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Корнеев Александр Александрович

Московский институт электроники и математики им. А.Н. Тихонова

Профиль на hse.ru ↗ тел.: +7 (903) 970-72-53 | 15220
Публикаций
75
Языков
2
Наград
5
Конференций
0
Профиль Публикации (75) Курсы (5)

Профессиональные интересы

физикасверхпроводимостьсверхпроводниковая электроникасверхпроводниковый однофотонный детекторквантовая оптикаинтегральная оптика

Должности

  • Профессор — Московский институт электроники и математики им. А.Н. Тихонова, Департамент электронной инженерии

Био

  • · Начал работать в НИУ ВШЭ в 2013 году.
  • · Научно-педагогический стаж: 24 года.

Образование

  • 2016 · Доктор физико-математических наук
  • 2006 · Кандидат физико-математических наук
  • 2000 · Специалитет: Московский педагогический государственный университет, специальность «Физика с дополнительной специальностью филология», квалификация «Учитель физики и иностранного языка (английский язык)»

Опыт работы

  • · 2022: настоящее время: профессор, МИЭМ НИУ ВШЭ
  • · 2007 - 2022: : профессор, Московский педагогический государственный университет (МПГУ)
  • · 2013: настоящее время: доцент, МИЭМ НИУ ВШЭ
  • · 2015 - 2016: : доцент, Московский физико-технический институт (МФТИ)
  • · 2014 - 2016: : ведущий научный сотрудник, заведующий лабораторией, Московский физико-технический институт (МФТИ)
  • · 2005 - 2007: : старший преподаватель, Московский педагогический государственный университет (МПГУ)
  • · 2000 - 2005: : научный сотрудник, Московский педагогический государственный университет (МПГУ)

Награды и поощрения

  • · Благодарность Московского института электроники и математики им. А.Н. Тихонова НИУ ВШЭ (февраль 2026)
  • · Надбавка за публикацию в журнале из Списка А (и приравненном к нему научном издании) (2025–2026, 2024–2025, 2023–2024)
  • · Надбавка за публикацию в международном рецензируемом научном издании (2022–2023, 2021–2022, 2019–2021)
  • · Надбавка за статью в зарубежном рецензируемом журнале (2014–2016)
  • · Надбавка за статью в зарубежном рецензируемом научном издании (2016–2018)

Гранты и проекты

  • — · на соискание учёной степени кандидата наук

Идентификаторы исследователя

Публикации (75)

Comparison single- And double- spot detection efficiencies of SSPD based to MoSi and NbN films

2020 · ARTICLE · en

© Published under licence by IOP Publishing Ltd.In this work, we present results of quantum detector tomography of superconducting single photon detector (SSPD) based on MoSi film, and compare them with previously reported data on NbN. We find that for both materials hot spot interaction length coincides with the strip width, and the dependence of single and double-spot detection efficiencies on bias current are compatible with sufficiently large hot-spot size, approaching the strip width.

DOI ↗

Extracting hot-spot correlation length from SNSPD tomography data

2019 · ARTICLE · en

We present data of quantum detector tomography for the samples specifically optimized for this problem. Using this method, we take results of hot-spot correlation length of 17 ± 2 nm. 1.

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CWDM demultiplexer using anti-reflection, contra-directional couplers based on silicon nitride rib waveguide

2019 · ARTICLE · en

We report on the development and fabrication of a 9-channel coarse wavelength- division multiplexing for telecommunication wavelengths (1550 nm) using anti-reflection contra-directional couplers, based on silicon nitride (Si3N4) rib waveguide. The transmitted and reflected spectrum in each channel of the demultiplexer were measured. The average full width at half maximum of the transmitted (reflected) spectra is about 3 nm. 1

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Superconducting photon counter for nanophotonics applications

2019 · ARTICLE · en

We develop large area superconducting single-photon detector SSPD with a micron- wide strip suitable for free-space coupling or packaging with multi-mode optical fibres. The detector sensitive area is 20 ?m in diameter. In near infrared (1330 nm wavelength) our SSPD exhibits above 30% detection efficiency with low dark counts and 45 ps timing jitter.

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CMOS compatible nanoantenna-nanodiamond integration

2019 · ARTICLE · en

Here we demonstrate CMOS compatible method to deterministically produce nanoantenna with nanodiamonds systems on the example of a bull-eye antenna on top of on hyperbolic metamaterials. We study the statistics of the placement of nanodiamonds and measure the fluorescence lifetime and the second-order correlation function of NV-centers inside nanodiamonds.

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Precise measurement of the thermal conductivity of superconductor

2018 · ARTICLE · en

Measuring the thermal properties such as the heat capacity provide information about intrinsic mechanisms operated inside. In general, the ratio between electron and phonon specific heat Ce/Cp shows how the absorbed energy shared between electron and phonon subsystems. In this work we make estimations for amplitude-modulated absorption of THz radiation technique for investigation of the ratio Ce/Cp in superconducting Niobium Nitride (NbN) at T = Tc . Our results indicates that experimentally the frequency of modulation has to be extra large to extract the quantity. We perform a new technique allowed to work at low frequency with accurately measurement of absorbed power.

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Optical single-photon detection in micrometer-scale NbN bridges

2018 · ARTICLE · en

We demonstrate experimentally that single photon detection can be achieved in micron-wide NbN bridges, with widths ranging from 0.53\,μm to 5.15\,μm and for photon-wavelengths from 408\,nm to 1550\,nm. The microbridges are biased with a dc current close to the experimental critical current, which is estimated to be about 50\the theoretically expected depairing current. These results offer an alternative to the standard superconducting single-photon detectors (SSPDs), based on nanometer scale nanowires implemented in a long meandering structure. The results are consistent with improved theoretical modeling based on the theory of non-equilibrium superconductivity including the vortex-assisted mechanism of initial dissipation.

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Nonbolometric bottleneck in electron-phonon relaxation in ultrathin WSi films

2018 в печати · ARTICLE · en

We developed the model of the internal phonon bottleneck to describe the energy exchange between the acoustically soft ultrathin metal film and acoustically rigid substrate. Discriminating phonons in the film into two groups, escaping and nonescaping, we show that electrons and nonescaping phonons may form a unified subsystem, which is cooled down only due to interactions with escaping phonons, either due to direct phonon conversion or indirect sequential interaction with an electronic system. Using an amplitude-modulated absorption of the sub-THz radiation technique,we studied electron-phonon relaxation in ultrathin disordered films of tungsten silicide.We found an experimental proof of the internal phonon bottleneck. The experiment and simulation based on the proposed model agree well, resulting in τe−ph ∼ 140–190 ps at TC = 3.4K, supporting the results of earlier measurements by independent techniques.

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Photon Switching Statistics in Multistrip Superconducting Single-Photon Detectors

2018 в печати · ARTICLE · en

We study photon count statistics in superconducting single-photon detectors (SSPD) consisting of up to 70 narrow superconducting strips connected in parallel. Using inter-arrival time analysis we demonstrate that our samples are operated in ‘arm-trigger’ regime and require up to 7 subsequently absorbed photons to form a resistive state in the whole sample. We also performed numerical simulation of the light and dark count rates vs detector bias current which are in good agreement with the experimental results.

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Photon counting statistics of superconducting single-photon detectors made of a three-layer WSi film

2018 · ARTICLE · en

Superconducting nanowire single-photon detectors (SNSPD) are used in quantum optics when record-breaking time resolution, high speed, and exceptionally low levels of dark counts (false readings) are required. Their detection efficiency is limited, however, by the absorption coefficient of the ultrathin superconducting film for the detected radiation. One possible way of increasing the detector absorption without limiting its broadband response is to make a detector in the form of sev- eral vertically stacked layers and connect them in parallel. For the first time we have studied single- photon detection in a multilayer structure consisting of three superconducting layers of amorphous tungsten silicide (WSi) separated by thin layers of amorphous silicon. Two operating modes of the detector are illustrated: an avalanche regime and an arm-trigger regime. A shift in these modes occurs at currents of ?0.5–0.6 times the critical current of the detector. Published

DOI ↗ PDF ↗

Курсы (5)