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Nonlinear optical properties of ionic magnetic colloids in the femto- and milli...
Soga, Diogo; Alves, Sarah; Campos, Alex Fabiano Cortez; Tourinho, Francisco Augusto; Depeyrot, Jérôme; Figueiredo Neto, Antonio Martins7 f. : il.; The Z-scan technique is used to measure the nonlinear refractive index n2 and the nonlinear absorption coefficient β of ionic magnetic colloids as a function of the nanoparticles’ diameter (Drx) in the femto- and millisecond time-scale regimes. A change from a convergent-lens type (at a femtosecond time scale) to a divergent-lens type behavior (at a millisecond time scale) is observed. From the valu...
Date: 2010
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Origin: Oasisbr
Study of the lens-type behavior of magnetic colloids in the femtosecond time scale
Alves, Sarah
Date: 2009
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Origin: Oasisbr