaneous photon echo signal due to the shuffling of the optical co…
Modelling and optimization of the excitonic diffraction grating
P. Yu. Shapochkin, Yu. V. Petrov, S. A. Eliseev +3
Periodical spatial modulation of the excitonic resonance in a quantum well could lead to the formation of a new highly directional and resonant coherent optical response -- resonan…
Nanosecond-scale magneto-exciton energy oscillations in quantum wells
A. V. Trifonov, E. S. Khramtsov, K. V. Kavokin +6
We report on the experimental evidence for a nanosecond time-scale spin memory based on nonradiative excitons. The effect manifests itself in magnetic-field-induced oscillations of…
Inversion of Zeeman splitting of exciton states in InGaAs quantum wells
P. S. Grigoryev, O. A. Yugov, S. A. Eliseev +5
Zeeman splitting of quantum-confined states of excitons in InGaAs quantum wells (QWs) is experimentally found to depend strongly on quantization energy. Moreover, it changes sign w…
Excitons in asymmetric quantum wells
P. S. Grigoryev, A. S. Kurdyubov, M. S. Kuznetsova +6
Resonance dielectric response of excitons is studied for the high-quality GaAs/InGaAs heterostructures with wide asymmetric quantum wells (QWs). To highlight effects of the QW asym…
Spin-noise-based magnetometry of an -doped GaAs microcavity in the field of elliptically polarized light
I. I. Ryzhov, G. G. Kozlov, D. S. Smirnov +8
Recently reported optical nuclear orientation in the -doped GaAs microcavity under pumping in nominal transparency region of the crystal [Appl. Phys. Lett. , 24240…
Excitons in square quantum wells: microscopic modeling and experiment
E. S. Khramtsov, P. A. Belov, P. S. Grigoryev +7
The binding energy and the corresponding wave function of excitons in GaAs-based finite square quantum wells (QWs) are calculated by the direct numerical solution of the three-dime…
Multiple quantum beats of quantum confined exciton states in InGaAs/GaAs quantum well
A. V. Trifonov, I. Ya. Gerlovin, I. V. Ignatiev +6
Multiple quantum beats of a system of the coherently excited quantum confined exciton states in a high-quality heterostructure with a wide InGaAs/GaAs quantum well are experimental…
Decrease of heavy-hole exciton mass induced by uniaxial stress in GaAs/AlGaAs quantum well
D. K. Loginov, P. S. Grigoryev, E. V. Ubiyvovk +5
It is experimentally shown that the pressure applied along the twofold symmetry axis of a heterostructure with a wide GaAs/AlGaAs quantum well leads to considerable modification of…
Effect of irradiation by He+ and Ga+ ions on 2D-exciton susceptibility of the InGaAs/GaAs quantum-well structures
Yu. V. Kapitonov, P. Yu. Shapochkin, Yu. V. Petrov +5
The effect of irradiation by 30-keV Ga+ and 35-keV He+ ions (in relatively small doses) on the excitonic reflectivity spectra of single InGaAs/GaAs quantum-well structures is studi…
Nontrivial relaxation dynamics of excitons in high-quality InGaAs/GaAs quantum wells
A. V. Trifonov, S. N. Korotan, A. S. Kurdyubov +8
Photoluminescence (PL) and reflectivity spectra of a high-quality InGaAs/GaAs quantum well structure reveal a series of ultra-narrow peaks attributed to the quantum confined excito…
Extremely low inhomogeneous broadening of exciton lines in shallow (In,Ga)As/GaAs quantum wells
S. V. Poltavtsev, Yu. P. Efimov, Yu. K. Dolgikh +3
We study radiative linewidth of exciton resonance in shallow InGaAs/GaAs single quantum wells as a function of indium concentration in the range and wel…