Portal de Periódicos da CAPES

Lateral Electron Transport in High-Intensity Laser-Irradiated Foils Diagnosed by Ion Emission

2007; American Physical Society; Volume: 98; Issue: 14 Linguagem: Inglês

10.1103/physrevlett.98.145001

1092-0145

P. McKenna, D. C. Carroll, R. J. Clarke, Roger G. Evans, K. W. D. Ledingham, Filip Lindau, O. Lundh, T. McCanny, D. Neely, A. P. L. Robinson, L. Robson, P. T. Simpson, C.-G. Wahlström, M. Zepf,

Ion-surface interactions and analysis

An experimental investigation of lateral electron transport in thin metallic foil targets irradiated by ultraintense (>or=10(19) W/cm2) laser pulses is reported. Two-dimensional spatially resolved ion emission measurements are used to quantify electric-field generation resulting from electron transport. The measurement of large electric fields ( approximately 0.1 TV/m) millimeters from the laser focus reveals that lateral energy transport continues long after the laser pulse has decayed. Numerical simulations confirm a very strong enhancement of electron density and electric field at the edges of the target.