Search Results - "Savel'ev, A. B."

Robust multifilament arrays in air by Dammann grating by Pushkarev, D. V., Lar’kin, A. S., Mitina, E. V., Zhidovtsev, N. A., Uryupina, D. S., Volkov, R. V., Karpeev, S. V., Khonina, S. N., Karabutov, A. A., Geints, Yu. E., Kosareva, O. G., Savel’ev, A. B.

“…We compare transverse structure evolution and energy deposition into the medium within focused multifilament arrays created using two different types of…”
Get full text

Ring and unimodal angular-frequency distribution of THz emission from two-color femtosecond plasma spark by Ushakov, A A, Chizhov, P A, Andreeva, V A, Panov, N A, Shipilo, D E, Matoba, M, Nemoto, N, Kanda, N, Konishi, K, Bukin, V V, Kuwata-Gonokami, M, Kosareva, O G, Garnov, S V, Savel'ev, A B

“…We study angular and frequency-angular distributions of the terahertz (THz) emission of the low-frequency region (0.3-3 THz) from a two-color femtosecond…”
Get full text

Fifteen meter long uninterrupted filaments from sub-terawatt ultraviolet pulse in air by Shipilo, D E, Panov, N A, Sunchugasheva, E S, Mokrousova, D V, Shutov, A V, Zvorykin, V D, Ustinovskii, N N, Seleznev, L V, Savel'ev, A B, Kosareva, O G, Chin, S L, Ionin, A A

“…A technique is presented to create uninterrupted long ultraviolet filaments in air using appropriately structured transmission mesh. The mesh with different…”
Get full text

Waveform, spectrum, and energy of backward terahertz emission from two-color femtosecond laser induced microplasma by Ushakov, A. A., Panov, N. A., Chizhov, P. A., Shipilo, D. E., Bukin, V. V., Savel'ev, A. B., Garnov, S. V., Kosareva, O. G.

“…We measured the key characteristics of the backward terahertz (THz) emission from a two-color femtosecond laser spark in air: waveform, spectrum, and energy…”
Get full text

Remote triggering of air-gap discharge by a femtosecond laser filament and postfilament at distances up to 80 m by Kosareva, O. G., Mokrousova, D. V., Panov, N. A., Nikolaeva, I. A., Shipilo, D. E., Mitina, E. V., Koribut, A. V., Rizaev, G. E., Couairon, A., Houard, A., Savel'ev, A. B., Seleznev, L. V., Ionin, A. A., Chin, S. L.

“…We experimentally observed laser-induced remote high-voltage discharge triggering between two needle electrodes with half-a-cm spacing. The discharge was…”
Get full text

Optimization of the Yield of Low-Threshold Nuclear Reactions under Action of Protons Accelerated Using Terawatt Femtosecond Laser by Skibina, V. M., Savel’ev, A. B.

“…The paper consider the possibility to execute nuclear reactions nuclear reactions with low energy threshold by means of terawatt femtosecond laser systems,…”
Get full text

Laser-driven pointed acceleration of electrons with preformed plasma lens by Ivanov, K. A., Gorlova, D. A., Tsymbalov, I. N., Tsygvintsev, I. P., Shulyapov, S. A., Volkov, R. V., Savel’ev, A. B.

“…The simultaneous laser-driven acceleration and angular manipulation of the fast electron beam are experimentally demonstrated. The bunch of multi-MeV energy…”
Get full text

Formation of an O-Shaped Structure in the Red Wing of the Frequency–Angular Spectrum During Filamentation on a Long Atmospheric Path by Pushkarev, D. V., Seleznev, L. V., Rizaev, G. E., Uryupina, D. S., Zhidovtsev, N. A., Kosareva, O. G., Savel’ev, A. B.

“…An O-shaped structure at wavelengths of 930–960 nm in the frequency–angular spectrum of the supercontinuum generated during the filamentation of a femtosecond…”
Get full text

Spectroscopy of Metastable and Isomeric Nuclei with the Help of Multibeam Multipetawatt Lasers by Shulyapov, S. A., Zavorotnyi, A. Yu, Savel’ev, A. B.

“…The prospects of application of high-power laser systems for the problems of nuclear photonics are discussed. By the example of the structure of the nuclear…”
Get full text

Generation of THz Radiation with Extreme Parameters Using a Multipetawatt Laser Beam by Gorlova, D. A., Tsymbalov, I. N., Ivanov, K. A., Savel’ev, A. B.

“…The interaction between a laser pulse with a peak power of 15 PW and a solid film target in the reflection and transmission regimes has been numerically…”
Get full text

Cascade Acceleration of Electrons in a Plasma Channel Created by Several Petawatt Laser Pulses by Starodubtseva, E. M., Tsymbalov, I. N., Ivanov, K. A., Gorlova, D. A., Savel’ev, A. B.

“…In this paper, we propose a method for calculating a multistage scheme for direct laser-plasma electron acceleration to overcome the effect of dephasing and…”
Get full text

Neutron Source from (γ,n) Reactions at a Laser-Plasma Accelerator and Its Use for Electron Beam Characterization by Gorlova, D. A., Zavorotny, A. Yu, Tsymbalov, I. N., Ivanov, K. A., Shulyapov, S. A., Volkov, R. V., Savel’ev, A. B.

“…Compact laboratory neutron sources play a crucial role in both fundamental physical research and practical applications, such as neutron radiography and…”
Get full text

Tracing Air-Breakdown Plasma Characteristics from Single-Color Filament Terahertz Spectra by Mokrousova, D. V., Savinov, S. A., Seleznev, L. V., Rizaev, G. E., Koribut, A. V., Mityagin, Yu. A., Ionin, A. A., Nikolaeva, I. A., Shipilo, D. E., Panov, N. A., Ushakov, A. A., Savel’ev, A. B., Kosareva, O. G., Shkurinov, A. P.

“…In this paper, we measure broadband terahertz spectra from a single 744-nm filament produced in tight, medium, and loose geometrical focusing conditions…”
Get full text

Extreme Light Diagnostics by Vais, O. E., Ivanov, K. A., Tsymbalov, I. N., Bukharskii, N. D., Bychenkov, V. Yu, Korneev, Ph. A., Savel’ev, A. B.

“…The generation of high-power short laser pulses of ultrarelativistic intensity (over 10 20 W/cm 2 ) using the XCELS [1] infrastructure and their application to…”
Get full text

Nonlinear increase in the energy input into a medium at the fusion of regularized femtosecond filaments by Pushkarev, D. V., Mitina, E. V., Uryupina, D. S., Volkov, R. V., Panov, N. A., Karabutov, A. A., Kosareva, O. G., Savel’ev, A. B.

“…The fusion in air of four femtosecond laser beams each with the peak power several times higher than the critical self-focusing power has been studied…”
Get full text

Nanostructured plasmas for enhanced gamma emission at relativistic laser interaction with solids by Ivanov, K. A., Gozhev, D. A., Rodichkina, S. P., Makarov, S. V., Makarov, S. S., Dubatkov, M. A., Pikuz, S. A., Presnov, D. E., Paskhalov, A. A., Eremin, N. V., Brantov, A. V., Bychenkov, V. Yu, Volkov, R. V., Timoshenko, V. Yu, Kudryashov, S. I., Savel’ev, A. B.

“…The hot plasma formed onto the surface of nanostructured targets by a relativistically intense (up to 4 × 10 18  W/cm 2 ), high contrast femtosecond laser…”
Get full text

Accounting for the Edge Effects of Electric and Magnetic Fields in the Spectroscopy of Ion Flows from Relativistic Laser Plasma by Mordvintsev, I. M., Shulyapov, S. A., Savel’ev, A. B.

“…Analytical formulas are obtained that describe stationary fields in magnetic and electric separators of charged particles of ion spectrometers of two types…”
Get full text

Backward Terahertz Radiation from a Two-Color Femtosecond Laser Filament by Ushakov, A. A., Matoba, M., Nemoto, N., Kanda, N., Konishi, K., Chizhov, P. A., Panov, N. A., Shipilo, D. E., Bukin, V. V., Kuwata-Gonokami, M., Yumoto, J., Kosareva, O. G., Garnov, S. V., Savel’ev, A. B.

“…We report the first experimental observation of backward terahertz emission from the two-color laser induced plasma filament in air. The ratio of measured…”
Get full text

The Diagnostic Probing of Laser Plasma with a Femtosecond Time Resolution Using a Three-Channel Polarization Interferometer by Bolkhovitinov, E. A., Gospodinov, G. A., Ivanov, K. A., Rupasov, A. A., Savel’ev, A. B.

“…The possibility of modifying the scheme of the previously developed three-channel polarization interferometer and creating a device that allows laser probing…”
Get full text

Investigation of the reaction D(γ, n)H near the threshold by means of powerful femtosecond laser radiation by Tsymbalov, I. N., Volkov, R. V., Eremin, N. V., Ivanov, K. A., Nedorezov, V. G., Paskhalov, A. A., Polonskij, A. L., Savel’ev, A. B., Sobolevskij, N. M., Turinge, A. A., Shulyapov, S. A.

“…The possibility of studying photonuclear reactions near the threshold by means of powerful femtosecond lasers is explored by considering the example of…”
Get full text