Influence of the Power of Laser on Nonlinear Optical Characteristics of Stable Platinum Nanoparticles
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 5, Issue 11
Abstract
The thermo-optical properties of platinum nanoparticles in the aqueous solution of sodium dodecyl sulfate (SDS) are investigated under irradiation of a continuous wave (CW) laser at 532 nm. These properties are studied using Z-scan technique. In this technique, transmittance of the laser beam by the sample is measured. The closed Z-scan measurements reveal thermal contribution for the nonlinear refractive index of the platinum nanoparticles. It is investigated the Z-scan behavior based on nonlocal thermo-optic process. It will be shown that the aberrant thermal lens model is in excellent agreement with the experimental results of the sample. A fit has allowed extracting the value of nonlinear refractive index to be -1.08×10-8cm2/W. The results suggest that thermal effects will play an important role in the development of photonic application involving metal nanoparticle suspension and in the investigation of nonlocal nonlinear processes.
Authors and Affiliations
M. Eslamifar| Physics Department, BehbahanKhatamAl-Anbia University of Technology, Behbahan, Iran, email: eslamifar@bkatu.ac.ir
Keywords
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