Energetic beams of negative and neutral hydrogen from intense laser plasma interaction

F. Abicht; R. Prasad; M. Borghesi; G. Priebe; J. Braenzel; A. Andreev; P. V. Nickles; M. Schnürer; S. Jequier; G. Revet; V. Tikhonchuk; S. Ter-Avetisyan

doi:10.1063/1.4850456

Energetic beams of negative and neutral hydrogen from intense laser plasma interaction

F. Abicht, R. Prasad, M. Borghesi, G. Priebe, J. Braenzel, A. Andreev, P. V. Nickles, M. Schnürer, S. Jequier, G. Revet, V. Tikhonchuk, S. Ter-Avetisyan

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Abstract

We present observations of intense beams of energetic negative hydrogen ions and fast neutral hydrogen atoms in intense (5 × 10 W/cm) laser plasma interaction experiments, which were quantified in numerical calculations. Generation of negative ions and neutral atoms is ascribed to the processes of electron capture and loss by a laser accelerated positive ion in the collisions with a cloud of droplets. A comparison with a numerical model of charge exchange processes provides information on the cross section of the electron capture in the high energy domain.

Original language	English
Article number	253501
Number of pages	5
Journal	Applied Physics Letters
Volume	103
Issue number	25
DOIs	https://doi.org/10.1063/1.4850456
Publication status	Published - 16 Dec 2013

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10.1063/1.4850456

Energetic beams of negative and neutral hydrogen from intense laser plasma interaction
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AU - Abicht, F.

AU - Prasad, R.

AU - Borghesi, M.

AU - Priebe, G.

AU - Braenzel, J.

AU - Andreev, A.

AU - Nickles, P. V.

AU - Schnürer, M.

AU - Jequier, S.

AU - Revet, G.

AU - Tikhonchuk, V.

AU - Ter-Avetisyan, S.

PY - 2013/12/16

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AB - We present observations of intense beams of energetic negative hydrogen ions and fast neutral hydrogen atoms in intense (5 × 10 W/cm) laser plasma interaction experiments, which were quantified in numerical calculations. Generation of negative ions and neutral atoms is ascribed to the processes of electron capture and loss by a laser accelerated positive ion in the collisions with a cloud of droplets. A comparison with a numerical model of charge exchange processes provides information on the cross section of the electron capture in the high energy domain.

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Energetic beams of negative and neutral hydrogen from intense laser plasma interaction

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