Role of surface roughness in hard-x-ray emission from femtosecond-laser-produced copper plasmas

P. P. Rajeev, S. Banerjee, A. S. Sandhu, R. C. Issac, L. C. Tribedi, G. R. Kumar

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Hard x-ray emission was investigated in the energy range of 30-300 keV from copper plasmas produced by 100-fs, 806-nm laser pulses at intensities in the range of 1015-1016 W cm-2. It was shown that surface roughness of the targets overrides the role of polarization state in the coupling of light to the plasma. Results also showed that the surface roughness has a significant role in enhancing the x-ray emission in the energy range of 30-300 keV.

Original languageEnglish (US)
Article number052903
Pages (from-to)529031-529035
Number of pages5
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume65
Issue number5
DOIs
StatePublished - May 2002
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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