• A
  • A
  • A
  • АБВ
  • АБВ
  • АБВ
  • A
  • A
  • A
  • A
  • A
Обычная версия сайта
  • RU
  • EN
  • HSE University
  • Publications
  • Book chapter
  • Локально деформированные структуры на основе Ge как активная среда для кремниевой оптоэлектроники
  • RU
  • EN
Расширенный поиск
Высшая школа экономики
Национальный исследовательский университет
Priority areas
  • business informatics
  • economics
  • engineering science
  • humanitarian
  • IT and mathematics
  • law
  • management
  • mathematics
  • sociology
  • state and public administration
by year
  • 2027
  • 2026
  • 2025
  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004
  • 2003
  • 2002
  • 2001
  • 2000
  • 1999
  • 1998
  • 1997
  • 1996
  • 1995
  • 1994
  • 1993
  • 1992
  • 1991
  • 1990
  • 1989
  • 1988
  • 1987
  • 1986
  • 1985
  • 1984
  • 1983
  • 1982
  • 1981
  • 1980
  • 1979
  • 1978
  • 1977
  • 1976
  • 1975
  • 1974
  • 1973
  • 1972
  • 1971
  • 1970
  • 1969
  • 1968
  • 1967
  • 1966
  • 1965
  • 1964
  • 1963
  • 1958
  • More
Subject
News
June 5, 2026
Neural Network Maps as a Method for Constructing Mathematical Models
Scientists from HSE University–Nizhny Novgorod and the Institute of Physics Belgrade, Serbia, are jointly exploring the application of machine learning techniques and neural networks to the study of nonlinear dynamics. Natalya Stankevich, Leading Research Fellow at the Laboratory of Topological Methods in Dynamics of the Faculty of Informatics, Mathematics, and Computer Science at HSE University–Nizhny Novgorod, spoke to the HSE News Service about this international project.
June 5, 2026
‘In the Age of Technology, It Is Interesting to Look into the Past and Think about What We Can Take from It
Polina Tabakova decided to apply for a Philology degree at HSE in Nizhny Novgorod because she grew up in Mari El and did not want to move far away from the Russian forests. In an interview for the Young Scientists of HSE University project, she spoke about the genre of the campus novel, the existential drama of Kolobok, and a blackout version of Eugene Onegin.
June 5, 2026
HSE Scientists Develop Method to Compress Large Language Models Without Losing Quality
Researchers from the AI and Digital Science Institute at the HSE Faculty of Computer Science have developed a new compression method for large language models such as GPT and LLaMA that reduces their size by 25–36% without additional training or significant loss of accuracy. This is the first approach to use mathematical transformations—specifically, rotations of model weights—to make models more amenable to compression with structured matrices. The study results have been published in ACL Findings 2025. The code is available on GitHub.

 

Have you spotted a typo?
Highlight it, click Ctrl+Enter and send us a message. Thank you for your help!

Publications
  • Books
  • Articles
  • Chapters of books
  • Working papers
  • Report a publication
  • Research at HSE

?

Локально деформированные структуры на основе Ge как активная среда для кремниевой оптоэлектроники

С. 898–899.
Юрасов Д. В., Байдакова Н. А., Verbus V. A., Гусев Н. С., Машин А. И., Морозова Е. Е., Нежданов А. В., Новиков А. В., Скороходов Е. Е., Шенгуров Д. В., Яблонский А. Н.

The results of formation of locally stretched Ge microstructures and investigation of their optical properties are presented. Free-hanging Ge structures were obtained by optical lithography, plasma chemical etching and selective chemical etching using the "stress concentration" method. To provide heat dissipation from free-hanging structures, the scheme of their formation was modified so as to provide mechanical contact of the suspended part of the microstructure with the substrate. A significant increase in the intensity of the photoluminescence signal was demonstrated in the stretched regions of These microstructures and the possibility of increasing the maximum optical pumping power (which does not lead to irreversible changes) for microstructures in which the stretched part is mechanically in contact with the substrate, compared with free-hanging structures

Language: Russian
Full text
Text on another site
Keywords: PhotoluminescenceФотолюминесценцияGe microstructuresGe микроструктуры

In book

Труды ХХIII Международного симпозиума «Нанофизика и наноэлектроника», 11-14 марта 2019, Нижний Новгород, т.2,
Т. 2: Полупроводниковые наноструктуры:. , Нижегородский государственный университет им. Н.И. Лобачевского, 2019.
Similar publications
Optimal As/Ga flux ratio for low-temperature overgrowth of InAs quantum dots dependent on the GaAs overgrowth rate
Balakirev S. V., Makhov I., Kirichenko D. V. et al., Optical Materials 2025 Vol. 163 Article 116964
We reveal a strong dependence of optical properties of InAs quantum dots (QDs) on the As/Ga flux ratio used during the overgrowth with a low-temperature GaAs layer. Evaluating various characteristics of the photoluminescence spectra, we determine an optimal As/Ga flux ratio which allows formation of QDs emitting at the longest wavelengths, with the highest intensity and the largest ...
Added: April 17, 2025
Phase diagram of magnetoexciton condensate
Koreyev A. S., P.S. Berezhnoy, Gorbunov A. V. et al., Physical Review B: Condensed Matter and Materials Physics 2024 Vol. 110 No. 16 Article 165417
The phase diagram of the “gas-magnetoexciton condensate” transition of an excited two-dimensional electron system placed in a quantizing magnetic field has been constructed in the “temperature-laser excitation power density” coordinates. Based on the experimental data, we can conclude that the condensate is a collective, incompressible in real space, excited state of a quantum Hall insulator. ...
Added: January 10, 2025
Growth of Three-Dimensional InGaN Nanostructures by Plasma-Assisted Molecular Beam Epitaxy
Gridchin V., Kotlyar K., Ubyivovk E. et al., ACS Applied Nano Materials 2024 Vol. 7 No. 15 P. 17460–17468
A study on the formation of InGaN ternary compounds in the three-dimensional growth mode is presented. For the first time, we demonstrate that the self-organization during InGaN growth is responsible for the formation of core−shell nanowires (NWs), nanotubes, zinc blende (ZB) phases, and nanoflowers. It is found that the core−shell InGaN NWs are formed at the very initial stage of growth. ...
Added: October 18, 2024
Влияние состава волноводного слоя на излучательные параметры лазерных гетероструктур InGaAlAs/InP спектрального диапазона 1550 нм
Новиков И. И., Няпшаев И. А., Гладышев А. Г. et al., Физика и техника полупроводников 2022 Т. 56 № 9 С. 933–939
Исследовано влияние состава волновода InGaAlAs на фотолюминесценцию и электролюминесценцию гетероструктур спектрального диапазона 1550 нм на основе тонких напряженных квантовых ям In0.74Ga0.26As. Предложен подход, позволяющий на основе анализа электролюминесценции провести сравнительный анализ параметров усиления изготовленных лазерных гетероструктур. Показано, что уменьшение доли алюминия в составе волноводных слоев гетероструктуры, согласованных по постоянной решетки с фосфидом индия, приводит к ...
Added: January 4, 2023
Photoluminescence properties of InAs quantum dots overgrown by a low-temperature GaAs layer under different arsenic pressures
Balakirev S., Chernenko N., Kryzhanovskaya N. et al., Electronics 2022 Vol. 11 No. 23 Article 4062
We studied the influence of the arsenic pressure during low-temperature GaAs overgrowth of InAs quantum dots on their optical properties. In the photoluminescence spectrum of quantum dots overgrown at a high arsenic pressure, we observed a single broad line corresponding to unimodal size distribution of quantum dots. Meanwhile, two distinct peaks (~1080 and ~1150 nm) ...
Added: December 13, 2022
Synthesis and optical properties of heterogeneous film structure based on InP/InAsP/InP nanowires
Khrebtov A. I., Kulagina A. S., Danilov V. V. et al., Journal of Optical Technology (A Translation of Opticheskii Zhurnal) 2022 Vol. 89 No. 5 P. 298–301
Subject of study. The dependence of the photoluminescence of a flexible film structure, which is an array of InP/InAsP/InP nanowires incorporated into a polymerized trioctylphosphine oxide layer with CdSe/ZnS colloidal quantum dots, on the intensity of excitation in the near-infrared range at room temperature was investigated in this study.Method. Nanowires were synthesized on a Si (III) substrate by ...
Added: September 26, 2022
Doping effect on the light absorption and photoluminescence of Ge/Si quantum dots in the infrared spectral range
Vinnichenko M. Y., Makhov I., Ustimenko R. V. et al., Micro and Nanostructures 2022 Vol. 169 Article 207339
The results of comprehensive studies of near-infrared photoluminescence and mid-infrared equilibrium and photoinduced absorption spectra in structures with Ge/Si quantum dots with different doping levels at different optical pumping intensities and different temperatures are presented. Obtained dependences of interband photoluminescence spectra on temperature and optical pumping intensity are explained by the change in the intensities of direct and indirect in real space electron-hole ...
Added: September 5, 2022
Effect of compensation and near-infrared lasing on donor-related terahertz photoluminescence in GaAs/AlGaAs quantum wells
Ivan S. Makhov, Panevin V., Vorobjev L. et al., , in: 2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).: IEEE, 2021. P. 1–2.
Added: July 5, 2022
Terahertz photoluminescence of the donor doped GaAs/AlGaAs quantum wells controlled by the near-infrared stimulated emission
Makhov I. S., Panevin V. Y., Firsov D. A. et al., Journal of Luminescence 2019 Vol. 210 P. 352–357
The low-temperature terahertz and near-infrared photoluminescence from the near-infrared laser nanostructure with GaAs/AlGaAs quantum wells doped with shallow donors is studied under intense interband optical excitation. The optical electron transitions involving excited and ground donor states in quantum wells are revealed in terahertz and near-infrared photoluminescence spectra. Impurity assisted near-infrared stimulated emission under interband optical ...
Added: October 15, 2021
Impurity-assisted terahertz photoluminescence in compensated quantum wells
Makhov I. S., Panevin V. Y., Firsov D. A. et al., Journal of Applied Physics 2019 Vol. 126 No. 17 Article 175702
The terahertz radiation in GaAs/AlGaAs quantum wells with different types of doping was experimentally studied under interband optical excitation of nonequilibrium charge carriers. The structures doped only with donors, and the structures with a high degree of compensation of donors by acceptors were studied. The spectra of terahertz radiation associated with charge carrier transitions with ...
Added: October 15, 2021
Influence of the doping type on the temperature dependencies of the photoluminescence efficiency of InGaAlAs/InGaAs/InP heterostructures
Novikov I., Nadtochiy A., Potapov A. Y. et al., Journal of Luminescence 2021 Vol. 239 Article 118393
The temperature dependencies of photoluminescence efficiency of InGaAlAs/InGaAs/InP heterostructures with 1550 nm range strained quantum wells have been studied. The heterostructures had nine In0.74Ga0.26As quantum wells which were separated by In0.53Al0.20Ga0.27As barriers. The barriers were δ-doped with n- and p-type dopants with different layer concentrations of charge carriers. The both p-type and n-type doping of barriers leads to slight ...
Added: August 30, 2021
Metamorphic InAs(Sb)/InGaAs/InAlAs nanoheterostructures grown on GaAs for efficient mid-IR emitters
Ivanov S., Chernov M. Y., Solov'ev V. A. et al., Progress in Crystal Growth and Characterization of Materials 2019 Vol. 65 No. 1 P. 20–35
High-efficiency semiconductor lasers and light-emitting diodes operating in the 3–5 μm mid-infrared (mid-IR) spectral range are currently of great demand for a wide variety of applications, in particular, gas sensing, noninvasive medical tests, IR spectroscopy etc. III-V compounds with a lattice constant of about 6.1 Å are traditionally used for this spectral range. The attractive idea to fabricate such emitters on GaAs substrates by using In(Ga,Al)As ...
Added: May 31, 2021
Strongly Confined Excitons in GaN/AlN Nanostructures with Atomically Thin GaN Layers for Efficient Light Emission in Deep-Ultraviolet
Toropov A. A., Evropeitsev E. A., Nestoklon M. O. et al., Nano Letters 2020 Vol. 20 No. 1 P. 158–165
Fascinating optical properties governed by extremely confined excitons have been so far observed in 2D crystals like monolayers of transition metal dichalcogenides. These materials, however, are limited for production by epitaxial methods. Besides, they are not suitable for the development of optoelectronics for the challenging deep-ultraviolet spectral range. Here, we present a single monolayer of ...
Added: February 19, 2021
Study of photoluminescence and electroluminescence mechanisms in quantum-confined InSb/InAs heterostructures
Terent'ev Y. V., Mukhin M., Solov'ev V. A. et al., Semiconductors 2010 Vol. 44 No. 8 P. 1064–1069
Photoluminescence and electroluminescence in InSb/InAs heterostructures with ultrathin InSb insertions grown by molecular-beam epitaxy have been systematically studied. Measurements were made in the temperature range from 2 to 300 K on a large set of samples of various designs, with both the InAs matrix and ultrathin InSb insertions grown by different methods. The primary goal ...
Added: February 19, 2021
Strain-engineered Ge embedded into microresonators as an active media for Si photonics
Yurasov D. V., Gusev N. S., Dyakov S. A. et al., , in: 2019 IEEE 16th International Conference on Group IV Photonics (GFP), 28-30 August 2019, Singapure.: Singapore: IEEE, 2019. P. 1–2.
Optical properties of tensile strained n-doped Ge microstructures were investigated. Formation of microresonators based on Bragg reflectors and photonic crystals were implemented for such kind of active medium and opportunities to employ them for fabrication of efficient Si-compatible light sources were discussed. ...
Added: October 28, 2019
Locally Strained Ge/SOI Structures with an Improved Heat Sink as an Active Medium for Silicon Optoelectronics
Yurasov D. V., Baidakova N. A., Verbus V. A. et al., Semiconductors 2019 Vol. 53 No. 10 P. 1324–1328
The results on the formation of locally strained Ge microstructures on silicon-on-insulator (SOI) substrates and investigation of their optical properties are presented. Suspended Ge structures are formed by optical lithography and plasmachemical and selective chemical etching using the “stress concentration” approach. To provide a heat sink from Ge microstructures, their formation scheme is modified so ...
Added: October 24, 2019
  • About
  • About
  • Key Figures & Facts
  • Sustainability at HSE University
  • Faculties & Departments
  • International Partnerships
  • Faculty & Staff
  • HSE Buildings
  • HSE University for Persons with Disabilities
  • Public Enquiries
  • Studies
  • Admissions
  • Programme Catalogue
  • Undergraduate
  • Graduate
  • Exchange Programmes
  • Summer University
  • Summer Schools
  • Semester in Moscow
  • Business Internship
  • Research
  • International Laboratories
  • Research Centres
  • Research Projects
  • Monitoring Studies
  • Conferences & Seminars
  • Academic Jobs
  • Yasin (April) International Academic Conference on Economic and Social Development
  • Media & Resources
  • Publications by staff
  • HSE Journals
  • Publishing House
  • iq.hse.ru: commentary by HSE experts
  • Library
  • Economic & Social Data Archive
  • Video
  • HSE Repository of Socio-Economic Information
  • HSE1993–2026
  • Contacts
  • Copyright
  • Privacy Policy
  • Site Map
Edit