Effect of relativistic plasma on extreme-ultraviolet harmonic emission from intense laser-matter interactions

K. Krushelnick, W. Rozmus, U. Wagner, F.N. Beg, S.G. Bochkarev, E.L. Clark, A.E. Dangor, R.G. Evans, A. Gopal, H. Habara, S.P.D. Mangles, P.A. Norreys, A.P.L. Robinson, M. Tatarakis, M.S. Wei, Matthew Zepf

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Abstract

Experiments were performed in which intense laser pulses (up to 9x10(19) W/cm(2)) were used to irradiate very thin (submicron) mass-limited aluminum foil targets. Such interactions generated high-order harmonic radiation (greater than the 25th order) which was detected at the rear of the target and which was significantly broadened, modulated, and depolarized because of passage through the dense relativistic plasma. The spectral modifications are shown to be due to the laser absorption into hot electrons and the subsequent sharply increasing relativistic electron component within the dense plasma.
Original languageEnglish
Article number125005
JournalPhysical Review Letters
Volume100
Issue number12
DOIs
Publication statusPublished - 28 Mar 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Krushelnick, K., Rozmus, W., Wagner, U., Beg, F. N., Bochkarev, S. G., Clark, E. L., Dangor, A. E., Evans, R. G., Gopal, A., Habara, H., Mangles, S. P. D., Norreys, P. A., Robinson, A. P. L., Tatarakis, M., Wei, M. S., & Zepf, M. (2008). Effect of relativistic plasma on extreme-ultraviolet harmonic emission from intense laser-matter interactions. Physical Review Letters, 100(12), [125005]. https://doi.org/10.1103/PhysRevLett.100.125005