Abstract
This paper is a report on the synthesis of composite Au/TiO2 nanoparticles (NPs) using a novel and chemically clean method by ablating a gold target immersed in colloidal TiO2 NPs using 1064 nm Nd:YAG laser pulses. Further, the NPs were characterized through ultraviolet–visible spectroscopy, transmission electron microscopy, x-ray diffraction, and x-ray photoelectron spectroscopy. In addition, the nonlinear optical response of the synthesized samples was studied under continuous wave He–Ne laser irradiation.
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