5.5-7.5 MeV proton generation by a moderate-intensity ultrashort-pulse laser interaction with H2O nanowire targets

We report on the first generation of 5.5-7.5 MeV protons by a moderate-intensity short-pulse laser (∼5×10(17)  W/cm(2), 40 fsec) interacting with frozen H(2)O nanometer-size structure droplets (snow nanowires) deposited on a sapphire substrate. In this setup, the laser intensity is locally enhanced...

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Published inPhysical review letters Vol. 106; no. 13; p. 134801
Main Authors Zigler, A, Palchan, T, Bruner, N, Schleifer, E, Eisenmann, S, Botton, M, Henis, Z, Pikuz, S A, Faenov, Jr, A Y, Gordon, D, Sprangle, P
Format Journal Article
LanguageEnglish
Published United States 01.04.2011
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Abstract We report on the first generation of 5.5-7.5 MeV protons by a moderate-intensity short-pulse laser (∼5×10(17)  W/cm(2), 40 fsec) interacting with frozen H(2)O nanometer-size structure droplets (snow nanowires) deposited on a sapphire substrate. In this setup, the laser intensity is locally enhanced by the snow nanowire, leading to high spatial gradients. Accordingly, the nanoplasma is subject to enhanced ponderomotive potential, and confined charge separation is obtained. Electrostatic fields of extremely high intensities are produced over the short scale length, and protons are accelerated to MeV-level energies.
AbstractList We report on the first generation of 5.5-7.5 MeV protons by a moderate-intensity short-pulse laser (∼5×10(17)  W/cm(2), 40 fsec) interacting with frozen H(2)O nanometer-size structure droplets (snow nanowires) deposited on a sapphire substrate. In this setup, the laser intensity is locally enhanced by the snow nanowire, leading to high spatial gradients. Accordingly, the nanoplasma is subject to enhanced ponderomotive potential, and confined charge separation is obtained. Electrostatic fields of extremely high intensities are produced over the short scale length, and protons are accelerated to MeV-level energies.
Author Henis, Z
Gordon, D
Schleifer, E
Faenov, Jr, A Y
Zigler, A
Botton, M
Bruner, N
Eisenmann, S
Palchan, T
Sprangle, P
Pikuz, S A
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BackLink https://www.ncbi.nlm.nih.gov/pubmed/21517389$$D View this record in MEDLINE/PubMed
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Snippet We report on the first generation of 5.5-7.5 MeV protons by a moderate-intensity short-pulse laser (∼5×10(17)  W/cm(2), 40 fsec) interacting with frozen H(2)O...
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Title 5.5-7.5 MeV proton generation by a moderate-intensity ultrashort-pulse laser interaction with H2O nanowire targets
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