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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)

Single-pixel camera with a large-area microstrip superconducting single photon detector on a multimode fiber

2021 · ARTICLE · en

High sensitivity imaging at the level of single photons is an invaluable tool in many areas, ranging from microscopy to astronomy. However, development of single-photon sensitive detectors with high spatial resolution is very non-trivial. Here we employ the singlepixel imaging approach and demonstrate a proof-of-principle single-pixel single-photon imaging setup. We overcome the problem of low light gathering efficiency by developing a large-area microstrip superconducting single photon detector coupled to a multi-mode optical fiber interface. We show that the setup operates well in the visible and near infrared spectrum, and is able to capture images at the singlephoton level.

DOI ↗ PDF ↗

Influence of sheet resistance and strip width on the detection efficiency saturation in micron-wide superconducting strips and large-area meanders

2021 в печати · ARTICLE · en

We report our study of detection efficiency (DE) saturation in wavelength range 400 - 1550 nm for the NbN Superconducting Microstrip Single-Photon Detectors (SMSPD) featuring the strip width up to 3 μm. We observe an expected decrease of the $DE$ saturation plateau with the increase of photon wavelength and decrease of film sheet resistance. At 1.7 K temperature DE saturation can be clearly observed at 1550 nm wavelength in strip with the width up to 2 μm when sheet resistance of the film is above 630Ω/sq. In such strips the length of the saturation plateau almost does not depend on the strip width. We used these films to make meander-shaped detectors with the light sensitive area from 20×20μm2 to a circle 50 μm in diameter. In the latter case, the detector with the strip width of 0.49 μm demonstrates saturation of DE up to 1064 nm wavelength. Although DE at 1310 and 1550 nm is not saturated, it is as high as 60%. The response time is limited by the kinetic inductance and equals to 20 ns(by 1/e decay), timing jitter is 44 ps. When coupled to multi-mode fibre large-area meanders demonstrate significantly higher dark count rate which we attribute to thermal background photons, thus advanced filtering technique would be required for practical applications.

DOI ↗ PDF ↗

Influence of sheet resistance and strip width on the detection efficiency saturation in micron-wide superconducting strips and large-area meanders

2021 · ARTICLE · en

We report our study of detection efficiency (DE) saturation in wavelength range 400–1550 nm for the NbN superconducting microstrip single-photon detectors (SMSPDs) featuring the strip width up to 3 µm. We observe an expected decrease of the DE saturation plateau with the increase of photon wavelength and decrease of film sheet resistance. At 1.7 K temperature DE saturation can be clearly observed at 1550 nm wavelength in strip with the width up to 2 µm when sheet resistance of the film is above 630 Ω sq−1. In such strips the length of the saturation plateau almost does not depend on the strip width. We used these films to make meander-shaped detectors with the light sensitive area from 20 × 20 µm2 to a circle 50 µm in diameter. In the latter case, the detector with the strip width of 0.49 µm demonstrates saturation of DE up to 1064 nm wavelength. Although DE at 1310 and 1550 nm is not saturated, it is as high as 60%. The response time is limited by the kinetic inductance and equals to 20 ns (by 1/e decay), timing jitter is 44 ps. When coupled to multi-mode fibre large-area meanders demonstrate significantly higher dark count rate which we attribute to thermal background photons, thus advanced filtering technique would be required for practical applications.

DOI ↗

Calculation of libration point orbits in the circular restricted three-body problem

2021 · ARTICLE · en

This study investigates possibilities for extension and improvement of algorithms for generation of libration point orbits in the framework of the circular restricted three body problem. Two algorithms for orbit generation based on bisection approach using different ways for evaluation of unstable component of motion are considered. The spacecraft's state vector is periodically adjusted in such a way that unstable component of motion is neutralized and the trajectory corresponding to the corrected state vector belongs to the central manifold associated with libration point. The first algorithm uses expression for unstable component derived from linearized equations of motion. The second one is based on the procedure of reduction to central manifold, utilizing canonical coordinate transformations to nullify high order monomials in the expansion of Hamiltonian of the system in terms of Legendre polynomials. This allows expressing unstable component as one of generalized coordinates of Hamiltonian system obtained as the result of aforementioned transformation. Evaluation of these techniques proved their applicability for orbit generation. However, the second approach allows generating orbits in greater vicinity of libration point.

DOI ↗ PDF ↗

Determination of measurement fidelity for a superconducting photon-number resolving detector with micron-wide strips

2021 · ARTICLE · en

We report a study of multiphoton detection fidelity (or accuracy) for sequential photon-number resolving detectors based on micron-wide superconducting strips. It was found that an increase in the width of the superconducting strips by a factor of 5 leads to an improvement in the measurement accuracy by more than a factor of 10.

DOI ↗ PDF ↗

Сверхпроводящие микроструктуры с высоким импедансом

2020 · ARTICLE · ru

При сверхнизких температурах были исследованы транспортные свойства двух типов квазиодномерных сверхпроводящих микроструктур: тонкие каналы, плотно упакованные в форме меандра, и цепочки тун- нельных контактов сверхпроводник-изолятор-сверхпроводник. Оба типа микроструктур продемонстрировали высокое значение высокочастотного импеданса и/или динамического сопротивления. Исследование откры- вает возможность использовать такие структуры в качестве стабилизирующих ток балластных элементов с нулевой величиной диссипации.

DOI ↗ PDF ↗

Superconducting Microstructures with High Impedance

2020 · ARTICLE · en

The transport properties of two types of quasi-one-dimensional superconducting microstructures were investigated at ultra-low temperatures: the narrow channels close-packed in the shape of meander, and the chains of tunneling contacts "superconductor-insulator-superconductor." Both types of the microstructures demonstrated high value of high-frequency impedance and-or the dynamic resistance. The study opens up potential for using of such structures as current stabilizing elements with zero dissipation.

DOI ↗ PDF ↗

Timing Jitter in NbN Superconducting Microstrip Single-Photon Detector

2020 · ARTICLE · en

We experimentally study timing jitter of single-photon detection by NbN superconducting strips with width w ranging from 190 nm to 3 μm. We find that timing jitter of both narrow (190 nm) and micron- wide strips is about 40 ps at currents where internal detection efficiency η saturates and it is close to our instrumental jitter. We also calculate intrinsic timing jitter in wide strips using the modified time- dependent Ginzburg-Landau equation coupled with a two-temperature model.We find that with increasing width the intrinsic timing jitter increases and the effect is most considerable at currents where a rapid growth of η changes to saturation. We relate it with complicated vortex and antivortex dynamics, which depends on a photon’s absorption site across the strip and its width. The model also predicts that at current close to depairing current the intrinsic timing jitter of a wide strip could be about ?/kBTc (Tc is a critical temperature of superconductor), i.e., the same as for a narrow strip.

DOI ↗ PDF ↗

Different Single-Photon Response of Wide and Narrow Superconducting Mo$_x$ Si$_{1−x}$ Strips

2020 · ARTICLE · en

The photon count rate (PCR) ofsuperconducting single-photon detectors made ofMoxSi1-x films shaped as a 2-μm-wide strip and a 115-nm-wide meander strip line is studied experimentally as a function of the dc biasing current at different values of the perpendicular magnetic field. For the wide strip, a crossover current Icross is observed, below which the PCR increases with an increasing magnetic field and above which it decreases. This behavior contrasts with the narrow MoxSi1-x meander, for which no crossover current is observed, thus suggesting different photon-detection mechanisms in the wide and narrow strips. Namely, we argue that in the wide strip the absorbed photon destroys superconductivity locally via the vortex-antivortex mechanism for the emergence of resistance, while in the narrow meander superconductivity is destroyed across the whole strip line, forming a hot belt. Accordingly, the different photon-detection mechanisms associated with vortices and the hot belt determine the qualitative difference in the dependence of the PCR on the magnetic field

DOI ↗ PDF ↗

Modelling of normal domain evolution after single-photon absorption of a superconducting strip of micron width

2020 · ARTICLE · en

The present paper describes a modelling of normal domain evolution in superconducting strip of micron width using solving differential equations describing the temperature and current changes. The solving results are compared with experimental data. This comparison demonstrates the high accuracy of the model. In future, it is possible to employ this model for improvement of single photon detector based on micron-scale superconducting strips.

DOI ↗ PDF ↗

Курсы (5)