Pavel V. Zinin
YOU?
Author Swipe
View article: Modified spectral ratio method for distant measurement of temperature distribution by multispectral video cameras
Modified spectral ratio method for distant measurement of temperature distribution by multispectral video cameras Open
This paper describes a new method for remote measurements of the temperature distribution without knowledge of the emissivity using multispectral cameras. It is shown that the application of the spectral coupling method in tandem with a mu…
View article: RGB color camera for dynamical measurements of high temperature distribution on a surface of the heated solid
RGB color camera for dynamical measurements of high temperature distribution on a surface of the heated solid Open
In this report we describe a fast 3-color method of the measurement of temperature distributions on a surface of a heated solid using a RGB color camera with a high frame rate (100 images per second). Statistical error the RGB method is no…
View article: Development of a high frequency ultrasonic setup for measuring the parameters of thin films
Development of a high frequency ultrasonic setup for measuring the parameters of thin films Open
In this report a novel method for measuring the elastic properties of thin 10 nm films is described. The method is based on the use of a nanosecond laser for generation acoustic waves in solids. Absorption of the incident laser pulse energ…
View article: Enhancement of the Anti-Stokes Fluorescence of Hollow Spherical Carbon Nitride Nanostructures by High Intensity Green Laser
Enhancement of the Anti-Stokes Fluorescence of Hollow Spherical Carbon Nitride Nanostructures by High Intensity Green Laser Open
Fluorescence spectra of graphitic (g-C3N4) and spherical (s-C3N4) modifications of carbon nitride were measured as a function of green pulsed (6 ns-pulse) laser intensity. It was found that the intensity of the laser increases the maximum …
View article: Remote measurement of the temperature distribution on the surface of solids under high-power laser irradiation
Remote measurement of the temperature distribution on the surface of solids under high-power laser irradiation Open
Дистанционное измерение распределения температуры на поверхности твёрдых тел при воздействии мощного лазерного излучения в ячейках высокого давления, Зинин П.В., Булатов К.М., Быков А.А., Мантрова Ю.В., Кутуза И.Б.
View article: The Effect of Shear Deformation on C-N Structure under Pressure up to 80 GPa
The Effect of Shear Deformation on C-N Structure under Pressure up to 80 GPa Open
We studythe effect of shear deformation on graphitic g-C3N4 under pressures of up to 80 GPa at room temperature. g-C3N4 samples are transformed from initial amorphous flakes into onion-like structures, in which the nitrogen content in the …
View article: Modeling the beam profile of an infrared laser to create optical tweezers in high pressure cells
Modeling the beam profile of an infrared laser to create optical tweezers in high pressure cells Open
In this paper, a modeling of a laser optical system for heating samples in a high-pressure cell was performed, in which the laser heating system and the optical system for measuring the temperature distribution are separated. It is shown t…
View article: Raman spectroscopy for studying the synthesis of conducting BC<sub>3</sub> hetero-diamonds in diamond anvil cell under high temperature
Raman spectroscopy for studying the synthesis of conducting BC<sub>3</sub> hetero-diamonds in diamond anvil cell under high temperature Open
A direct transformation of the sintered BC 3 phase to a novel diamond-like d -BC 3 phase was observed in a diamond anvil cell (DAC) at high temperature, 2500 K and high pressure, 22 GPa. For heating a specimen in a DAC a laser heating (LH)…
View article: Determination of the effective emissivity distribution of a heated specimen using tandem acousto-optical tunable filter
Determination of the effective emissivity distribution of a heated specimen using tandem acousto-optical tunable filter Open
We present the first experimental demonstration of a new imaging system for in-situ measurement the two-dimensional distribution of the effective emissivity and temperature of a heated specimen. In this work, we use the model of a gray bod…
View article: Получение флуоресцентных композитных материалов на основе графитоподобного нитрида углерода
Получение флуоресцентных композитных материалов на основе графитоподобного нитрида углерода Open
Highly fluorescent composite powder based on graphite-like carbon nitride (g-C3N4) was obtained by thermal decomposition of melamine in the presence of nanoparticles of aluminum oxide, titanium oxide and silicon oxide. The fluorescence pro…
View article: Compensation of spectral image shift in AOTF-based system
Compensation of spectral image shift in AOTF-based system Open
Recently, it was shown that the use of a tandem acousto-optic tuneable filter (TAOTF) in combination with a camera allows one to measure the temperature distribution at the focus of a laser beam on an object’s surface. The TAOTF advantage …
View article: Analysis of the statistical errors of the emissivity measurement of a laser heated surface by acousto-optical tunable filter
Analysis of the statistical errors of the emissivity measurement of a laser heated surface by acousto-optical tunable filter Open
The aim of this report is to conduct a rigorous data analysis of the emissivity and temperature measurements on the surface of a solid specimen during laser heating (LH). Measurements of the emissivity and temperature is based on the use o…
View article: Effect of the nanoparticle composition on the fluorescence of carbon nitride coatings
Effect of the nanoparticle composition on the fluorescence of carbon nitride coatings Open
In this report we present results on synthesis of graphitic carbon nitride (g-C 3 N 4 ) coating on various nanoparticles. Carbon nitride coatings were grown on of SiO 2 , TiO 2 , and Fe 2 O 3 nanoparticles by the decomposition of the melam…
View article: Influence of nanosecond laser irradiation on the structure and conductivity of BC<sub>x</sub> films
Influence of nanosecond laser irradiation on the structure and conductivity of BC<sub>x</sub> films Open
Thin-film precursors of BC x were formed by pulsed laser codeposition of boron and carbon. Targets made of pressed boron and carbon powders with an equal element content (B/C = 1/1) and an increased carbon content (B/C = 1/3) were used. Th…
View article: High-Frequency Time-Resolved Scanning Acoustic Microscopy for Biomedical Applications
High-Frequency Time-Resolved Scanning Acoustic Microscopy for Biomedical Applications Open
High-frequency focused ultrasound has emerged as a powerful modality for both biomedical imaging and elastography. It is gaining more attention due to its capability to outperform many other imaging modalities at a submicron resolution. Be…
View article: Synthesis of Star-Shaped Boron Carbide Micro-Crystallites under High Pressure and High Temperatures
Synthesis of Star-Shaped Boron Carbide Micro-Crystallites under High Pressure and High Temperatures Open
We synthesized star-shaped pentagonal microcrystals of boron carbide with an extremely low carbon content (~5%), from m-carborane under high pressure (7 GPa) and high temperature (1370–1670 K). These crystals have five-fold symmetry and gr…
View article: Near-Field Defects Imaging in Thin DLC Coatings Using High-Frequency Scanning Acoustic Microscopy
Near-Field Defects Imaging in Thin DLC Coatings Using High-Frequency Scanning Acoustic Microscopy Open
A high-frequency scanning acoustic microscope (SAM) operating at 1–1.3 GHz was used to investigate subsurface defects in diamond-like carbon (DLC) films that were 2–3 μm thick. Because the wavelength of the longitudinal wave in the film wa…
View article: Combined laser heating and tandem acousto-optical filter for two-dimensional temperature distribution on the surface of the heated microobject
Combined laser heating and tandem acousto-optical filter for two-dimensional temperature distribution on the surface of the heated microobject Open
Recently it has been shown that it is possible to measure the two-dimensional distribution of the surface temperature of microscopic specimens. The main component of the system is a tandem imaging acousto-optical tunable filter synchronize…
View article: Влияние бора на структуру и проводимость тонких пленок, получаемых лазерной абляцией алмаза при 700-=SUP=-o-=/SUP=-C
Влияние бора на структуру и проводимость тонких пленок, получаемых лазерной абляцией алмаза при 700-=SUP=-o-=/SUP=-C Open
Structural features of CB_ x films obtained by pulsed laser ablation of targets made of pressed diamond powder with boron-powder additions at B/C atomic ratio of x = 0.33 have been studied. The films were deposited on heated substrates, so…
View article: Combined laser ultrasonics, and Raman scattering in diamond anvil cell system operating in the transmission configuration
Combined laser ultrasonics, and Raman scattering in diamond anvil cell system operating in the transmission configuration Open
International audience
View article: Bonding, elastic and vibrational properties in low and high pressure synthesized diamond-like BCx phases
Bonding, elastic and vibrational properties in low and high pressure synthesized diamond-like BCx phases Open
Recent studies demonstrate that low pressure chemical vapor deposition at 950 K leads to the synthesis of diamond-like boron carbides with high concentrations of boron (0.66 < x < 4) in which the sp2 fraction depends on the boron concentra…
View article: Multi-spectral image processing for the measurement of a spatial temperature distribution on the surface of a laser-heated microscopic object
Multi-spectral image processing for the measurement of a spatial temperature distribution on the surface of a laser-heated microscopic object Open
In this paper, we demonstrate that combining a laser heating (LH) system with a tandem acousto-optical tunable filter (TAOTF) allows us to measure the temperature distribution (TD) across a laser-heated microscopic specimen. Spectral image…
View article: Combined laser ultrasonics, laser heating, and Raman scattering in diamond anvil cell system
Combined laser ultrasonics, laser heating, and Raman scattering in diamond anvil cell system Open
We developed a multi-functional in situ measurement system under high pressure equipped with a laser ultrasonics (LU) system, Raman device, and laser heating system (LU-LH) in a diamond anvil cell (DAC). The system consists of four compone…