Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Valdas Girdauskas"'
Autor:
Lucas Rovige, Joséphine Monzac, Julius Huijts, Igor A. Andriyash, Aline Vernier, Jaismeen Kaur, Marie Ouillé, Zhao Cheng, Vidmantas Tomkus, Valdas Girdauskas, Gediminas Raciukaitis, Juozas Dudutis, Valdemar Stankevic, Paulius Gecys, Rodrigo Lopez-Martens, Jérôme Faure
Publikováno v:
The European Physical Journal. Special Topics
The European Physical Journal. Special Topics, 2022, ⟨10.1140/epjs/s11734-022-00675-7⟩
The European Physical Journal. Special Topics, 2022, ⟨10.1140/epjs/s11734-022-00675-7⟩
International audience; In laser-wakefield acceleration, an ultra-intense laser pulse is focused into an underdense plasma to accelerate electrons to relativistic velocities. In most cases, the pulses consist of multiple optical cycles and the intera
High-intensity laser pulse propagating through a gas target disturbs uniform plasma distribution. Plasma density structures, created by high-order Bessel-Gauss beams for guiding the Gaussian beam driver and laser wakefield acceleration of electrons,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bdacff4bfdaf8d2528c67bf0faacfa0
https://doi.org/10.21203/rs.3.rs-1561509/v1
https://doi.org/10.21203/rs.3.rs-1561509/v1
Autor:
Gediminas Račiukaitis, Juozas Dudutis, Valdemar Stankevič, Valdas Girdauskas, Vidmantas Tomkus, Paulius Gečys
Publikováno v:
Applied Surface Science. 483:205-211
In this report, the impact of the wall roughness of the cylindrical micronozzles with the diameter of 50 μm, 100 μm and 200 μm on the concentration profiles of the gas targets for laser plasma wakefield acceleration was investigated. Micronozzles
Autor:
Lucas Rovige, Paulius Gečys, Aline Vernier, F. Sylla, Igor Andriyash, Gediminas Račiukaitis, Valdas Girdauskas, Jérôme Faure, Vidmantas Tomkus, Juozas Dudutis, Julius Huijts, Valdemar Stankevič
Publikováno v:
Review of Scientific Instruments
Review of Scientific Instruments, American Institute of Physics, 2021, 92 (8), pp.083302. ⟨10.1063/5.0051173⟩
Review of Scientific Instruments, American Institute of Physics, 2021, 92 (8), pp.083302. ⟨10.1063/5.0051173⟩
International audience; Shocks in supersonic flows offer both high density and sharp density gradients that are used, for instance, for gradient injection in laser-plasma accelerators. We report on a parametric study of oblique shocks created by inse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e517d9f4067e654d5a9c847832c6089e
https://hal.archives-ouvertes.fr/hal-03419506/document
https://hal.archives-ouvertes.fr/hal-03419506/document
Autor:
Audrius Maruška, Mihkel Kaljurand, Tomas Drevinskas, Valdas Girdauskas, Gediminas Dūda, Jelena Gorbatsova
Publikováno v:
Analytical methods : advancing methods and applications. 12(41)
Hazardous remote places exist in the world. Why should health or life be risked sending a scientist to the investigation site, as the remote analytical instrumentation exists? Different scientific fields require instruments that could be used on-site
Autor:
Valdas Girdauskas, Anders Persson, Valdemar Stankevič, Vidmantas Tomkus, Juozas Dudutis, Isabel Gallardo González, Diego Guenot, Jonas Björklund Svensson, Gediminas Račiukaitis, Paulius Gečys, Olle Lundh
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-17 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-17 (2020)
Laser Plasma Wakefield Accelerated (LWFA) electron beams and efficiency of betatron X-ray sources is studied using laser micromachined supersonic gas jet nozzle arrays. Separate sections of the target are used for the injection, acceleration and enha
Autor:
Gediminas Račiukaitis, Aline Vernier, Rodrigo Lopez-Martens, Valdemar Stankevič, Paulius Gečys, Jérôme Faure, Valdas Girdauskas, Igor Andriyash, Juozas Dudutis, Zhao Cheng, Julius Huijts, Vidmantas Tomkus, Marie Ouillé, Lucas Rovige
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 9, p 093401 (2020)
Physical Review Accelerators and Beams, 23(9):093401. American Physical Society
Phys.Rev.Accel.Beams
Phys.Rev.Accel.Beams, 2020, 23 (9), pp.093401. ⟨10.1103/PhysRevAccelBeams.23.093401⟩
Physical Review Accelerators and Beams, 23(9):093401. American Physical Society
Phys.Rev.Accel.Beams
Phys.Rev.Accel.Beams, 2020, 23 (9), pp.093401. ⟨10.1103/PhysRevAccelBeams.23.093401⟩
International audience; We report on the stable and continuous operation of a kilohertz laser-plasma accelerator. Electron bunches with 2.6 pC charge and 2.5 MeV peak energy were generated via injection and trapping in a downward plasma density ramp.
Autor:
Lucas Rovige, Aline Vernier, Jérôme Faure, Julius Huijts, Marie Ouillé, Igor Andriyash, T. Asai, Valdas Girdauskas, Vidmantas Tomkus, Y. Fukuda, Paulius Gečys, Gediminas Račiukaitis, Juozas Dudutis, Rodrigo Lopez-Martens, Zhao Cheng, Valdemar Stankevič
Publikováno v:
Phys.Plasmas
Phys.Plasmas, 2021, 28 (3), pp.033105. ⟨10.1063/5.0040926⟩
Phys.Plasmas, 2021, 28 (3), pp.033105. ⟨10.1063/5.0040926⟩
International audience; Laser–plasma acceleration at kilohertz repetition rates has recently been shown to work in two different regimes with pulse lengths of either 30 fs or 3.5 fs. We now report on a systematic study in which a large range of pul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4e2034bff85e3c2de7ad87ec5d44089
Autor:
Andrejus Michailovas, Laurynas Veselis, Pierre-Marc Dansette, Rokas Danilevicius, Karolis Madeikis, Rokas Jutas, Valdas Girdauskas, Tadas Bartulevicius, Maksim Yu. Eremchev
Publikováno v:
Optics & Laser Technology. 143:107373
In the present work we performed research of supercontinuum generation in several commonly used and new supercontinuum generation crystals for subsequent nonlinear amplification, using 1–3 µJ energy pulses of 300 fs duration at 1 MHz repetition ra
Autor:
Eimantas Gladkauskas, Audrius Maruška, Valdas Girdauskas, Laimutis Telksnys, Tomas Drevinskas, Jelena Gorbatsova, Ona Ragažinskienė, Mihkel Kaljurand
Publikováno v:
Chemija. 29
Portable and autonomous analytical instrumentation is becoming more important. Portable instrumentation can be designed via the miniaturization approach and this is a challenging task due to: (i) the limited battery power supply, (ii) a low number of