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Ultrafast Electron Radiography of Magnetic Fields in High-Intensity Laser-Solid Interactions

Research output: Contribution to journalJournal article

  • W. Schumaker
  • N. Nakanii
  • C. McGuffey
  • C. Zulick
  • V. Chyvkov
  • F. Dollar
  • H. Habara
  • G. Kalintchenko
  • A. Maksimchuk
  • K. A. Tanaka
  • A. G. R. Thomas
  • V. Yanovsky
  • K. Krushelnick
Article number015003
<mark>Journal publication date</mark>2/01/2013
<mark>Journal</mark>Physical review letters
Issue number1
Number of pages5
Publication statusPublished
Original languageEnglish


Using electron bunches generated by laser wakefield acceleration as a probe, the temporal evolution of magnetic fields generated by a 4 X 10(19) W/cm(2) ultrashort (30 fs) laser pulse focused on solid density targets is studied experimentally. Magnetic field strengths of order B-0 similar to 10(4) T are observed expanding at close to the speed of light from the interaction point of a high-contrast laser pulse with a 10-mu m-thick aluminum foil to a maximum diameter of similar to 1 mm. The field dynamics are shown to agree with particle-in-cell simulations. DOI: 10.1103/PhysRevLett.110.015003