Mapping giant magnetic fields around dense solid plasmas by high resolution magneto-optical microscopy

Details Mapping giant magnetic fields around dense solid plasmas by high resolution magneto-optical microscopy Mapping giant magnetic fields around dense solid plasmas by high resolution magneto-optical microscopy

2007-10-04

arxiv.org/abs/0710.0932v1

Physics

Condensed Matter

Other Condensed Matter

17 pages of text with 4 figures

Scientific paper

10.1103/PhysRevE.77.046118

We investigate distribution of magnetic fields around dense solid plasmas generated by intense p-polarized laser (~10^{16} W.cm^{-2}, 100 fs) irradiation of magnetic tapes, using high sensitivity magneto optical microscopy. We present evidence for giant axial magnetic fields and map out for the first time the spatial distribution of these fields. By using the axial magnetic field distribution as a diagnostic tool we uncover evidence for angular momentum associated with the plasma. We believe this study holds significance for investigating the process under which a magnetic material magnetizes or demagnetizes under the influence of ultrashort intense laser pulses.

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