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Description
In this study, the characterization of the gold nanoparticles (AuNP) produced by exposing 1 g gold bulk in deionized water to the nanosecond laser was made and investigated. The nanoparticles produced with the help of the panel controlled by the servo motor controller, which are moved at same velocities in the optical setup, were examined. Gold nanoparticles (AuNP) are produced using a Q-switched Nd:YAG laser in deionized water via 266 - 355 - 532 - 1064 nm nanosecond laser ablation. Gaussian and Bessel Beams were generated using a convex lens with a focal length of 200 mm and axicon with a base angle of 1°, respectively. It was aimed to characterize and compare the nanoparticles produced at different wavelengths by creating Gaussian and Bessel Beams. SEM and Particle Size Analyzer (Zetasizer) images are used to verify AuNP size distributions. The absorbance is also investigated by UV-Vis Spectrometer. Numerous enhancements about the results from previous study and more detailed comparison is added.
