Phys. Rev. A 60, R777 - R780 (1999)Highly efficient high-order harmonic generation by metallic carbon nanotubes |
G. Ya. Slepyan1, S. A. Maksimenko1, V. P. Kalosha1,2, J. Herrmann2, E. E. B. Campbell3, and I. V. Hertel2
1Institute for Nuclear Problems, Belarus State University, Bobruiskaya 11, 220050 Minsk, Belarus
2Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max-Born-Straße 2a, D-12489 Berlin, Germany
3Göteborg University and Chalmers University of Technology, S-41296, Göteborg, Sweden
Received 20 April 1999
High-order harmonic generation by metallic carbon nanotubes exposed to an intense ultrashort pulse has been theoretically investigated in the semiclassical approximation. The mechanism of nonlinearity provided by the motion of conduction electrons below the band of optical resonances has been considered. It has been shown that the high density of states of conduction electrons in metallic carbon nanotubes and the specific dispersion law inherent in hexagonal crystalline structure as well as the transverse quantization of the electron momentum result in a uniquely high efficiency of the current conversion to high-order harmonics.
©1999 The American Physical Society
URL: http://link.aps.org/abstract/PRA/v60/pR777
DOI: 10.1103/PhysRevA.60.R777
PACS: 42.65.Ky
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