20 August 2009 Optical nonlinearity of liquid nanosuspensions: Kerr versus exponential model
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We report our experimental and theoretical progress towards elucidating the nonlinear optical response of nanosuspensions. To date, we have devised a fiber-optic variant of the Z-scan method to accurately measure the nonlinearity of liquid nanosuspensions. Furthermore, we shall show that the optical nonlinearity may be properly accounted theoretically by including both the virial coefficients for the soft-condensed matter system in addition to the exponential term, which does not account for particleparticle interactions, yielding an effective or renormalized Kerr effect in many cases.
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E. M. Wright, W. M. Lee, K. Dholakia, R. El-Ganainy, D. N. Christodoulides, "Optical nonlinearity of liquid nanosuspensions: Kerr versus exponential model", Proc. SPIE 7400, Optical Trapping and Optical Micromanipulation VI, 74001J (20 August 2009); doi: 10.1117/12.825865; https://doi.org/10.1117/12.825865

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