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Title: Pencil lead plasma for generating multimicrojoule high-order harmonics with a broad spectrum

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.3558999· OSTI ID:21518308
; ;  [1];  [2]
  1. Institut National de la Recherche Scientifique, Energie, Materiaux, Telecommunications, 1650 Boulevard Lionel-Boulet, Varennes, Quebec J3X 1S2 (Canada)
  2. Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5 (Canada)

Using the plasma harmonic method, we show the generation of efficient and intense high-order harmonics from plasma of pencil lead. We demonstrate multimicrojoule energy in each harmonic order for the 11th to the 17th order of a Ti:sapphire laser. By analyzing the target morphology and the plasma composition, we conclude that these intense harmonics are generated from nanoparticles of graphitic carbon.

OSTI ID:
21518308
Journal Information:
Applied Physics Letters, Vol. 98, Issue 10; Other Information: DOI: 10.1063/1.3558999; (c) 2011 American Institute of Physics; ISSN 0003-6951
Country of Publication:
United States
Language:
English