Optical nonlinearities in silver nanocluster in poly(methyl methacrylate)

Summary form only given. 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. Nakao 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 treatments.