Abstract
A series of silver () nanoclusters embedded in bismuthate glasses () were synthesized by the thermochemical reduction method. When was substituted with , the refractive index of the encapsulating medium increased, leading to redshifting of the surface plasmon resonance (SPR) absorption band of , which was initially located at . Z-scan measurements with femtosecond laser pulses at showed that third-order optical nonlinearities (TONs) were significantly enhanced in the SPR redshifted samples, and calculation of the figure of merit manifested excellent performances of present -bismuthate nanocomposites for TON-based all-optical switching.
© 2011 Optical Society of America
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