Optical characterization of ZnO nanoplates embedded in polymeric matrices for optical limiting applications

摘要

We report on the optical characterization, including linear and non linear, of ZnO nanoplates embedded in PVA. Nonlinear optical characterization of these films was studied by the Z-scan technique using an Nd:YAG laser (532 nm, 7 ns, 10 Hz).The studies show that the material is highly nonlinear, have desirable lower optical liming threshold of 46.86 MW/cm~2 at pump power of 436 MW/cm~2 and with negative refractive index. Therefore, these films with immobilized semiconductor nanoplates appear to be attractive candidates for optical limiting applications.