Laser-driven relativistic electron beam interaction with solid dielectric

The multi-frames shadowgraphy, interferometry and polarimetry diagnostics with sub-ps time resolution were used for an investigation of ionization wave dynamics inside a glass target induced by laser-driven relativistic electron beam. Experiments were done using the 50 TW Leopard laser at the UNR. F...

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Hauptverfasser: Sarkisov, G. S., Ivanov, V. V., Leblanc, P., Sentoku, Y., Yates, K., Wiewior, P., Chalyy, O., Astanovitskiy, A., Bychenkov, V. Yu, Jobe, D., Spielman, R. B., Department of Physics, University of Nevada Reno, 5625 Fox Ave, Reno, NV, 89506, P.N. Lebedev Physics Institute, RAS, 53 Leninski Prospect, Moscow, 119991, Raytheon Ktech, 1300 Eubank Blvd, Albuquerque, NM, 87123
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:The multi-frames shadowgraphy, interferometry and polarimetry diagnostics with sub-ps time resolution were used for an investigation of ionization wave dynamics inside a glass target induced by laser-driven relativistic electron beam. Experiments were done using the 50 TW Leopard laser at the UNR. For a laser flux of {approx}2 Multiplication-Sign 10{sup 18}W/cm{sup 2} a hemispherical ionization wave propagates at c/3. The maximum of the electron density inside the glass target is {approx}2 Multiplication-Sign 10{sup 19}cm{sup -3}. Magnetic and electric fields are less than {approx}15 kG and {approx}1 MV/cm, respectively. The electron temperature has a maximum of {approx}0.5 eV. 2D interference phase shift shows the 'fountain effect' of electron beam. The very low ionization inside glass target {approx}0.1% suggests a fast recombination at the sub-ps time scale. 2D PIC-simulations demonstrate radial spreading of fast electrons by self-consistent electrostatic fields.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4739920