Abstract

In this study, gold nanoparticles dispersed in poly(methyl methacrylate) were prepared by ablation with a 532 nm laser at different ablation times of 10, 20, and 30 min. The formation of gold nanoparticles in poly(methyl methacrylate) solution was confirmed using ultraviolet-visible spectroscopy, and their size and concentration were estimated using a dynamic light scattering method and atomic absorption spectroscopy, respectively. Linear optical studies indicated a slight blue shift in the surface resonance plasmon of the absorption wavelength with the increase of ablation time. The nonlinear optical properties of the nanocolloids were investigated by using a continuous wave of the 532 nm diode laser with a beam power of 40 mW in the Z-scan technique. All investigated samples showed negative and large thermally induced nonlinear refractive indices. The results confirm that the nonlinear refractive index increases with the increase in ablation time.

© 2019 Optical Society of America

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription