Search Results - "Ivanov, N.G."

Modeling analysis of unsteady three-dimensional turbulent melt flow during Czochralski growth of Si crystals by Evstratov, I.Yu, Kalaev, V.V., Zhmakin, A.I., Makarov, Yu.N., Abramov, A.G., Ivanov, N.G., Smirnov, E.M., Dornberger, E., Virbulis, J., Tomzig, E., von Ammon, W.

“…We describe a computational model based on Large Eddy Simulation to calculate 3D unsteady turbulent melt convection in Czochralski systems for Si-crystal…”
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A Development of Shunt Reactor Controlled Energizing Theory by Aleksandrova, M.I., Naumov, V.A., Antonov, V.I., Ivanov, N.G.

“…The uncontrolled energizing of shunt reactors is accompanied by appearance of a significant DC-component in current, leading to saturation of power and…”
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Numerical study of 3D unsteady melt convection during industrial-scale CZ Si-crystal growth by Evstratov, I.Yu, Kalaev, V.V., Zhmakin, A.I., Makarov, Yu.N., Abramov, A.G., Ivanov, N.G., Korsakov, A.B., Smirnov, E.M., Dornberger, E., Virbulis, J., Tomzig, E., von Ammon, W.

“…We present a computational model of 3D turbulent melt convection in Czochralski Si-crystal growth systems, based on the hybridization of Reynolds-averaged…”
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Temporal behavior of air lasing by molecular nitrogen ions by Ivanov, N.G., Zyatikov, I.A., Losev, V.F., Prokop’ev, V.E.

“…The experimental results of studying the temporal and spectral characteristics of air lasing of a first negative system of molecular nitrogen ions in laser…”
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High time-resolved spectroscopy of filament plasma in air by Ivanov, N.G., Losev, V.F., Prokop’ev, V.E., Sitnik, K.A., Zyatikov, I.A.

“…The results of spectral–temporal studies of the filament plasma emission in air with a time resolution of 2 ps were presented. The filament was created by…”
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Generation of a highly directional supercontinuum in the visible spectrum range by Ivanov, N.G., Losev, V.F., Prokop’ev, V.E., Sitnik, K.A.

“…This paper presents the results of experimental studies on the formation conditions of a highly directional supercontinuum (SC) produced via filamentation of a…”
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THL-100 multi-terawatt laser system of visible spectrum range by Alekseev, S.V., Ivanov, N.G., Losev, V.F., Mesyats, G.A., Mikheev, L.D., Ratakhin, N.A., Panchenko, Yu.N.

“…The results of experimental studies aimed at increasing the power of THL-100 hybrid laser system are presented. The laser system consists of Ti:Sa front-end,…”
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Global model of Czochralski silicon growth to predict oxygen content and thermal fluctuations at the melt–crystal interface by Evstratov, I.Yu, Kalaev, V.V, Nabokov, V.N, Zhmakin, A.I, Makarov, Yu.N, Abramov, A.G, Ivanov, N.G, Rudinsky, E.A, Smirnov, E.M, Lowry, S.A, Dornberger, E, Virbulis, J, Tomzig, E, Ammon, W.v

“…A computational model combining calculations of global heat and mass transfer in the entire CZ system with Large Eddy Simulation (LES) of turbulent melt…”
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Special features of lasing on [N.sup.2], [n.sub.2.sup.+], Ar, Ne, and c[O.sub.2] transitions pumped by a nanosecond transverse discharge by Ivanov, N.G, Losev, V.F, Prokopev, V.E

“…Special features of lasing in the most widespread molecular and atomic gases excited by a nanosecond transverse discharge are investigated. It is shown that…”
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Conversion of a Chirp Pulse Into the Second Harmonic in a KDP Crystal by Ivanov, N. G., Losev, V. F.

“…Results of investigation of conversion of radiation with the wavelength λ = 950 nm and pulse duration of 100 ps into the second harmonic are reported. It is…”
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Femtosecond pulse width reduction upon second harmonic generation by Ivanov, N.G., Losev, V.F., Ivanov, M.V., Alekseev, S.V.

“…•The presence of small excess GDD (±3200–4000 fs2) in the femtosecond complex output compressor for fundamental frequency emission leads to increasing of the…”
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Numerical Study of Amplification of Subnanosecond Radiation Pulses in the Gas Amplifier of the THL-100 Laser System by Yastremskii, A. G., Ivanov, N. G., Losev, V. F.

“…Methods for increasing the energy characteristics of the THL-100 hybrid laser system are investigated by numerical modeling. The influence of the input laser…”
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Influence of a Fundamental Frequency Pulse Chirp on the Spectral and Temporal Second-Harmonic Characteristics by Alekseev, S. V., Ivanov, M. V., Ivanov, N. G., Losev, V. F.

“…The results of investigation of the possibility of reducing the duration of the second-harmonic radiation pulse generated by the starting complex of an THL-100…”
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About Losses in Pumping Generators of High-Power Electrodischarge Excimer Lasers by Ivanov, N. G., Losev, V. F.

“…Energy losses in pumping systems of discharge high-power lasers are investigated. To estimate the losses, the discharge circuit operation was modeled, and its…”
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Parameters of the THL-100 Hybrid Femtosecond Laser System After Modernization by Alekseev, S. V., Ivanov, M. V., Ivanov, N. G., Losev, V. F., Mesyats, G. A., Panchenko, Yu. N., Ratakhin, N. A.

“…The first experimental results obtained in visible range using the THL-100 multi-terawatt hybrid laser system after modernization of the starting femtosecond…”
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Amplification of Conically Diverging Laser Beams in the Gas Amplifier of the THL-100 Laser System by Ivanov, N. G., Ivanov, M. V., Losev, V. F., Yastremskii, A. G.

“…Amplification of conically diverging laser beams in the XeF(C-A) amplifier of the THL-100 hybrid laser system operating in the visible range (λ = 475 nm) is…”
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THL-100 Multi-Terawatt Laser System of Visible Range by Alekseev, S. V., Ivanov, M. V., Ivanov, N. G., Losev, V. F., Mesyats, G. A., Mikheev, L. D., Panchenko, Yu. N., Ratakhin, N. A., Yastremskii, A. G.

“…Results of investigation of the parameters of the THL-100 hybrid laser system of visible range developed at the IHCE SB RAS in collaboration with the LPI RAS…”
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Investigation of the Elementary Physical Processes in Plasma of Filamentation and Optical Breakdown Regions Accompanying the Propagation of the Femtosecond Laser Pulse with Wavelength of 950 nm in Air at Atmospheric Pressure by Prokopyev, V. E., Ivanov, N. G., Krivonosenko, D. A., Losev, V. F.

“…For the first time comparative investigations are performed of the emission spectra of pure air breakdown plasma initiated by a high-voltage pulse nanosecond…”
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Narrow-band tunable laser system for a lidar facility by Panchenko, Yu. N., Andreev, M. V., Bobrovnikov, S. M., Gorlov, E. V., Dudarev, V. V., Ivanov, N. G., Losev, V. F., Pavlinskii, A. V., Puchikin, A. V., Zharkov, V. I.

“…A unique ultraviolet laser system has been developed for a lidar intended to detect nitrogen oxide molecules in the atmosphere. The electric-discharge KrF…”
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Analysis of magnetic field effect on 3D melt flow in CZ Si growth by Ivanov, N.G., Korsakov, A.B., Smirnov, E.M., Khodosevitch, K.V., Kalaev, V.V., Makarov, Yu.N., Dornberger, E., Virbulis, J., von Ammon, W.

“…Three-dimensional turbulent melt convection in an industrial Czochralski Si-crystal growth system subjected to action of an axial stationary magnetic field is…”
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