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Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/123456789/3960

Título : I-scan thermal lens experiment in the pulse regime for measuring two-photon absorption coefficient
Autor : Rodríguez, L.
Echevarria, L.
Fernández, Alberto
Palabras clave : I-scan
thermal
lens
measuring
absorption
coefficient
Fecha de publicación : 2007
Editorial : Optics Communications
Citación : ;277
Resumen : We present a new pump-probe mode-mismatched thermal lens method for pulse excitation aimed to the measurement of nonlinear absorption coefficient in optical materials. We develop a theoretical model based on the Fresnel diffraction approximation and their predictions are verified experimentally with samples of Rhodamine 6G and Rhodamine B in ethanol solution. The principal advantage of this technique is that it does not require any mechanical movement during measurement. Below we perform the new type of thermal lens experiment in the pulse regime for the measurement of nonlinear absorption coefficient in transparent samples and we demonstrate the validity of theoretical predictions using an alternative method to the classical thermal lens technique.
URI : http://saber.ucv.ve/jspui/handle/123456789/3960
ISSN : 0030-4018
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