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Experimental Study of Nanosecond Laser-Generated Plasma Channels

Institute of Physics of the CAS, ELI Beamlines, Na Slovance 2, 18221 Prague, Czech Republic
Consiglio Nazionale delle Ricerche, Istituto Nazionale di Ottica, Via G. Moruzzi 1, 56124 Pisa, Italy
Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, 115 19 Praha 1, Czech Republic
HiLASE Centre, Institute of Physics, Czech Academy of Sciences, Za Radnicí 828, 25241 Dolní Břežany, Czech Republic
Centre for Plasma Physics, Queen’s University of Belfast, Belfast BT7 1NN, UK
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(12), 4082;
Received: 8 May 2020 / Revised: 4 June 2020 / Accepted: 11 June 2020 / Published: 13 June 2020
Generation of plasma-channels by interaction of gas targets with nanosecond laser beams was investigated experimentally. Such laser-generated plasma channels are very promising for subsequent guiding of high peak power femtosecond laser pulses, over several tens of centimeters, as required in laser wake field electron-acceleration (LWFA). The experimental setup was based on the use of a cylindrical lens (100 mm of focal length) with the aim of proposing a technical solution easy to be integrated into a compact experimental setup for acceleration of multi-GeV electron beams using high peak-power laser systems. A pilot experiment, showing production of asymmetric plasma channels over a length of several millimeters in N and Ar targets with initial neutral-gas atomic density around 5 × 1019 cm−3, is reported. Plasma effective threshold formation was estimated, along with future optimization of the optical setup for a symmetrization of such plasma channel. Scalability of this concept to several tens of centimeters is preliminarily discussed, along with the corresponding critical requirements for an optimal LWFA scheme. View Full-Text
Keywords: LWFA; plasma guiding; nanosecond laser; laser-plasma acceleration LWFA; plasma guiding; nanosecond laser; laser-plasma acceleration
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MDPI and ACS Style

Levato, T.; Nevrkla, M.; Nawaz, M.F.; Giuffrida, L.; Grepl, F.; Zulic, H.; Pilar, J.; Hanus, M.; Divoky, M.; Lucianetti, A.; Mocek, T.; Margarone, D. Experimental Study of Nanosecond Laser-Generated Plasma Channels. Appl. Sci. 2020, 10, 4082.

AMA Style

Levato T, Nevrkla M, Nawaz MF, Giuffrida L, Grepl F, Zulic H, Pilar J, Hanus M, Divoky M, Lucianetti A, Mocek T, Margarone D. Experimental Study of Nanosecond Laser-Generated Plasma Channels. Applied Sciences. 2020; 10(12):4082.

Chicago/Turabian Style

Levato, Tadzio, Michal Nevrkla, Muhammad Fahad Nawaz, Lorenzo Giuffrida, Filip Grepl, Haris Zulic, Jan Pilar, Martin Hanus, Martin Divoky, Antonio Lucianetti, Tomas Mocek, and Daniele Margarone. 2020. "Experimental Study of Nanosecond Laser-Generated Plasma Channels" Applied Sciences 10, no. 12: 4082.

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