Abstract

Recently, the inclusion of metal nanoparticles in organic materials has developed a wide branch of novel optical properties. Indeed, the original properties of the organic materials can be drastically modified. Nakao¹ has found a method for preparing metal solid sols such as palladium, platinum, silver and gold in Poly(methyl methacrylate) (PMMA), which can be obtained simply by polymerizing the mixture of monomer and corresponding metal compound, followed by post-heating. In this work we investigated linear and nonlinear optical properties of three Ag nanoclusters in PMMA films with different Ag concentrations and different heating treatment². The sample #1 had an Ag concentration of 30 μ mol and it was in the oven 120 min at 120°C, the concentration of the sample # 2 was 10 μ mol and 90 min at 120°C and finally the sample # 3 had 50 μ mol and 120 min at the same temperature.

© 2000 IEEE