Higher-Order Harmonic Generation from Fullerene by Means of the Plasma Harmonic Method
R. A. GaneevInstitut National de la Recherche Scientifique, Energie, Matériaux et Télécommunications, 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, CanadaL. B. Elouga BomInstitut National de la Recherche Scientifique, Énergie, Matériaux et Télécommunications, 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, CanadaJ. Abdul-HadiInstitut National de la Recherche Scientifique, Énergie, Matériaux et Télécommunications, 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, CanadaM. C. H. WongDepartment of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, CanadaJ.-P. BrichtaDepartment of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, CanadaV. R. BhardwajDepartment of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, CanadaT. OzakiInstitut National de la Recherche Scientifique, Énergie, Matériaux et Télécommunications, 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
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We demonstrate, for the first time, high-order harmonic generation from C60 by an intense femtosecond Ti:sapphire laser. Laser-produced plasmas from C60-rich epoxy and C60 films were used as the nonlinear media. Harmonics up to the 19th order were observed. The harmonic yield from fullerene-rich plasma is about 25 times larger compared with those produced from a bulk carbon target. Structural studies of plasma debris confirm the presence and integrity of fullerenes within the plasma plume, indicating fullerenes as the source of high-order harmonics.
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