Ref HAL: hal-00546637_v1
DOI: 10.1063/1.1808226
WoS: 000224658100078
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48 Citations
Résumé:

Femtosecond pump-probe experiments have been carried out on an ensemble of single-wall carbon nanotubes deposited on a glass substrate. Measurements of transient changes of transmission and reflection provide an estimate of the real and imaginary parts of the second-order hyperpolarizability of carbon nanotubes. These values are compared with previous measurements and are discussed in the light of a simple model of the optical nonlinearities near the optical band-gap. (C) 2004 American Institute of Physics.