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  • Увеличение эффективности тандема полупроводниковый лазер-оптический усилитель на основе самоорганизующихся 8s квантовых точек
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News
June 22, 2026
‘In Science, You Are Your Own Boss
Polina Nasledskova is interested in identifying gaps in linguistics and topics that have been overlooked by other researchers. In an interview for the  Young Scientists of HSE University project, she spoke about rare ordinal numerals in Nakh-Daghestanian languages, the benefits of knitting for concentration, and the beauty of the Patriarshy Bridge.
June 19, 2026
HSE Researchers Determine Which Internet Users Are More Likely to Fact-Check
Researchers at HSE University examined the strategies employed by Russian internet users to verify unreliable information and the factors that motivate them to do so. The study found that more than half of users who encounter potentially false information online attempt to verify it by locating the original source. The likelihood of fact-checking is influenced by several factors, including age, place of residence, social status, information literacy skills, and the use of AI. The findings have been published in Monitoring of Public Opinion: Economic and Social Changes.
June 5, 2026
'Im Used to Producing Distilled Knowledge'
Ivan Rubachev works in a HSE University laboratory established jointly with Yandex Research, where he focuses on machine learning with tabular data. In this interview with the HSE Young Scientists project, he discusses why following a vibe can be better than goal-setting, explains the concept of the Neural Turing Machine, and argues why withholding scientific knowledge is counterproductive.

 

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Увеличение эффективности тандема полупроводниковый лазер-оптический усилитель на основе самоорганизующихся 8s квантовых точек

Физика и техника полупроводников. 2021. Т. 55. № 12. С. 1223–1228.
Zhukov A., Kryzhanovskaya N., Moiseev E., Dragunova A., Nadtochiy A., Максимов М. В., Гордеев Н. Ю.

The rate equations are used to analyze the characteristics
of a tandem consisting of a laser diode and a semiconductor
optical amplifier made of a single heterostructure with quantum
dots. The optimal value of the current distribution coefficient
the amplifier and the laser, as well as the optimal resonator
length that provides the highest output power of the tandem
were determined. It is shown that the use of the tandem allows,
at the same total consumed current, to significantly (more than
4 times for 1A) increase the power emitted through the groundstate
optical transition in comparison with that achievable with a
laser diode solely being limited by the onset of lasing through an
excited-state optical transition.

Research target: Nanotechnologies Physics
Language: Russian
Full text
DOI
Text on another site
Keywords: квантовые точкиmicrolaserмикролазерыSemiconductor quantum dotssemiconductor optical amplifierоптический усилитель
Publication based on the results of:
Investigation of the temperature and time characteristics of heterostructures with quantum dots and micro-emitters based on them (2021)
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