?
Analysis of characteristics of InGaAs/GaAs microdisk lasers bonded onto silicon board
St. Petersburg Polytechnical University Journal: Physics and Mathematics. 2022. Vol. 15. No. 3.3. P. 163–166.
In this work we study characteristics of the III-V microdisk lasers bonded onto silicon board. The bonding of microdisk lasers to the silicon substrate reduces their thermal resistance. Here we show improvement in output power, lasing threshold, dynamic characteristics and energy consumption in microdisk lasers with diameters of 31 μm and 19 μm by comparison of the characteristics obtained before and after bonding. Also, estimation of energy-to-data ratio was performed at 13 °C and 20 °C for a 19 μm microdisk lasers after bonding.
Research target:
Electronics and Electrical Engineering
Language:
English
Edward R. Rzaev, Aleksandr Y. Romanov, Andrey M. Sukhov, IEEE Access 2026
This work presents a hierarchy of strictly local fault-tolerant routing algorithms for 3D mesh networks-on-chip, culminating in an algorithm that combines a live-neighbor selection rule with a bounded single-hop rollback mechanism. The proposed algorithms operate exclusively on immediate neighbor information, maintain O(1) per hop complexity, and require no global topology knowledge, additional virtual channels, or ...
Added: July 23, 2026
Sochi: IEEE, 2026.
2026 International Russian Smart Industry Conference (SmartIndustryCon) Copyright and Reprint Permission: Abstracting is permitted with credit to the source. Libraries are permitted to photocopy beyond the limit of U.S. copyright law for private use of patrons those articles in this volume that carry a code at the bottom of the first page, provided the per-copy ...
Added: July 13, 2026
Babichev A., Bobrov M., Vasil'ev A. et al., Applied Physics Letters 2026 Vol. 128 Article 241102
High-quality planar cavities with low-absorption mirrors based on Al0.2Ga0.8As/Al0.9Ga0.1As layers demonstrate continuous wave lasing at a wavelength of 956 nm. At 300 K, the threshold power density and the quality-factor at the threshold are 4.2 kW/cm2 and 6800. Increasing the pump level above two thresholds results in an enlargement in the quality-factor to at least 19 ...
Added: July 8, 2026
IEEE, 2026.
The purpose of the 2026 IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT) is to bring together researchers and practitioners from multiple areas of radio science, including biomedical engineering, radioelectronics, microelectronics, information technology, smart energy, information security and others. ...
Added: July 8, 2026
K. O. Petrosyants, I. A. Kharitonov, Tegin M. S., Russian Microelectronics 2025 Vol. 54 No. 7 P. 743–750
Large temperature jumps in the structures of power semiconductor devices when they are turned
on and off significantly reduce the reliability of power circuits. The widely used electrothermal modeling
approaches for thermal circuits have a number of disadvantages: the use of interconnected Spice simulators
and the numerical 3D thermal field modeling tool requires a detailed description of 3D ...
Added: July 7, 2026
Singapore: Springer, 2025.
This book presents the proceedings of CPESE 2025, the 12th International Conference on Power and Energy Systems Engineering, to be held from 12 to 14 September, 2025 at Kyushu University, Fukuoka, Japan.
This proceedings following a thorough peer-review process conducted in the light of originality, innovation, applicability, technical merit, organization and writing, and relevance to the ...
Added: July 1, 2026
Ivchenko A., Дворкович А. В., Телекоммуникации 2020 Т. 12 С. 2–11
Dynamic Adaptive Streaming over HTTP (DASH) technology powers most multimedia services. Its specific features (re-buffering, quality switching, etc.) necessitate the development of specialized methods for assessing user subjective quality of experience (QoE) based on objective parameters. This article examines the impact of various metrics on QoE and presents assessment models with Spearman correlation coefficients up ...
Added: June 27, 2026
Nigmatullin R. R., Dorokhin S. V., Ivchenko A., Mathematics 2021 Vol. 9 No. 4 Article 381
n this paper, we focus on the generalization of the Hurst empirical law and suggest a set of reduced parameters for quantitative description of long-time series. These series are usually considered as a specific response of a complex system (economic, geophysical, electromagnetic and other systems), where successive fixations of external factors become impossible. We consider ...
Added: June 27, 2026
Springer, 2026.
The book presents the proceedings of the 13th International Conference on Frontiers of Intelligent Computing: Theory and Applications (FICTA 2024), held at Intelligent Systems Research Group (ISRG), London Metropolitan University, London, United Kingdom, during June 6–7, 2025. Researchers, scientists, engineers and practitioners exchange new ideas and experiences in the domain of intelligent computing theories with ...
Added: June 8, 2026
Jiang Q., Fang J., Chen J. et al., Science China Information Sciences 2026 Vol. 69 No. 6 Article 162402
Resonators based on nanoelectromechanical systems (NEMS) using two-dimensional (2D) materials with high-quality factors and excellent electrical control are critical for tunable coherent phonon dynamics, resonant sensors and wireless communications. However, their performance is fundamentally limited by the lack of a unified framework governing energy dissipation mechanisms and their electrical tunability. Here, we synergistically modulate both ...
Added: May 28, 2026
Jin S., Komarov M. M., Scientific Reports 2026
Intrabody communication (IBC) channels offer physiological diversity that can be leveraged for passive biometric identification in wearable devices. Recent reports of over 99 per cent identification accuracy have frequently resulted from data leakage, where samples from the same subject are seen in both training and evaluation, yielding inflated and unreliable metrics. In this work, we ...
Added: May 21, 2026
Масютин Д. А., Moiseev E., Komarov S. et al., Письма в Журнал технической физики 2026 Т. 52 № 7 С. 27–30
Исследованы инжекционные полупроводниковые микролазеры с кольцевым резонатором радиусом 15 мкм с несимметричным расположением внутреннего отверстия резонатора. Показано, что асимметрия обеспечивает формирование в диаграмме направленности двух лепестков излучения, разориентированных на 50° относительно оси смещения внутреннего отверстия. Измеренная добротность резонаторов сопоставима с добротностью дисковых резонаторов и находится на уровне ∼ 10^6. ...
Added: May 18, 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
Методика оценки функциональной безопасности маршрутизаторов на основе вероятностно-физической модели
Polesskiy S., Tumkovskiy S., Tsvetkov V. et al., Информационно-управляющие системы 2026 № 2 С. 49–60
The functional safety of network routers used in critical information infrastructure requires quantitative assessment based on dependability data. Existing safety assessment methods do not account for the influence of physical degradation mechanisms under real operating conditions, which reduces the credibility of the results and complicates the adoption of well-founded engineering decisions. Purpose: Is to improve ...
Added: May 12, 2026
Honolulu: IEEE, 2025.
International Conference on Computer Vision Workshops (ICCVW), Honolulu, HI, USA, 2025 ...
Added: May 3, 2026
Solovyev Roman A., Telpukhov Dmitry, Shafeev I. et al., Technologies 2026 Vol. 14 No. 3 Article 169
With the continuous scaling of semiconductor design technologies, evaluating static IR drop has become a critical bottleneck in the physical synthesis flow. This paper presents a machine learning-based framework that transforms the power delivery network (PDN) analysis problem into an image-to-image translation task using a U-Net architecture with MaxViT and EfficientNet encoders. By implementing a ...
Added: May 3, 2026
Dayoub A., Suleiman E., IEEE, 2026.
2026 8th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)
1-3 April 2026 ...
Added: April 30, 2026
М.: РТУ МИРЭА, 2024.
В сборнике опубликованы работы, представленные на Международной научно-технической конференции «Перспективные материалы и технологии» («ПМТ–2024»), а также работы ведущих ученых и специалистов, занимающихся созданием новых инновационных оптических материалов, исследованиями в области оптоэлектронных и оптоволоконных систем.
Сборник трудов может быть полезен для научных работников и инженеров, работающих по смежным научным направлениям, а также для аспирантов и студентов технических ...
Added: April 29, 2026
М.: РТУ МИРЭА, 2025.
Перспективные материалы и технологии (ПМТ-2025) : Сборник докладов Национальной научно-технической конференции с международным участием, Москва, 07–12 апреля 2025 года. – Москва: МИРЭА - Российский технологический университет, 2025. – 1820 с. ...
Added: April 29, 2026
Bondarenko G.G., Fisher M. R., Kristya V. I., Bulletin of the Russian Academy of Sciences: Physics 2026 Vol. 90 No. 4 P. 572–576
A model of the cathode layer of a glow gas discharge with a thin dielectric film on a fraction of the
cathode’s working surface is formulated. It is shown that a glow discharge most rapidly transits to an arc discharge,
accompanied by a significant increase in discharge current density and a decrease in cathode voltage
drop, if the ...
Added: April 25, 2026
Ершов И. А., Системная инженерия и инфокоммуникации 2025 № 4 С. 11–14
The heat consumption of residential buildings is a stochastic series. It is necessary for the design of thermal energy regulators the creation of a neural network model. In the paper, the model is carried out based on Long Short-Term Memory (LSTM). The high accuracy of reproducing the series was achieved by training the model on ...
Added: April 22, 2026
Babichev A., Makhov I., Kryzhanovskaya N. et al., IEEE Journal on Selected Topics in Quantum Electronics 2026 Vol. 32 No. 6 Article 1700208
Micropillar cavity lasers demonstrate operation up to 255 K. At this temperature, the lasing threshold and Q-factor, extracted at lasing threshold for a 4 μm diameter pillar are about 2 mW and 16800. For pillar lasers, the concept of which is based on an optical aperture, continuous-wave lasing is realized at room temperature (300 K). ...
Added: March 23, 2026
Ivan Melnichenko, Shugabaev T., Fominykh N. et al., Optics Letters 2025 Vol. 50 No. 21 P. 6819–6822
Low-temperature, plasma-free method of sol–gel SiO2 passivation coating film was applied to InGaAsN quantum well microlasers emitting in the 1.2 µm spectral range. A marked enhancement in their optical performance under optical pumping and current injection was found. For optically pumped microlasers, room-temperature lasing was achieved along with a substantial increase in photoluminescence intensity. In the case ...
Added: November 12, 2025
Zhukov A., Moiseev E., Makhov I. et al., Письма в Журнал технической физики 2025 Т. 51 № 20 С. 32–35
The dynamic characteristics of an InGaAs/GaAs quantum dot microring laser were investigated using small-signal high-frequency current modulation at 55 °C. The maximum modulation bandwidth was 3.7 GHz, and the energy consumption during optical transmission was estimated to be 4.2–6.4 pJ/bit. The temperature dependencies of the parameters affecting the speed of operation (K-factor, threshold current, current ...
Added: October 29, 2025