Evgenii Makarov

Evgenii Makarov
ITMO University | SPbNRU ITMO · Department of Photonics and Optical Information Technology

About

11
Publications
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76
Citations

Publications

Publications (11)
Article
Full-text available
In this paper we present results of experimental study of two-photon absorption (2PA) induced in electro-optical crystals ZnTe and ZnSe by intensive optical radiation in 450? 950 nm wavelength range. These crystals are of interest due to common usage in THz systems. Femtosecond pump-probe spectroscopy with the supercontinuum source helps to induce...
Article
This paper describes a laser system that provides dual-pulse bispectral excitation of a laser plasma in an extreme- UV source for nanolithography in this spectral region. The radiation converter is based on a low-power YAG:Nd laser and a powerful CO2 laser. A saturating signal is injected into the power stage of a CO2 amplifier by subnanosecond pul...
Article
Full-text available
In this paper, we demonstrate experimentally for the first time (to our knowledge) the generation of spectral supercontinuum (SC) of more than two octaves with high intensity in a water jet. The spectrum of the generated SC extends from 350 to 1400 nm, with intensities up to 10¹¹ W/cm², and its generation efficiency is more than 50%. For the pump i...
Article
Theoretical analysis of the spatial, noise, and energy characteristics of an amplifier has been performed in the mode of spectral and time selection using subnanosecond stimulated Raman Scattering gain of weak echo signals in crystalline active media that are known for high (up to 10–1 cm/MW) gain coefficients. The possibility to reach high gain va...
Article
We developed a Raman lidar with ultraspectral resolution for automatic airborne monitoring of pipeline leaks and for oil and gas exploration. Experiments were carried out under the CARS circuit. Minimal concentrations of 200 ppb of heavy hydrocarbon gas have been remotely measured in laboratory tests. Test flights indicate that a sensitivity of 6 p...
Conference Paper
We developed a Raman lidar with ultraspectral resolution for automatic airborne monitoring of pipeline leaks and for oil and gas exploration. Test flights indicate that a sensitivity of 6 ppm for methane and 2 ppm for hydrogen sulfide has been reached for leakage detection. The lidar is based on the CARS method with a Ti:Sapphire pump laser and a f...
Conference Paper
The structural scheme of underwater laser spectroscopic system for hydrocarbon deposits exploration was considered. This equipment can be used to scan from the ship in aqueous environments with limited visibility, and spectral-temporal analysis of the Raman scattering of the hydrocarbons in these environments.
Conference Paper
The migration of oil and gas and other molecules such as H2S, CO, CO2, H2, He leads to a change in the physical properties of the rocks above the deposit and the formation of halos of methane, propane, and other hydrocarbons in the surface sediments and the atmospheric boundary layer with anomalous concentrations of hydrocarbon gases. We have devel...
Conference Paper
We developed a Raman lidar with ultraspectral resolution for automatic airborne monitoring of pipeline leaks and for oil and gas exploration. Test flights indicate that a sensitivity of 6 ppm for methane and 2 ppm for hydrogen sulfide has been reached for leakage detection.

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Projects

Projects (2)
Project
The main goal of the project is the creation and expansion of quantum models of quantum optics elements in and their application in the basic protocols of quantum communications and quantum informatics, including for the analysis of the information resources of the quantum states they form, analysis of the quantum dynamics of multimode photonic systems as a result of their interaction with various elements, as well as their experimental confirmation.