Phys. Rev. Lett. 95, 047401 (2005) [4 pages]Optical High Harmonic Generation in C60Received 20 July 2004; published 19 July 2005 High harmonic generation (HHG) requires a strong laser field, but in C60 a relatively weak laser field is sufficient. Numerical results presented here show that, while its low order harmonics result from the laser field, its high order ones are mainly from the multiple excitations. Since high order harmonics directly correlate with electronic transitions, the HHG spectrum accurately measures transition energies. Therefore, C60 is not only a promising material for HHG, but may also present an opportunity to develop HHG into an electronic structure probing tool. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.047401
DOI:
10.1103/PhysRevLett.95.047401
PACS:
78.66.Tr, 42.65.Ky
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