Studies of Optical and Magnetic responses of iron Nanoparticles obtained by femtosecond laser ablation

D. MUÑETÓN; J. M. J. SANTILLÁN; D. C. SCHINCA; L. B. SCAFFARDI

Washington D. C.

Congreso; Frontiers in Optics and Laser Science 2017; 2017

Optical Society of America

Pulsed laser ablation of solids in liquids has emerged in the last years as a reliable, rapid and ?green? method for preparing NPs in suspensions which, in general, are spherical in shape [1, 2]. In this work, we study the optical and magnetic properties of iron colloids produced by ultrashort pulse femtosecond laser ablation of a solid Fe target immersed in water and ethanol. The suspensions were analyzed with UV-visible Optical Extinction Spectroscopy (OES), Micro-Raman Spectroscopy and Vibrating Sample Magnetometer (VSM).