4.6 Article

Ultrafast electron and proton bunches correlation in laser-solid matter experiments

Journal

OPTICS LETTERS
Volume 45, Issue 19, Pages 5575-5578

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OPTICAL SOC AMER
DOI: 10.1364/OL.402938

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The interaction of an ultra-intense laser with a solid state target allows the production of multi-MeV proton and ion beams. This process is explained by the target normal sheath acceleration (TNSA) model, predicting the creation of an electric field on the target rear side, due to an unbalanced positive charge. This process is related to the emission of relativistic ultrafast electrons, occurring at an earlier time. In this work, we highlight the correlations between the ultrafast electron component and the protons by their simultaneous detection by means of an electro-optical sampling and a time-of-flight diagnostics, respectively, supported by numerical simulations showing an excellent agreement. (C) 2020 Optical Society of America

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