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Proceedings of SPIE, Volume 10912, Physics and Simulation of Optoelectronic Devices XXVII
Bellingham :
SPIE, 2019.
PROCEEDINGS OF SPIE
Volume 10912
Physics and Simulation of Optoelectronic Devices XXVII
Bernd Witzigmann
Marek Osiński
Yasuhiko Arakawa
Editors
5–7 February 2019
San Francisco, California, United States
Chapters
Voronova N., Kurbakov I., Yurii E. Lozovik, , in: Proceedings of SPIE, Volume 10912, Physics and Simulation of Optoelectronic Devices XXVII.: Bellingham: SPIE, 2019. P. 1091205-1–1091205-17.
The possibility to observe a macroscopically coherent state in a gas of two-dimensional direct excitons at temperatures up to tens of Kelvin is described. The dramatic increase of the exciton lifetime allowing effective thermalization is predicted for the o -resonant cavities that strongly suppress exciton recombination. The material
systems considered are single GaAs quantum wells of ...
Added: November 1, 2019
Do T. T., Xing J., Liu S. et al., APL Materials 2025 Vol. 13 No. 9 Article 091111
Semiconductor lead halide perovskites have attracted significant attention for various applications. Understanding the impact of material composition on optical properties is essential for optimizing device performance. Here, we performed magneto-optical spectroscopy on high-quality bulk CsPbBr3, MAPbBr3, and MAPbI3 single crystals under magnetic fields of up to 30 T. The results revealed distinctive excitonic responses to the magnetic ...
Added: January 26, 2026
Kar M., Sarkar R., Pal S. et al., Physical Review B: Condensed Matter and Materials Physics 2020 Vol. 101 No. 19 P. 195305
In this article, we propose a new two-dimensional CP3 material with distinguished properties from comprehensive first-principles calculations. It has excellent thermal, mechanical, and dynamical stabilities and promise for experimental fabrication. The low cleavage energy (0.57J/m2) implies the plausibility of CP3 single-layer exfoliation from bulk structure. Other than exfoliation, we predict an alternative route to synthesize CP3 monolayer through C atoms doping ...
Added: November 19, 2025
Kar M., Sarkar R., Pal S. et al., Journal of Physical Chemistry C 2020 Vol. 124 No. 39 P. 21357–21365
Two-dimensional (2D) van der Waals heterostructures formed by stacking two different 2D materials have gained immense attention as they have the potential to show interesting properties. Herein, we report the detailed electronic structure of recently synthesized MoS2/SnS2 and MoSe2/SnS2 heterostructures obtained through density functional calculations. Our study shows that the MoS2/SnS2 heterostructure has a type-I band alignment with ...
Added: November 19, 2025
Khoroshko V., Pugach N., Stanchik A. et al., The Journal of Physical Chemistry Letters 2025 Vol. 16 No. 28 P. 7212–7216
Cu2ZnGeS4xSe4(1−x) (CZGSSe) single crystals were grown by chemical
vapor transport (CVT) from synthesized polycrystals using iodine as a transport
agent. The elemental analysis showed good agreement with stoichiometry. The values
of the band gap of solid solutions are determined from the transmission spectra in the
region of the absorption edge, and its concentration dependence, which has a
nonlinear quadratic dependence ...
Added: November 17, 2025
-, 2025.
12-th International School and Conference “Saint Petersburg OPEN
2025” on Optoelectronics, Photonics, Engineering and Nanostructures
carries on the tradition of annual conferences and schools organized at
St Petersburg Academic University for students, PhD students and young
scientists. More detailed information on the School and Conference is
presented on https://spb.hse.ru/spbopen/
The Book of Abstracts includes abstracts of contributed works accepted
for presentation at ...
Added: October 29, 2025
Кузьминых И. О., Kuzin A., Флоря И. Н. et al., Нано- и микросистемная техника 2025 Т. 27 № 4 С. 184–194
В работе рассмотрены основные варианты детектирования водорода, а также приведены требования, которые предъявляются к сенсорам водорода. Проанализированы преимущества и недостатки существующих решений по детектированию водорода и проведен сравнительный анализ основных метрик коммерчески доступных сенсоров водорода. Было установлено, что оптические сенсоры преодолевают основную проблему существующих сенсоров – использование электрического тока в чувствительной зоне сенсоров. Данная обзорная ...
Added: April 30, 2025
K.V. Shein, A.N. Lyubchak, Zharkova E. et al., St. Petersburg Polytechnical University Journal: Physics and Mathematics 2024 Vol. 17 No. 3.2 P. 241–245
Photonic integrated circuits (PIC) represent a promising platform for applications in the field of quantum technologies, such as quantum computing and cryptography. One of the key components for these applications is detectors based on thin superconducting films. Nevertheless, fabricating thin detectors atop a waveguide utilizing conventional superconducting materials acquired through magnetron sputtering presents a multifaceted ...
Added: November 5, 2024
St. Petersburg: IEEE, 2022.
The 2023 International Conference on Electrical Engineering and Photonics (EExPolytech-2023) was held at Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia, October 19-20, 2023. The main goal of the conference was to bring together specialists in closely related fields like electronics engineering, signal processing, materials science and photonics thus promoting fluent knowledge dissemination. ...
Added: May 31, 2024
Chen M., Kong X., Xie X. et al., Physical Chemistry Chemical Physics 2023 Vol. 26 No. 4 P. 3285 – 3295
In two-dimensional (2D) materials, breaking the inversion symmetry plays an important role in valleytronics. Ferrovalley (FV) materials can achieve spontaneous valley polarization (VP) without additional modulation due to the magnetic exchange interaction and strong spin–orbit coupling. Using first-principles calculations, we predict a new 2D material, Janus FeClSH, which exhibits a large spontaneous VP. This monolayer ...
Added: April 20, 2024
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