Sokollik, T.;
Schnürer, M.;
Ter-Avetisyan, S.;
Nickles, P. V.;
Risse, E.;
Kalashnikov, M.;
Sandner, W.;
Priebe, G.;
Amin, M.;
Toncian, T.;
Willi, O.;
Andreev, A. A.
Transient electric fields in laser plasmas observed by proton streak deflectometry
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Medientyp:
E-Artikel
Titel:
Transient electric fields in laser plasmas observed by proton streak deflectometry
Beteiligte:
Sokollik, T.;
Schnürer, M.;
Ter-Avetisyan, S.;
Nickles, P. V.;
Risse, E.;
Kalashnikov, M.;
Sandner, W.;
Priebe, G.;
Amin, M.;
Toncian, T.;
Willi, O.;
Andreev, A. A.
Beschreibung:
A novel proton imaging technique was applied which allows a continuous temporal record of electric fields within a time window of several nanoseconds. This “proton streak deflectometry” was used to investigate transient electric fields of intense (∼1017W∕cm2) laser irradiated foils. We found out that these fields with an absolute peak of up to 108V∕m extend over millimeter lateral extension and decay at nanosecond duration. Hence, they last much longer than the (approximately picosecond) laser excitation and extend much beyond the laser irradiation focus.