Гольцман Григорий Наумович
Московский институт электроники и математики им. А.Н. Тихонова
Профессиональные интересы
Должности
- Заведующий кафедрой — Московский институт электроники и математики им. А.Н. Тихонова, Базовая кафедра квантовой оптики и телекоммуникаций ЗАО «Сконтел»
- Профессор — Московский институт электроники и математики им. А.Н. Тихонова, Базовая кафедра квантовой оптики и телекоммуникаций ЗАО «Сконтел»
Био
- · Начал работать в НИУ ВШЭ в 2013 году.
- · Научно-педагогический стаж: 55 лет.
Образование
- 1988 · Ученое звание: Профессор
- 1985 · Доктор физико-математических наук
- 1968 · Специалитет: Московский государственный педагогический институт им. В.И. Ленина, специальность «Физика», квалификация «Учитель физики и звание учителя средней школы»
Опыт работы
- · Общий стаж - 54 года
- · Научно-педагогический стаж - 51 год
- · Преподавательский стаж - 44 года
Награды и поощрения
- · Медаль "В память 850-летия Москвы" (февраль 1997)
- · Надбавка за публикацию в журнале из Списка А (и приравненном к нему научном издании) (2025–2026, 2024–2025)
- · Надбавка за публикацию в международном рецензируемом научном издании (2022–2023, 2021–2022, 2020–2022, 2018–2020)
- · Надбавка за статью в зарубежном рецензируемом журнале (2014–2016)
- · Надбавка за статью в зарубежном рецензируемом научном издании (2016–2018)
- · Лучший преподаватель — 2014
Гранты и проекты
- — · на соискание учёной степени кандидата наук
Конференции (2)
Показать все
- · 2022: Школа-конференция с международным участием по оптоэлектронике, фотонике и нанобиоструктурам Saint Petersburg OPEN (Санкт-Петербург). Доклад: A mmWave Rod Antenna Array Compatible with a PCB Prototyping Technology
- · 2022: Школа-конференция с международным участием по оптоэлектронике, фотонике и нанобиоструктурам Saint Petersburg OPEN (Санкт-Петербург). Доклад: Thermo-optical effect in a Mach-Zehnder interferometer on a silicon nitride platform for quantum photonic applications
Идентификаторы исследователя
- ORCID:
0000-0002-1960-9161 - ResearcherID:
A-4189-2014 - SPIN РИНЦ:
4622-7870 - Google Scholar: https://scholar.google.ru/citations?user=qljeUfEAAAAJ&hl=ru
- Scopus AuthorID:
7006771637
Публикации (253)
Carbon Nanotube Based Schottky Diodes as Uncooled Terahertz Radiation Detectors
2018 в печати · ARTICLE · en
Despite the intensive development of the terahertz technologies in the last decade, there is still a shortage of efficient room-temperature radiation detectors. Carbon nanotubes (CNTs) are considered as a very promising material possessing many of the features peculiar for graphene (suppression of backscattering, high mobility, etc.) combined with a bandgap in the carrier spectrum. In this paper, we investigate the possibility to incorporate individual CNTs into devices that are similar to Schottky diodes. The latter is currently used to detect radiation with a frequency up to 50 GHz. We report results obtained with semiconducting (bandgap of about 0.5 eV) and quasi-metallic (bandgap of few meV) single-walled carbon nanotubes (SWNTs). Semiconducting CNTs show better performance up to 300 GHz with responsivity up to 100 V W−1, while quasi-metallic CNTs are shown to operate up to 2.5 THz.
Статистика фотоотсчетов сверхпроводникового однофотонного детектора из трехслойной пленки WSi
2018 · ARTICLE · ru
Сверхпроводниковые однофотонные детекторы (SNSPD) успешно применяются в квантовой оптике, когда требуется рекордное временное разрешение, высокое быстродействие и рекордно низкий уровень темнового счёта (ложных срабатываний). Однако эффективность детектирования SNSPD ограничена коэффициентом поглощения излучения ультратонкой пленкой сверхпроводника. Один из перспективных способов увеличить поглощение в детекторе не ограничивая его широкополосности – изготовить детектор в виде нескольких слоев, расположенных друг над другом, и соединив их параллельно. Мы впервые исследовали однофотонное детектирование в многослойной структуре, состоящей из трех сверхпроводящих слоев аморфного силицида вольфрама (WSi), разделенных тонкими слоями аморфного кремния. Мы продемонстрировали два режима работы детектора: режим лавины (avalanche regime) и триггерный (arm-trigger regime) режим, а также определили, что смена режимов происходит в интервале токов ~0,5 – 0,6 от критического тока детектора.
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.
Разработка оптических линий задержки на чипе для работы в телекоммуникационном диапазоне длин волн
2018 · CHAPTER · ru
В работе проведена разработка оптических линий задержки при помощи пакета gdsCAD для Python. В частности, произведен расчет дизайна оптических линий задерж- ки и разработан технологический маршрут их изготовления на чипе из нитрида кремния.
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.
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.
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.
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
Sensitivity and Resolution of a Heterodyne Receiver Based on the NbN HEB Mixer with a Quantum-Cascade Laser as a Local Oscillator
2018 в печати · ARTICLE · en
We present the results of experimental studies of the basic characteristics and operation features of a terahertz heterodyne detector based on the superconducting NbN HEB mixer and a quantum cascade laser as a local oscillator operating at a frequency of 2.02 THz. The measured noise temperature of such a mixer amounted to 1500 K. The spectral resolution of the detector is determined by the width of the local-oscillator spectral line whose measured value does not exceed 1 MHz. The quantum-cascade laser could be linearly tuned with respect to frequency with the coefficient 7.2 MHz/mA within the limits of the current oscillation bandwidth.
Manifestation of plasmonic response in the detection of sub-terahertz radiation by graphene-based devices
2018 в печати · ARTICLE · en
We report on the sub-terahertz (THz) (129–450GHz) photoresponse of devices based on single layer graphene and graphene nanoribbons with asymmetric source and drain (vanadium and gold) contacts. Vanadium forms a barrier at the graphene interface, while gold forms an Ohmic contact. We find that at low temperatures (77K) the detector responsivity rises with the increasing frequency of the incident sub-THz radiation. We interpret this result as a manifestation of a plasmonic effect in the devices with the relatively long plasmonic wavelengths. Graphene nanoribbon devices display a similar pattern, albeit with a lower responsivity.
Курсы (3)
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Технологические основы квантовых вычислений и квантовых коммуникаций (семинар наставника) · 5 раза
2025/2026, 2024/2025, 2023/2024, 2022/2023, 2021/2022 · семинар наставника · рус
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Устройства для квантовых вычислений и коммуникации · 3 раза
2025/2026, 2023/2024, 2022/2023 · Бакалавриат · рус
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Квантовые компьютеры и квантовые коммуникации
2021/2022 · Магистратура · рус