Date of Award
Open Access Thesis
Master of Science (MS)
Mohamed Amine Gharbi
Gold nanoparticles come in various sizes and shapes. Their optical properties arise from surface plasmon resonance, collective excitation/oscillation of conduction electrons. The study of the nonlinear optical properties of these materials is essential for photonic and biomedical applications. In this thesis, nonlinear optical properties of gold nanoparticles dispersed in the nematic liquid crystal were studied using optical and photoacoustic Z-scan techniques. Results show enhanced nonlinearity when gold is dispersed in planar-oriented 5CB liquid crystals compared to when liquid crystals were not oriented (degenerate). Also, sample with low gold concentration, by weight percentage, shows the better nonlinearity. Reasons behind the influence of the nonlinear effect and future plans were also discussed.
Fu, Changshuo, "Study of Nonlinear Optical Properties of Gold Nanoparticles Dispersed in Nematic Liquid Crystals" (2021). Graduate Masters Theses. 699.