Phys. Rev. Lett. 102, 013903 (2009) [4 pages]Higher-Order Harmonic Generation from Fullerene by Means of the Plasma Harmonic MethodReceived 29 August 2008; published 5 January 2009 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. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.013903
DOI:
10.1103/PhysRevLett.102.013903
PACS:
42.65.Ky, 52.38.Mf, 78.67.Bf
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