M. E. Veisman
Russian Academy of Sciences
OpticsPhysicsIonElectronThermal ionizationFemtosecondAmplitudeExcited stateElliptical polarizationAtomic physicsWaves in plasmasMaterials scienceIonizationElectron ionizationPulse (physics)LaserAtmospheric-pressure laser ionizationPlasma
9Publications
8H-index
78Citations
Publications 17
Newest
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#1M. E. VeismanH-Index: 8
#2S V KuznetsovH-Index: 1
Last. Nikolay AndreevH-Index: 22
view all 3 authors...
Source
#1M. E. VeismanH-Index: 8
#2S V KuznetsovH-Index: 1
Last. Nikolay AndreevH-Index: 22
view all 3 authors...
Laser wakefield acceleration of electron bunches possessing various initial injection energies in capillary waveguides is studied in the conditions of an asymmetric input of laser radiation into a waveguide (the propagation direction of laser radiation deviates from the capillary axis or the laser spot is not symmetric). The factors determining the critical angle of the laser radiation input into the capillary, within which the wake acceleration of electrons is close to optimal, have been found....
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#1N. E. Andreev (RAS: Russian Academy of Sciences)H-Index: 10
#2M. E. Veisman (RAS: Russian Academy of Sciences)H-Index: 8
Last. M. V. Chegotov (RAS: Russian Academy of Sciences)H-Index: 5
view all 3 authors...
The generation of low-order harmonics by a short ionizing laser pulse passing through a gas is investigated in regard to the space-time phase-synchronism conditions. This investigation is based on the results of hydrodynamic calculations for the model of [1] supplemented by taking into account the ionization current [2–5] and on the numerical solution of a one-dimensional time-dependent Schrodinger equation. As applied to the description of the third-harmonic spectrum, the hydrodynamic model wit...
Source
#1Nikolay Andreev (RAS: Russian Academy of Sciences)H-Index: 22
#2M. E. Veisman (RAS: Russian Academy of Sciences)H-Index: 8
Last. Vladimir E. Fortov (RAS: Russian Academy of Sciences)H-Index: 74
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A simple model is developed for describing the interaction of intense femtosecond laser pulses with solid-state targets which is based on a set of equations of two-temperature hydrodynamics for electrons and ions of a plasma formed upon ionization of the target matter, equations describing the variation of ion composition of plasma upon ionization and the heat energy expenditure on thermal ionization, and equations defining the energy contribution by laser radiation to the target matter. A self-...
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#1Nikolay Andreev (RAS: Russian Academy of Sciences)H-Index: 22
#2M. E. Veisman (RAS: Russian Academy of Sciences)H-Index: 8
Last. M. V. Chegotov (RAS: Russian Academy of Sciences)H-Index: 5
view all 4 authors...
A study is made of the nonadiabatic dynamics of photoelectrons produced during interaction of an elliptically polarized, high-power laser pulse with a gas. Expressions for the so-called residual momentum and energy of the electrons (i.e., the mean electron momentum and energy after the passage of the pulse through the gas) are derived. The residual electron momentum and energy are investigated analytically as functions of the gas and laser parameters. A relationship is established between the re...
Source
#1Nikolay Andreev (RAS: Russian Academy of Sciences)H-Index: 22
#2M. E. Veisman (RAS: Russian Academy of Sciences)H-Index: 8
Last. M. V. Chegotov (RAS: Russian Academy of Sciences)H-Index: 5
view all 4 authors...
One-dimensional equations are derived that describe the hydrodynamic and electrodynamic properties of a plasma created through gas ionization by a short intense laser pulse. Different approaches (in particular, the particle-in-cell method) are used to show that, with ionization processes included, the excitation of a wakefield by an intense laser pulse can be described by the method of slowly varying amplitudes. It is shown that ionization processes enhance the wakefield excited by a moderate-in...
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Wakefield generation by a femtosecond laser pulse is described in the frame of the slowly varying amplitudes approximation. The amplitude of the wakefield A, is studied as a function of laser pulse and background gas parameters, and is compared with well-known results for preformed, completely ionized plasma A/sub p,i/. It is found that the ionization processes can increase A/sub p/ as compared to A/sub p,i/ at comparatively high laser peak intensities. It is shown that the increase of the wakef...
Source
Wakefield generation by a femtosecond laser pulse is described in the frame of the slowly varying amplitudes approximation. The amplitude of the wakefield A p is studied as a function of laser pulse and background gas parameters, and is compared with well-known results for preformed, completely ionized plasma A p,i . It is found that the ionization processes can increase A p as compared to A p,i at comparatively high laser peak intensities. It is shown that the increase of the wakefield amplitud...
#1F. B. Rosmej (Technische Universität Darmstadt)H-Index: 11
#2A. Ya. FaenovH-Index: 32
Last. M. E. Veisman (RAS: Russian Academy of Sciences)H-Index: 8
view all 12 authors...
For the first time registration of high-resolution soft x-ray emission and atomic data calculations of hollow-atom dielectronic satellite spectra of highly charged nitrogen have been performed. Double-electron charge-exchange processes from excited states are proposed for the formation of autoionizing levels in high-intensity laser-produced plasmas, when field-ionized ions penetrate into the residual gas. Good agreement is found between theory and experiment. Plasma spectroscopy with hollow ions...
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