71 citations · 347 across the 28 of their papers we have counts for
28 papers
Spin noise reveals spin dynamics and recharging of lead halide perovskite nanocrystals
V. O. Kozlov, I. A. Smirnov, M. S. Kuznetsova +5
The lead halide perovskite nanocrystals embedded into a glass matrix exhibit strong interaction with light and demonstrate exceptional optical and spin related features along with…
Spin noise of a halide perovskite
V. O. Kozlov, N. I. Selivanov, C. C. Stoumpos +5
We report on first observation of spin noise in a strongly birefringent semiconductor -- halide perovskite single crystal MAPbI. The observed spin noise resonance is ascribed t…
The Faraday effect and phase transition in the CH 3 NH 3 PbI 3 halide perovskite single crystal
Anastasia A. Shumitskaya, Vadim O. Kozlov, Nikita. I. Selivanov +4
The spin degree of freedom of charge carriers in halide-perovskite semiconductors can be highly useful for information photonics applications. The Faraday effect is known to be the…
Optically stimulated electron paramagnetic resonance: simplicity, versatility, information content
V. O. Kozlov, A. A. Fomin, I. I. Ryzhov +1
A simple technique for observing optically stimulated electron paramagnetic resonance (OSEPR) is proposed and investigated. The versatility and information content of the described…
Spontaneous noise of birefringence in rare-earth doped glasses
V. O. Kozlov, I. I. Ryzhov, G. G. Kozlov +2
We report on first direct observation of spontaneous fluctuations of birefringence in glasses doped with rare-earth (RE) ions. The fluctuations were observed in Nd- and Yb$^…
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…
Spin noise in birefringent and inhomogeneous media
V. O. Kozlov, N. S. Kuznetsov, D. S. Smirnov +3
It is known that linear birefringence of the medium essentially hinders measuring the Faraday effect. For this reason, optically anisotropic materials have never been considered as…
Invariants in the paramagnetic resonance spectra of impurity crystals
A. N. Kamenskii, V. O. Kozlov, N. S. Kuznetsov +5
We show that in cubic crystals with anisotropic impurity centers the sum of squares of the magnetic resonance (EPR) frequencies is invariant with respect to the magnetic field dire…
Raman scattering model of the spin noise
G. G. Kozlov, A. A. Fomin, M. Yu. Petrov +2
The mechanism of formation of the polarimetric signal observed in the spin noise spectroscopy (SNS) is analyzed from the viewpoint of the light scattering theory. A rigorous calcul…
Nonlinear spectroscopy of high-spin fluctuations
A. A. Fomin, M. Yu. Petrov, I. I. Ryzhov +3
We investigate theoretically and experimentally fluctuations of high spin (F>1/2) beyond the linear response regime and demonstrate dramatic modifications of the spin noise spectra…
Defect-related states in MAPbI halide perovskite single crystals revealed by the photoluminescence excitation spectroscopy
A. O. Murzin, N. I. Selivanov, V. O. Kozlov +3
The MAPbI halide perovskite single crystals are studied at 5 K temperature using the photoluminescence excitation spectroscopy. Two non-interacting types of states are determin…
Spin noise signatures of the self-induced Larmor precession
I. I. Ryzhov, V. O. Kozlov, N. S. Kuznetsov +7
Bose-Einstein condensates of exciton-polaritons are known for their fascinating coherent and polarization properties. The spin state of the condensate is reflected in polarization…
Gigantic spin-noise gain enables magnetic resonance spectroscopy of impurity crystals
A. N. Kamenskii, A. Greilich, I. I. Ryzhov +3
Spin noise spectroscopy is a method of magnetic resonance widely used, nowadays, in atomic and semiconductor research. Classical objects of the EPR spectroscopy - dielectrics with…
Stimulated spin noise in an activated crystal
M. M. Sharipova, A. N. Kamenskii, I. I. Ryzhov +5
In the spin noise spectroscopy, the magnetic susceptibility spectrum is known to be provided by the spin-system untouched by any external perturbation, or, better to say, disturbed…
Spin-alignment noise in atomic vapor
A. A. Fomin, M. Yu. Petrov, G. G. Kozlov +4
In the conventional spin noise spectroscopy, the probe laser light monitors fluctuations of the spin orientation of a paramagnet revealed as fluctuations of its gyrotropy, i.e., ci…
Homogenization of Doppler broadening in spin noise spectroscopy
M. Yu. Petrov, I. I. Ryzhov, D. S. Smirnov +7
The spin noise of cesium atoms vapor with admixture of buffer gas is experimentally investigated by measuring the spin induced Faraday rotation fluctuations in the vicinity of D 2…
Spin noise spectroscopy of randomly moving spins in the model of light scattering: Two-beam arrangement
G. G. Kozlov, I. I. Ryzhov, V. S. Zapasskii
A strict analytical solution of the problem of spin-noise signal formation in a volume medium with randomly moving spin carriers is presented. The treatment is performed in the mod…
Spin temperature concept verified by optical magnetometry of nuclear spins
M. Vladimirova, S. Cronenberger, D. Scalbert +5
We develop a method of non-perturbative optical control over adiabatic remagnetisation of the nuclear spin system and apply it to verify the spin temperature concept in GaAs microc…
Light scattering in the medium with fluctuating gyrotropy: application to spin noise spectroscopy
G. G. Kozlov, I. I. Ryzhov, V. S. Zapasskii
The spin noise signal in the Faraday-rotation-based detection technique can be considered equally correctly either as a manifestation of the spin-flip Raman effect or as a result o…
Nuclear spin relaxation in n-GaAs: from insulating to metallic regime
M. Vladimirova, S. Cronenberger, D. Scalbert +7
Nuclear spin relaxation is studied in n-GaAs thick layers and microcavity samples with different electron densities. We reveal that both in metallic samples where electrons are fre…
Optical spin noise spectroscopy: application for study of gyrotropy spatial correlations
G. G. Kozlov, V. S. Zapasskii, I. I. Ryzhov
The single scattering theory is applied to spin noise spectroscopy (SNS). The case of two Gaussian probe beams tilted with respect to each other is analysed. It is shown that SNS s…
Spin noise of a polariton laser
I. I. Ryzhov, M. M. Glazov, A. V. Kavokin +3
We report on experimental study of the exciton-polariton emission (PE) polarization noise below and above the polariton lasing threshold under continuous wave nonresonant excitatio…
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…
Single-shot measurement of transient nuclear magnetization with spin-noise spectroscopy in n-GaAs microcavities
I. I. Ryzhov, S. V. Poltavtsev, K. V. Kavokin +9
We exploit spin noise spectroscopy (SNS) to directly observe build-up of dynamic nuclear polarization and relaxation of a perturbed nuclear spin-system to its equilibrium state in…