Femtosecond dynamics of energetic electrons in high intensity laser-matter interactions
Highly energetic electrons are generated at the early phases of the interaction of short-pulse high-intensity lasers with solid targets. These escaping particles are identified as the essential core of picosecond-scale phenomena such as laser-based acceleration, surface manipulation, generation of i...
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| Veröffentlicht in: | Scientific reports 2016-10, Vol.6 (1), p.35000-35000, Article 35000 |
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| creator | Pompili, R. Anania, M. P. Bisesto, F. Botton, M. Castellano, M. Chiadroni, E. Cianchi, A. Curcio, A. Ferrario, M. Galletti, M. Henis, Z. Petrarca, M. Schleifer, E. Zigler, A. |
| description | Highly energetic electrons are generated at the early phases of the interaction of short-pulse high-intensity lasers with solid targets. These escaping particles are identified as the essential core of picosecond-scale phenomena such as laser-based acceleration, surface manipulation, generation of intense magnetic fields and electromagnetic pulses. Increasing the number of the escaping electrons facilitate the late time processes in all cases. Up to now only indirect evidences of these important forerunners have been recorded, thus no detailed study of the governing mechanisms was possible. Here we report, for the first time, direct time-dependent measurements of energetic electrons ejected from solid targets by the interaction with a short-pulse high-intensity laser. We measured electron bunches up to 7 nanocoulombs charge, picosecond duration and 12 megaelectronvolts energy. Our ’snapshots’ capture their evolution with an unprecedented temporal resolution, demonstrat- ing a significant boost in charge and energy of escaping electrons when increasing the geometrical target curvature. These results pave the way toward significant improvement in laser acceleration of ions using shaped targets allowing the future development of small scale laser-ion accelerators. |
| doi_str_mv | 10.1038/srep35000 |
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P. ; Bisesto, F. ; Botton, M. ; Castellano, M. ; Chiadroni, E. ; Cianchi, A. ; Curcio, A. ; Ferrario, M. ; Galletti, M. ; Henis, Z. ; Petrarca, M. ; Schleifer, E. ; Zigler, A.</creator><creatorcontrib>Pompili, R. ; Anania, M. P. ; Bisesto, F. ; Botton, M. ; Castellano, M. ; Chiadroni, E. ; Cianchi, A. ; Curcio, A. ; Ferrario, M. ; Galletti, M. ; Henis, Z. ; Petrarca, M. ; Schleifer, E. ; Zigler, A.</creatorcontrib><description>Highly energetic electrons are generated at the early phases of the interaction of short-pulse high-intensity lasers with solid targets. These escaping particles are identified as the essential core of picosecond-scale phenomena such as laser-based acceleration, surface manipulation, generation of intense magnetic fields and electromagnetic pulses. Increasing the number of the escaping electrons facilitate the late time processes in all cases. Up to now only indirect evidences of these important forerunners have been recorded, thus no detailed study of the governing mechanisms was possible. Here we report, for the first time, direct time-dependent measurements of energetic electrons ejected from solid targets by the interaction with a short-pulse high-intensity laser. We measured electron bunches up to 7 nanocoulombs charge, picosecond duration and 12 megaelectronvolts energy. Our ’snapshots’ capture their evolution with an unprecedented temporal resolution, demonstrat- ing a significant boost in charge and energy of escaping electrons when increasing the geometrical target curvature. These results pave the way toward significant improvement in laser acceleration of ions using shaped targets allowing the future development of small scale laser-ion accelerators.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep35000</identifier><identifier>PMID: 27713541</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/766/1960/1135 ; 639/766/1960/1137 ; Electrons ; Energy charge ; Humanities and Social Sciences ; Lasers ; Magnetic fields ; multidisciplinary ; Science</subject><ispartof>Scientific reports, 2016-10, Vol.6 (1), p.35000-35000, Article 35000</ispartof><rights>The Author(s) 2016</rights><rights>Copyright Nature Publishing Group Oct 2016</rights><rights>Copyright © 2016, The Author(s) 2016 The Author(s)</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-9152b1bab42220030321d7c08b518e67b170d063c30e13e15aac3daab51578613</citedby><cites>FETCH-LOGICAL-c504t-9152b1bab42220030321d7c08b518e67b170d063c30e13e15aac3daab51578613</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5054520/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5054520/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27713541$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pompili, R.</creatorcontrib><creatorcontrib>Anania, M. 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P.</au><au>Bisesto, F.</au><au>Botton, M.</au><au>Castellano, M.</au><au>Chiadroni, E.</au><au>Cianchi, A.</au><au>Curcio, A.</au><au>Ferrario, M.</au><au>Galletti, M.</au><au>Henis, Z.</au><au>Petrarca, M.</au><au>Schleifer, E.</au><au>Zigler, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Femtosecond dynamics of energetic electrons in high intensity laser-matter interactions</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2016-10-07</date><risdate>2016</risdate><volume>6</volume><issue>1</issue><spage>35000</spage><epage>35000</epage><pages>35000-35000</pages><artnum>35000</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>Highly energetic electrons are generated at the early phases of the interaction of short-pulse high-intensity lasers with solid targets. 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| subjects | 639/766/1960/1135 639/766/1960/1137 Electrons Energy charge Humanities and Social Sciences Lasers Magnetic fields multidisciplinary Science |
| title | Femtosecond dynamics of energetic electrons in high intensity laser-matter interactions |
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