Abstract
We experimentally probed the nonlinear optical response of aqueous nano-colloidal suspensions to provide a test of the theoretical approaches that have been proposed for the nonlinearity, namely an exponential model, an artificial Kerr medium, and a non-ideal gas model. The best agreement with experiment is found using the non-ideal gas model for the colloidal suspension which in turn can be used to infer values for the second virial coefficient of the medium and the nonlinear coefficients.
Original language | English |
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Pages (from-to) | 10277-10289 |
Number of pages | 13 |
Journal | Optics Express |
Volume | 17 |
Issue number | 12 |
DOIs | |
Publication status | Published - 8 Jun 2009 |
Externally published | Yes |