A comprehensive study of the nonlinear optical response exhibited by ion-implanted silica plates with Au and Pt nanostructures
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Date
2021
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Abstract
Third -order nonlinear optical properties exhibited by Platinum nanoclusters and Gold nanoparticles integrated in a two -stage configuration are reported. Comparative nanostructures were nucleated in a monolithic complex platform form based on a single matrix by a dual ion -implantation process and a reduction in the ablation threshold from 2.2 J/cm2 to 1.2 J/cm2 was obtained. This modification in the photothermal response exhibited by the nanoparticles seems to derive from a fractional transfer of energy. Femtosecond z -scan measurements at 800 nm revealed a strong two -photon absorption in the dual -implanted sample together to an ultrafast electronic nonlinearity responsible for a self -defocusing effect. These findings highlight the potential for tailoring quantum systems by integration of hybrid photonic circuits using multi -implantation processes.
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Keywords
Nonlinear optics, Optical Kerr effect, Metallic clusters, Ion -implantation, Quantum dots