Femtosecond spectrotemporal magneto-optics |
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| Authors: | Bigot J-Y Guidoni L Beaurepaire E Saeta P N |
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| Affiliation: | Institut de Physique et Chimie des Matériaux de Strasbourg, Unité Mixte CNRS-ULP-ECPM, 23 rue du Loess, B.P. 43, 67034 Strasbourg Cedex, France. Jean-Yves.Bigot@ipcms.u-strasbg.fr |
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| Abstract: | A new method to measure and analyze the time and spectrally resolved polarimetric response of magnetic materials is presented. It allows us to study the ultrafast magnetization dynamics of a CoPt3 ferromagnetic film. The analysis of the pump-induced rotation and ellipticity detected by a broad spectrum probe beam shows that magneto-optical signals predominantly reflect the spin dynamics in ferromagnets. |
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