Abstract
Nonlinear optical properties of colloidal systems containing single wall carbon nanotubes (SWNT) disperse in different surfactants are investigated. Thermal nonlinearity management Z-scan technique was performed to measure the nonlinear refractive index (n2) of colloidal system. The results presented in this letter show that the presence of SWNT enhances significantly the electronic nonlinear responses of the colloid and that the surfactants play an important role in the determination of electronic part of n2.
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