Proton probing measurement of electric and magnetic fields generated by ns and ps laser-matter interactions

Year: 2008

Authors: Romagnani L., Borghesi M., Cecchetti C.A., Kar S., Antici P., Audebert P., Bandhoupadjay S., Ceccherini F., Cowan T., Fuchs J., Galimberti M., Gizzi LA., Grismayer T., Heathcote R., Jung R., Liseykina T.V., Macchi A., Mora P., Neely D., Notley M., Osterholtz J., Pipahl C.A., Pretzler G., Schiavi A., Schurtz G., Toncian T., Wilson P.A., Willi O.

Autors Affiliation: School of Mathematics and Physics, The Queen’s University of Belfast, Belfast, UK;
Laboratoire pour l’Utilisation des Lasers Intenses (LULI), UMR 7605 CNRS-CEA-Ecole Polytechnique-University, Palaiseau, France;
Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, UK;
Dipartimento di Fisica “E. Fermi,” Universita` di Pisa, Pisa, Italy;
Physics Department, MS-220, University of Nevada, Reno, Nevada;
Intense Laser Irradiation Laboratory, IPCF-CNR, Pisa, Italy;
Centre de Physique Theorique, UMR 7644, CNRS-Ecole Polytechnique, Palaiseau, France;
Centre d’Etudes des Lasers Intenses et Applications, UMR 5107 Universtity of Bordeaux I-CNRS-CEA, France;
PolyLAB, CNR-INFM, Pisa, Italy;
Institut fur Laser und Plasma Physik, Heinrich-Heine-Universitat Dusseldorf, Germany;
Dipartimento di Energetica, Universita` di Roma, La Sapienza, Roma, Italy

Abstract: The use of laser-accelerated protons as a particle probe for the detection of electric fields in plasmas has led in recent years to a wealth of novel information regarding the ultrafast plasma dynamics following high intensity laser-matter interactions. The high spatial quality and short duration of these beams have been essential to this purpose. We will discuss some of the most recent results obtained with this diagnostic at the Rutherford Appleton Laboratory (UK) and at LULI – Ecole Polytechnique (France), also applied to conditions of interest to conventional Inertial Confinement Fusion. In particular, the technique has been used to measure electric fields responsible for proton acceleration from solid targets irradiated with ps pulses, magnetic fields formed by ns pulse irradiation of solid targets, and electric fields associated with the ponderomotive channelling of ps laser pulses in under-dense plasmas.


Volume: 26 (2)      Pages from: 241  to: 248

KeyWords: laser acceleration of particles; laser channeling; laser-plasma interaction; plasma dynamics; proton probing
DOI: 10.1017/S0263034608000281

Citations: 43
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