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Current induced drag of photons in GaAs/AlGaAs quantum wells
Micro and Nanostructures. 2022. Vol. 167. Article 207288.
The effect of current drag of photons is experimentally investigated in the mid-infrared spectral range corresponded to the intersubband optical electron transitions in GaAs/AlGaAs quantum wells at room temperature for the first time. The optical electron transitions between the first and second electron subbands in quantum wells are revealed in light absorption spectra in the mid-infrared range. The dependences of the change in the refractive index on the lateral current in quantum wells are obtained for different light polarizations. A substantial spectral dependence of the effect is observed for p-polarized radiation.
Dmitriev A., Kornilov V., Batienkov R., Lecture Notes in Civil Engineering 2026 Vol. 886 P. 249–255
Numerous studies have provided compelling evidence that the probability distribution of avalanche sizes follows a power law, and that 1/f noise is present in the stochastic dynamics of landslides. We present a theoretical explanation of these phenomena within the framework of self-organized criticality theory, proposing a discrete-time model in the form of a sandpile cellular ...
Added: October 13, 2026
Dmitriev A., Shulman I., Lebedev A., Studies in Computational Intelligence 2026 Vol. 1265 P. 266–273
A discrete-time model is presented for the self-organization of the X/Twitter social network to the edge of a phase transition, characterized by avalanche-like propagation of information in the network. The model is based on the analogy between the critical dynamics of the X social network and sandpile cellular automata with Manna rule on the Chung-Lu ...
Added: October 13, 2026
Arutyunov K., Kharitonov I. A., Petrosyants K. O., JETP Letters 2026 Vol. 124 No. 6 P. 1–16
Superconducting properties of metallic micro- and nanowires can be entirely different from those of bulk superconductors. Of particular interest is the nonequilibrium current-induced state of a quasi-one-dimensional superconducting channel. The most interesting phenomenon here is the stepped I–V characteristic, explained by a process known as phase slip center activation. If the origin of such step-like ...
Added: October 13, 2026
Makarov D. M., Kalikin N., Fashchevsky K. A. et al., Electrochimica Acta 2026 Vol. 579 Article 150159
Machine learning (ML) has become a powerful tool for accelerating the development of carbon-based supercapacitors;
however, most published models assume that a single predictive framework can describe both conventional
porous carbons and hybrid carbon electrodes. Here, we test this assumption using a comprehensive
benchmark dataset and an extended literature-curated dataset enriched with synthesis- and electrolyte-related
descriptors. Three ML algorithms ...
Added: October 13, 2026
Махлуф М., Ozhegov R., Elezov M. et al., Фотоника 2026 Vol. 20 No. 6 P. 414–423
This paper compares the ranging precision of direct time-of-flight (dToF) and non-line-of-sight (NLOS) LiDAR architectures, both using a superconducting nanowire single-photon detector (SNSPD). Both systems operate at 1550 nm with a 50 ps pulsed laser and time-correlated single-photon counting (TCSPC). The dToF configuration achieved approximately 100 µm precision at 10 m, while the NLOS configuration achieved 500 µm precision for ...
Added: October 12, 2026
Singapore: Springer, 2026.
This volume presents the Proceedings of the 34th IUPAP Conference on Computational Physics (CCP2023), held in Kobe, Japan on August 4–8, 2023. It offers a collection of peer-reviewed articles that highlight recent developments in computational and simulation research across various areas of physics. Key topics include the use of data science, quantum computing, and machine ...
Added: October 12, 2026
Goncharov A., Chibisov A., Advanced Theory and Simulations 2023 Vol. 12 No. 13 Article 2200816
Designing stable quantum computers with the ability to correct errors responsibly requires a detailed understanding of the physical processes that underlie these devices. In this study, detailed quantum mechanical simulations of the atomic structure, charge distribution of electron density, and distribution and orientation of magnetic and quantum states as a function of applied external pressure ...
Added: October 11, 2026
Chibisov A., Gnidenko A., Chibisova M. et al., FlatChem 2023 Vol. 41 Article 100533
Manufacturing precise quantum computers with small errors in quantum operations, long coherence times, and low power consumption is the most important challenge in modern nanoelectronics. To understand the operating modes of such calculators in detail, both the optimal arrangement of the qubit system within the structure and changes in its magnetic properties must be comprehensively ...
Added: October 11, 2026
Veronica Voitovich, Makhov I., Ivan Melnichenko et al., Optics Letters 2026 Vol. 51 No. 17 P. 4872–4875
The influence of cavity surface passivation with SiO2 coating deposited by the plasma-enhanced chemical vapor deposition technique is investigated for injection microdisk lasers with an InGaAsN/GaAs quantum well active region. The electroluminescence spectra of the microdisk lasers with cavity diameters ranging from 12 to 32 μm with and without sidewall surface passivation were studied for a ...
Added: September 25, 2026
Denis K., Dorokhin M. V., Ved M. V. et al., Physical Review B: Condensed Matter and Materials Physics 2021 Vol. 104 No. 12 Article 125309
The GaAs/InGaAs quantum wells with a ferromagnetic δ〈Mn〉 layer in GaAs barrier demonstrate a set of interesting spin-related phenomena originating from Mn-hole interaction. One of such phenomena is a spin-memory effect which consists of Mn spin polarization induced by interaction with vicinity spin-polarized holes generated under the exposure by short circularly polarized light pulses. Here long Mn ...
Added: September 6, 2026
Вишняков Г. Н., Yurin A., Minaev V. et al., Измерительная техника 2026 Т. 75 № 2 С. 46–57
The problems of metrological assurance for measuring the refractive index of solid optical materials (silicon, germanium, etc.) used in the infrared range of the spectrum (infrared materials) are considered. The refractive index of optical materials in the infrared wavelength range must be known with high accuracy when developing optics for thermal imagers, night vision devices, ...
Added: May 14, 2026
Yurin A., Vishnyakov G., Minaev V., Physica Scripta 2026 Vol. 101 Article 015501
This paper describes goniometric methods for measuring the refractive index (RI) based on measuring the angles of light deviation with a triangular prism made from the material under study. Three-sided goniometric methods (TGM) involving measuring the angles of light deviation on all three faces of a prism and determining the RI by solving a system ...
Added: December 22, 2025
Yurin A., Krasivskaya M., Физические основы приборостроения 2025 Т. 14 № 2(56) С. 70–73
The paper considers the error of the autocollimation method for measuring the refractive index of triangular prisms and its comparison with the error of the modified method, in which autocollimation occurs from an additional mirror mounted on the path of the beam refracted by the prism. The analysis of the dependence of the measurement error ...
Added: November 12, 2025
Semenov A., Latyshev A., Andrei D. Zaikin, Physical Review Letters 2025 Vol. 134 No. 8 Article 086001
We predict two novel quantum drag effects which can occur in macroscopically quantum coherent
Josephson circuits. We demonstrate that biasing one resistively shunted Josephson junction by an external
current one can induce a nonzero voltage drop across another such junction capacitively coupled to the first
one. This quantum Coulomb drag is caused by cotunneling of magnetic flux quanta ...
Added: March 17, 2025
Vlasov V., Aleksei Y. Kuzin, Florya I. et al., Journal of Energy Storage 2025 Vol. 111 Article 115349
This research presents an advanced method for measuring State of Charge (SoC) in Vanadium Redox Flow
Batteries (VRFB) using Refractive Index (RI) combined with Machine Learning (ML). The study comprised of
three primary phases: ex-situ measurements, in-operando measurements, and ML model training. Initially, tests
were conducted using a hybrid photonic-microfluidic sensor on simulated solutions mimicking specific VRFB
SoCs. Subsequently, ...
Added: February 26, 2025
Yurin A., Vishnyakov G., Minaev V. et al., Measurement Science and Technology 2024 Vol. 35 No. 12 Article 125204
We present a new autocollimation method for measuring the refractive index (RI) of transparent triangular prisms. The classical autocollimation method is simple, but due to total internal reflection it is suitable only for prisms with small angles, which limits the accuracy of RI measurements. The proposed new method makes possible the autocollimation measurements of the RI for prisms with ...
Added: September 23, 2024
Azat F. Aminov, Alexey A. Sokolik, Yurii E. Lozovik, Physical Review A: Atomic, Molecular, and Optical physics 2024 Vol. 110 No. 1 Article 013318
Two-component systems consisting of mutually interacting particles can demonstrate both intracomponent transport effects and intercomponent entrainment (or drag) effects. In the presence of superfluidity, the intracomponent transport is characterized by dissipative conductivity and superfluid weight in the framework of two-fluid model, and intercomponent entrainment gives rise to normal and nondissipative drag effects. We present unified ...
Added: July 22, 2024
Адамов Р. Б., Мелентьев Г. А., Подоскин А. А. et al., Физика и техника полупроводников 2023 Т. 57 № 8 С. 663–673
Исследованы фото- и электролюминесценция в p-i-n-структурах с компенсированными квантовыми ямами GaAs/AlGaAs с различными профилями легирования: с пространственным разделением доноров и акцепторов (доноры локализованы в квантовых ямах, акцепторы - в барьерах) и без него (и доноры, и акцепторы локализованы в квантовых ямах). Изучались спектральные характеристики люминесценции в ближнем ИК диапазоне при гелиевых температурах. Выявлены линии излучательной ...
Added: February 5, 2024
Yurin A., Вишняков Г. Н., Minaev V., Компьютерная оптика 2024 Т. 48 № 2 С. 225–230
Dispersion characteristics of optical glass are considered. An approach to research of dispersion characteristics of optical glass is proposed, requiring the measurement of the refractive index at only three wavelengths, which simplifies the measurement process compared with the use of the widely used Sellmeier equation. An approximation function for the refractive index of optical glass ...
Added: January 2, 2024
Yurin A., Vishnyakov G., Minaev V. et al., Measurement Science and Technology 2024 Vol. 35 No. 3 Article 035204
Added: December 19, 2023
Вишняков Г. Н., Yurin A., В кн.: HOLOEXPO 2023: тезисы докладов 20-й международной конференции по голографии и прикладным оптическим технологиям.: СПб.: Санкт-Петербургский государственный электротехнический университет ЛЭТИ им. В.И.Ульянова (Ленина), 2023. С. 250–253.
Рассмотрены гониометрические методы измерений показателя преломления оптически прозрачных материалов. Предложен модифицированные метод, основанный на методе наименьшего отклонения, позволяющий определять показатель преломления трехгранных призм с неизвестными преломляющими углами. В предложенном методе производят измерения углов отклонения света на трех гранях призмы, а показатель преломления материала и преломляющие углы определяют из решения системы уравнений. Приведена оценка влияния погрешности ...
Added: November 19, 2023
Adamov R. B., Melentev G. A., Sedova I. V. et al., Journal of Luminescence 2024 Vol. 266 Article 120302
Terahertz (THz) luminescence in doped nanostructures with GaAs/AlGaAs quantum wells is studied under conditions of interband optical pumping. The study is carried out on compensated quantum wells with different doping profiles. In one structure, compensation is carried out directly in each quantum well by introducing donors and acceptors with the same concentration. In the other, ...
Added: November 12, 2023
Мельниченко И. А., Kryzhanovskaya N., Ivanov K. et al., Оптика и спектроскопия 2023 Т. 131 № 8 С. 1112–1117
Исследованы оптические свойства цилиндрических мезаструктур на основе GaAs до и после пассивации, выполненной с применением обработки структур в водородной плазме с последующим атомно-слоевым осаждением слоя Al2O3. В качестве светоизлучающей области мезаструктур использованы квантовая яма In0.2Ga0.8As/GaAs и сверхрешетка GaAs/AlAs. Диаметр мез изменялся от 3 до 20 μm. В результате пассивации получено 8-кратное увеличение интенсивности фотолюминесценции мез ...
Added: October 26, 2023
Yurin A., Вишняков Г. Н., Minaev V. et al., Научно-технический вестник информационных технологий, механики и оптики 2023 Т. 23 № 5 С. 1073–1076
The paper proposes a modified method for measuring the refractive index of a triangular prism using an autocollimation angle measuring system designed to measure angles formed by flat surfaces of objects. The method involves using a fixed mirror to reflect the refracted beam, measurement of the angles of incidence of the beam on the face ...
Added: October 13, 2023