Transformation ratio at plasma wakefield excitation by laser pulse with ramping of its intensity according to cosine
Numerical simulation of the excitation of a plasma wave-phase field by means of a generated laser pulse. Increase in the coefficient of transformation. The length of the shaped laser pulse. The maximum energy, to which electrons can be accelerated.
Подобные документы
Nonlinear regimes of 1D parametric instabilities of long-wave plasma waves are considered for the cases when the average plasma field energy density is less or greater than the plasma thermal energy. The evolution of ion energy distribution is studied.
статья, добавлен 27.07.2016Capabilities of two plasma assisted methods based on a pulsed laser ablation and electrical discharges in liquid media for fabrication of metallic and composite nanoparticles. Production of metallic and composite nanoparticles with controlled parameters.
статья, добавлен 30.07.2016The dependencies of energy flow density and energy density on wave vector for different magnitudes of external magnetic field are analyzed. The sign of the Poynting vector in each plasma region is investigated. The velocity of energy propagation is found.
статья, добавлен 27.07.2016The possibility of the two-step triggering of nuclear isomers by short X-ray laser pulses via an excited intermediate level. The estimations of the decay acceleration are performed for the isomer of 84-Rb in the field of future European X-ray laser.
статья, добавлен 19.09.2013Study of formula for intrinsic stress calculation in coatings deposited from ion flux in the pulse potential mode. The case of deposition of ions with different charges. The critical parameters of pulse potential mode. Stress control deposited coating.
статья, добавлен 30.07.2016Photothermal effect of laser radiation on frozen biotissues. Тissue cryopreservation with using cooling, frizzing, laser heating. Тhe self-propagating high temperature synthesis. Using of nanoparticles high photo-thermal effect for laser of biotissues.
статья, добавлен 21.06.2018Features of the influence of high-frequency laser radiation on the characteristics of tungsten graphene. An analysis of the causes of the gap in graphene creates a gap in the band of the spectrum in the conditions of a high-frequency electromagnetic wave.
статья, добавлен 23.12.2016Laser as a distinctive type of optical light with special characteristics that combine wavelength, direction and similarity. The use of the laser as the most effective type of physical effect in medicine, especially in the treatment of skin lesions.
статья, добавлен 12.06.2018Characteristic features of lasers operating in continuous-wave or quasi-CW regimes generate a restricted output optical power, which is limited by a maximum available pump power. Analysis Raman spectrum measured for the graphene-deposited fibre ferrule.
статья, добавлен 29.01.2016In this paper we represent the distinguished laser interferometer technique that allows the wide sort of precise object displacements to be measured with the instrumental resolution up to 1 pm. Indicated the accuracy of reading of the interferometer.
реферат, добавлен 04.11.2018Study of the history of origin of the basic concepts of optical resonators and lensguides, development of new concepts and still further knowledge in this area in the first decade of the laser era. The technical aspects of optical beams and resonators.
статья, добавлен 09.09.2012New patterns of display of transversal of Doppler effect in nonrelativistic case at the multi-wave concerted sounding. The feature of MDLL as independence of frequency of Doppler signal on the output of QD from a wave-length the emission accepted EM.
статья, добавлен 22.12.2016Practical study of the general nature of the effect of an electrostatic field on a low-temperature plasma. The Tesla Converter and generator as sources of the electrostatic field in the experiment. Extinguishing the flame using an electrostatic field.
статья, добавлен 26.05.2020Split-phase symmetrical motor drive on the base of two voltage source inverters, controlled by algorithms of synchronized pulse width modulation, has been investigated. Simulation results are presented for dual three-phase power conversion systems.
статья, добавлен 02.02.2019The calculating of the elements of a picture of thermosphere circulation, direction of thermosphere wind over Kharkiv. The calculations of constituent part of vertical component of ionospheric plasma velocity caused by horizontal neutral winds were made.
статья, добавлен 30.10.2016The study of five-phase voltage inverters, regulated in accordance with the modified synchronous pulse width modulation algorithms.The multiplication of five-phase conversion systems with continuous and intermittent varieties of synchronous modulation.
статья, добавлен 02.02.2019- 17. Fields excited and providing a uniform focusing of short relativistic electron bunches in plasma
Exited fields which provide relativistic electron bunches in plasma. The purpose of this paper is to show by simulation that one can derive and achieve conditions of identical and uniform focusing of sequence of short relativistic electron bunches.
статья, добавлен 27.07.2016 Studding of Deposition of uniform coatings in the vacuum arc deposition setup. A control unit consisted of two electromagnetic coils installed under substrate of 400 mm dia. exposed to the plasma flux at a distance of 325 mm from the plasma duct exit.
статья, добавлен 30.07.2016Determination of thermal conditions of vacuum-arc plasma sources cathodes. Investigation of the thermal field of a stationary cathode surfaces, the cathodes different geometry and heat flux. A period of time for cathodes with different types of cooling.
статья, добавлен 30.07.2016Characteristic features of the effect of noise on the power and polarization characteristics of semiconductor lasers within the scope of our earlier model which considers polarization switching. Research and analysis of results of numerical simulation.
статья, добавлен 29.01.2016The latest research and development in China for magnetic field-enhanced vacuum arc deposition (MFE-VAD). The interaction between the magnetic field and cathode arc spot (and arc plasma). External magnetic field. The increasing of plasma density.
статья, добавлен 30.07.2016The modeling results of the zonal electric field and the vertical component of the plasma transfer velocity due to electromagnetic drift during magnetic storms were presented. Penetration into the mid-latitude ionosphere during geomagnetic disturbances.
статья, добавлен 30.10.2016The present work is dedicated to the development of formation method for Pt cone-shaped surface nanostructures on silicon layer. By the deposition of Pt nanostructures on solid layers, the cone-shaped surface nanostructures of Pt can be obtained.
статья, добавлен 30.07.2016Characteristic main features of the location, velocity and the acceleration of the focal point which are determined with taking the group speed of laser radiation into consideration. Definition of the acceleration of the focal point at the exit.
статья, добавлен 29.01.2016For low-lying collective excitations was calculated inertia in the semiclassical Gutzwiller approach to one-body Green's function. Excitation energy, reducing the probability-weighted sum rules are consistent with the features of the experimental data.
статья, добавлен 07.10.2013