Abstract
Bismuthate glass embedded with silver nanoparticles was synthesized by a single step melt-annealing method. Absorption spectra measurement confirmed the formation of silver nanoparticles by their surface plasmon resonance absorption band that appears at 668nm. Third-order nonlinear performance of the nanocomposite was evaluated in the aspects of space and time by Z-scan and optical Kerr shutter techniques respectively at near infrared region of 800nm. The surface plasmon enhanced third-order nonlinear behaviors with Kerr response below 1ps are observed, which demonstrate the potential of such material in applications of Kerr effect based switching devices.
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