Персона: Губский, Константин Леонидович
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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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- ПубликацияОткрытый доступСИСТЕМА ЛАЗЕРНОЙ ОЧИСТКИ ПОВЕРХНОСТИ ЗЕРКАЛ ОПТИЧЕСКИХ ДИАГНОСТИК НА ИТЭР(НИЯУ МИФИ, 2015) Савченков, А. В.; Губский, К. Л.; Кузнецов, А. П.; Никитина, Е. И.; Тугаринов, С. Н.; Бужинский, О. И.; Кузнецов, Андрей Петрович; Губский, Константин ЛеонидовичThe development of cleaning optics and deposition-mitigating techniques is a key factor in the construction and operation of optical diagnostics in ITER. It has been shown that high initial reflection characteristics of optical elements can be recovered by choosing regimes of fiber laser radiation effect on the deposited surface. Experiments on transport of fiber laser radiation to the metal mirror by using system of lens and cleaning showed the possibility of a hardware implementation of methods applicable in the geometry of port-plug ITER.
- ПубликацияТолько метаданные3D push–pull heterodyne interferometer for SPM metrology(2019) Kazieva, T. V.; Gubskiy, K. L.; Kuznetsov, A. P.; Reshetov, V. N.; Казиева, Татьяна Вадимовна; Губский, Константин Леонидович; Кузнецов, Андрей Петрович; Решетов, Владимир Николаевич© 2019 Optical Society of America.A three-coordinate heterodyne laser interferometer has been developed to measure the displacement of the probe microscope scanner with a subnanometer resolution that provides traceability of measurements to the standard of meter through the wavelength of a stabilized He–Ne laser. Main sources of errors are investigated, and their influence is minimized so that the resulting measurement uncertainty of the system does not exceed 0.2 nm, and the resolution is 0.01 nm. The investigation of metrological characteristics of the three-coordinate interferometer was carried out with a scanning probe microscopy (SPM) NanoScan-3D using TGZ-type calibration gratings. The values measured with SPM fell within the 95% confidence interval given by Physikalisch-Technische Bundesanstalt (PTB) (Germany). SPM equipped with a laser interferometer was used to measure the characteristics of dynamic etalons of geometric dimensions.
- ПубликацияТолько метаданныеUse of Direct Optical Heterodyning for Measuring Hardness by the Leeb Method(2019) Kazieva, T. V.; Gubskii, K. L.; Kuznetsov, A. P.; Glukhov, R. D.; Казиева, Татьяна Вадимовна; Губский, Константин Леонидович; Кузнецов, Андрей Петрович© 2019, Pleiades Publishing, Ltd.Abstract: In this paper, we describe a portable system for measuring the indenter velocity in hardness meters implemented according to the Leeb method. The developed system is a fiber interferometer, in which a radiation source is a semiconductor laser with a wavelength of 1550 nm. The presented experimental results confirm the ability of the system to measure indenter velocities with an uncertainty of 0.001 m/s, which satisfies the requirements of the standards for this method of measuring hardness.
- ПубликацияОткрытый доступЛазерная анемометрия в исследованиях ударно-волновых процессов и экстремального состояния вещества(НИЯУ МИФИ, 2012) Губский, К. Л.; Губский, Константин Леонидович; Кузнецов, А. П.
- ПубликацияОткрытый доступAnalysis of Influence of Seismic Oscillations on Precision Laser Plants' Work(2019) Reshetova, M.; Reshetov, V.; Gubskiy, K.; Sorokin, S.; Губский, Константин Леонидович© Published under licence by IOP Publishing Ltd.The seismic situation in a number of rooms of the NRNU MEPhI, including the Laboratory Building, where the construction of the multifunctional laser complex ELF is planned, is studied. Estimations of seismic and vibrational noise at the main and isolated parts of the basement of the room that hosts the laser complex are obtained.
- ПубликацияОткрытый доступDiagnostic system for shock processes investigation in matter under the influence of intense laser pulses(2019) Alekseev, V. V.; Derkach, V. N.; Mikhaylyuk, A. V.; Gubskiy, K. L.; Pikalova, M. A.; Kuznetsov, A. P.; Михайлюк, Андрей Владимирович; Губский, Константин Леонидович; Кузнецов, Андрей Петрович© 2019 Published under licence by IOP Publishing Ltd. The paper presents the diagnostic system for velocity measurements of reflecting objects in high energy physics experiments. The principle of continuous velocity measurements based on the Doppler frequency shift analysis of a probe monochromatic wave reflected by the moving surface of the sample. System is designed to measure velocity in the interval of 5-50 km/s. Powerful laser pulses expose the target and generate shock waves inside it. The back side of target is illuminated by probe laser beam at a wavelength of 660 nm. Scattered probe light collected by a lens and injected into the optical system. Two Mach-Zehnder interferometers with different reference delay etalons form a vernier measuring system. A passive channel records luminescence in the shock wave front. Spatial resolution of the optical layout is about 3 μm.
- ПубликацияОткрытый доступTwo-channel interferometer system of direct optical heterodining for destruction by shock waves processes studying(2019) Gorbashova, M. A.; Gubskiy, K. L.; Glukhov, R. G.; Dyagileva, D. V.; Kuznetsov, A. P.; Губский, Константин Леонидович; Кузнецов, Андрей Петрович© Published under licence by IOP Publishing Ltd.The article describes a multichannel modular system for velocity measuremens in shock physics. The two-channel time compression system is based on PDV method. It was tested in lead dusting experiments.
- ПубликацияОткрытый доступMultichannel laser radiation collection and transport system for particle velocity measurements in shock wave experiments(2019) Tishenko, I. Y.; Gubskiy, K. L.; Pirog, V. A.; Kazieva, T. V.; Lukyanov, K. S.; Morozov, A. A.; Kuznetsov, A. P.; Тищенко, Илья Юрьевич; Губский, Константин Леонидович; Пирог, Владимир Андреевич; Казиева, Татьяна Вадимовна; Лукьянов, Константин Сергеевич; Кузнецов, Андрей Петрович© Published under licence by IOP Publishing Ltd.VISAR type measuring laser systems are used for the determination of surface velocities in high-speed processes. Their operational characteristics mostly depends on the efficiency of collection of scattered radiation. In this paper we present results of the comparative analysis of several radiation collection schemes along with experimentally obtained data on the scheme parameters effect on collection efficiency and recording length.