{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,12]],"date-time":"2026-04-12T05:17:15Z","timestamp":1775971035295,"version":"3.50.1"},"reference-count":21,"publisher":"AIP Publishing","issue":"8","license":[{"start":{"date-parts":[[2014,2,28]],"date-time":"2014-02-28T00:00:00Z","timestamp":1393545600000},"content-version":"vor","delay-in-days":4,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"},{"start":{"date-parts":[[2014,2,28]],"date-time":"2014-02-28T00:00:00Z","timestamp":1393545600000},"content-version":"tdm","delay-in-days":4,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2014,2,24]]},"abstract":"<jats:p>An all-optical approach to laser-proton acceleration enhancement is investigated using the simplest of target designs to demonstrate application-relevant levels of energy conversion efficiency between laser and protons. Controlled deposition of laser energy, in the form of a double-pulse temporal envelope, is investigated in combination with thin foil targets in which recirculation of laser-accelerated electrons can lead to optimal conditions for coupling laser drive energy into the proton beam. This approach is shown to deliver a substantial enhancement in the coupling of laser energy to 5\u201330\u2009MeV protons, compared to single pulse irradiation, reaching a record high 15% conversion efficiency with a temporal separation of 1 ps between the two pulses and a 5\u2009\u03bcm-thick Au foil. A 1D simulation code is used to support and explain the origin of the observation of an optimum pulse separation of \u223c1 ps.<\/jats:p>","DOI":"10.1063\/1.4865812","type":"journal-article","created":{"date-parts":[[2014,3,1]],"date-time":"2014-03-01T16:09:40Z","timestamp":1393690180000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":65,"title":["High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets"],"prefix":"10.1063","volume":"104","author":[{"given":"C. M.","family":"Brenner","sequence":"first","affiliation":[{"name":"Department of Physics, SUPA, University of Strathclyde 1 , Glasgow G4 0NG, United Kingdom"},{"name":"Central Laser Facility, STFC, Rutherford Appleton Laboratory 2 , Didcot, Oxon OX11 0QX, United Kingdom"}]},{"given":"A. P. L.","family":"Robinson","sequence":"additional","affiliation":[{"name":"Central Laser Facility, STFC, Rutherford Appleton Laboratory 2 , Didcot, Oxon OX11 0QX, United Kingdom"}]},{"given":"K.","family":"Markey","sequence":"additional","affiliation":[{"name":"Central Laser Facility, STFC, Rutherford Appleton Laboratory 2 , Didcot, Oxon OX11 0QX, United Kingdom"}]},{"given":"R. H. H.","family":"Scott","sequence":"additional","affiliation":[{"name":"Central Laser Facility, STFC, Rutherford Appleton Laboratory 2 , Didcot, Oxon OX11 0QX, United Kingdom"}]},{"given":"R. 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R.","family":"Davies","sequence":"additional","affiliation":[{"name":"Laboratory for Laser Energetics, Fusion Science Center for Extreme States of Matter, University of Rochester 6 , Rochester, New York 14623, USA"}]},{"given":"S. M.","family":"Hassan","sequence":"additional","affiliation":[{"name":"Department of Electronics Engineering 7 , , 73133 Chania, 74100 Rethymno, Crete, Greece"},{"name":"Centre for Plasma Physics and Lasers 7 , , 73133 Chania, 74100 Rethymno, Crete, Greece"}]},{"given":"K. L.","family":"Lancaster","sequence":"additional","affiliation":[{"name":"Central Laser Facility, STFC, Rutherford Appleton Laboratory 2 , Didcot, Oxon OX11 0QX, United Kingdom"}]},{"given":"K.","family":"Li","sequence":"additional","affiliation":[{"name":"GoLP, Instituto de Plasmas e Fusao Nuclear-Laboratrio Associado, Instituto Superior Tecnico 8 , 1049-001 Lisboa, Portugal"}]},{"given":"I. 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