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- University of LisbonPT1.3k papers
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8 papers · 2 filters
Controlling fast electron beam divergence using two laser pulses
R. H. H. Scott, C. Beaucourt, H. -P. Schlenvoigt +21
This paper describes the first experimental demonstration of the guiding of a relativistic electron beam in a solid target using two co-linear, relativistically intense, picosecond…
High-brilliance synchrotron radiation induced by the plasma magnetostatic mode
F. Fiuza, L. O. Silva, C. Joshi
Using multi-dimensional PIC simulations we show that the magnetic undulator-type field of the plasma magnetostatic mode is indeed produced by the interaction of a laser pulse with…
Modeling of an EHD corona flow in nitrogen gas using an asymmetric capacitor for propulsion
Alexandre A. Martins, Mario J. Pinheiro
The present work intends to identify the nature of the propulsive force that occurs during a positive corona discharge in nitrogen gas using an asymmetric capacitor geometry. We ar…
Observation of post-soliton expansion following laser propagation through an underdense plasma
G. Sarri, 1 D. K. Singh, 2 J. R. Davies +15
The expansion of electromagnetic post-solitons emerging from the interaction of a 30 ps, W cm laser pulse with an underdense deuterium plasma has been obse…
Understanding the effect of sheared flow on microinstabilities
Sarah L. Newton, Steve C. Cowley, Nuno F. Loureiro
The competition between the drive and stabilization of plasma microinstabilities by sheared flow is investigated, focusing on the ion temperature gradient mode. Using a twisting mo…
Micron-scale Fast Electron Filamentation and Recirculation determined from Rear Side Optical Emission in High Intensity Laser-Solid Interactions
C. Bellei, S. R. Nagel, S. Kar +24
The transport of relativistic electrons generated in the interaction of petawatt class lasers with solid targets has been studied through measurements of the optical emission from…