Measurement of Nonlinear Optical Responses of Ag Thin Films

In this paper we report the preparation of silver nanoparticle thin films by cylindrical direct current reactive magnetron sputtering (at 10-5 torr initial pressure) and characterization of their nonlinear optical properties. BK7 glasses were selected as substrate. Nonlinear optical response of silver nanoparticle thin films was measured by moiré deflectometry technique using 15 mW He-Ne laser illuminations. All fabricated silver nanoparticle thin films were evaluated using atomic force microscopy and spectrophotometry (from visible region to near infrared region).