Micrometer-sized negative-ion accelerator based on ultrashort laser pulse interaction with transparent solids

Bagchi, S and Tayyab, M and Bhuvanesh, Ramakrishna and Upadhyay, A and Mandal, T and Chakera, J A and Naik, P A and Gupta, P D (2015) Micrometer-sized negative-ion accelerator based on ultrashort laser pulse interaction with transparent solids. Physical Review E, 92 (5). ISSN 1539-3755

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Abstract

We report here energetic (>100keV) negative hydrogen ions (H−) generated in the interaction of moderately intense (1018Wcm−2) ultrashort laser pulses (45 fs) with transparent hydrogen containing solid targets. An unambiguous and consistent detection of negative hydrogen ions, with a flux of 8×1011H− ions/sr, has been observed in every single laser shot, using a Thomson parabola ion spectrograph. Simple estimates based on charge transfer cross sections match well with experimental observations. Our method offers the implementation of an intense, ultrashort laser based negative-ion source at a higher repetition rate, which can be important for various applications.

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IITH Creators:	IITH Creators ORCiD Bhuvanesh, Ramakrishna http://orcid.org/0000-0002-2728-6809
Item Type:	Article
Subjects:	Physics
Divisions:	Department of Physics
Depositing User:	Team Library
Date Deposited:	01 Sep 2017 09:39
Last Modified:	01 Sep 2017 09:39
URI:	http://raiithold.iith.ac.in/id/eprint/3514
Publisher URL:	https://doi.org/10.1103/PhysRevE.92.051103
OA policy:	http://www.sherpa.ac.uk/romeo/issn/1539-3755/
Related URLs:	Google Scholar

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