We simulated the extinction spectra of Ag-Au alloyed nanoparticles produced by pulsed laser ablation in liquid of elemental targets followed by re-irradiation of suitable mixtures of the obtained colloidal suspensions. When we make use of the optical constants of Ag-Au alloys, our theoretical approach, developed in the framework of the T-matrix formalism, accurately reproduces the experimental features of the extinction spectra of laser-produced nanoalloys with compositions that span the entire composition range (Ag25Au75, Ag50Au50, and Ag75Au25).

On the Optical Properties of Ag-Au Colloidal Alloys Pulsed Laser Ablated in Liquid: Experiments and Theory

Fazio E.
Primo
;
Saija R.
Secondo
;
Santoro M.;Neri F.;
2020

Abstract

We simulated the extinction spectra of Ag-Au alloyed nanoparticles produced by pulsed laser ablation in liquid of elemental targets followed by re-irradiation of suitable mixtures of the obtained colloidal suspensions. When we make use of the optical constants of Ag-Au alloys, our theoretical approach, developed in the framework of the T-matrix formalism, accurately reproduces the experimental features of the extinction spectra of laser-produced nanoalloys with compositions that span the entire composition range (Ag25Au75, Ag50Au50, and Ag75Au25).
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11570/3182924
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