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Start Over Author "Popescu, H." Journal physics of plasmas
4 results on '"Popescu, H."'

2. Comparative spectra and efficiencies of ions laser-accelerated forward from the front and rear surfaces of thin solid foils

Author

Fuchs, J., primary, Sentoku, Y., additional, d’Humières, E., additional, Cowan, T. E., additional, Cobble, J., additional, Audebert, P., additional, Kemp, A., additional, Nikroo, A., additional, Antici, P., additional, Brambrink, E., additional, Blazevic, A., additional, Campbell, E. M., additional, Fernández, J. C., additional, Gauthier, J.-C., additional, Geissel, M., additional, Hegelich, M., additional, Karsch, S., additional, Popescu, H., additional, Renard-LeGalloudec, N., additional, Roth, M., additional, Schreiber, J., additional, Stephens, R., additional, and Pépin, H., additional

Published
2007
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3. Subfemtosecond, coherent, relativistic, and ballistic electron bunches generated at ω and 2ω in high intensity laser-matter interaction

Author

Popescu, H., primary, Baton, S. D., additional, Amiranoff, F., additional, Rousseaux, C., additional, Le Gloahec, M. Rabec, additional, Santos, J. J., additional, Gremillet, L., additional, Koenig, M., additional, Martinolli, E., additional, Hall, T., additional, Adam, J. C., additional, Heron, A., additional, and Batani, D., additional

Published
2005
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4. Subfemtosecond, coherent, relativistic, and ballistic electron bunches generated at ω0 and 2ω0 in high intensity laser-matter interaction.

Author

Popescu, H., Baton, S. D., Amiranoff, F., Rousseaux, C., Le Gloahec, M. Rabec, Santos, J. J., Gremillet, L., Koenig, M., Martinolli, E., Hall, T., Adam, J. C., Heron, A., and Batani, D.

Subjects
*LASER beams, *CATHODE rays, *ULTRASHORT laser pulses, *IRRADIATION, *COHERENCE (Physics), *RELATIVISTIC kinematics, *FEMTOCHEMISTRY
Abstract

Harmonics of the laser light have been observed from the rear side of solid targets irradiated by a laser beam at relativistic intensities. This emission evidences the acceleration of subfemtosecond electron bunches by the laser pulse in front of the target. These bunches emit coherent transition radiation (CTR) when passing through the back surface of the target. The spectral features of the signal recorded for targets of thicknesses up to several hundred microns are consistent with the electrons being accelerated by both the laser electric field—via vacuum heating and/or resonance absorption,—and the v×B component of the Lorentz force. The spatial study of the radiation shows that the relativistic electrons causing the CTR radiation are coherent and propagate ballistically through the target, originating from a source with a size of the order of the laser focal spot. [ABSTRACT FROM AUTHOR]

Published
2005
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