GUARINO , Alessio

International audience

We study the Faraday instability in an elongated rectangular cell and for a range of the forcing frequency for which two nearly degenerate modes enter in competition. We investigate the stability properties of the two modes and we show that they can either coexist in a bistable way or give rise to a mixed mode. We develop a simple model based...

We present an experimental method for measuring the nonlinear optical response of a dye-doped liquid crystal cell. We show that a very large response is obtained for a very low input light intensity. The nonlinear optical response as a function of the dye concentration in the liquid crystal host is characterized by the optical nonlinear...

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