Author/Authors :
Khan، نويسنده , , Sadia Afrin and Senapati، نويسنده , , Dulal and Senapati، نويسنده , , Tapas and Bonifassi، نويسنده , , P. and Fan، نويسنده , , Zhen and Singh، نويسنده , , Anant Kumar and Neeley، نويسنده , , Adria and Hill، نويسنده , , Glake and Ray، نويسنده , , Paresh Chandra، نويسنده ,
Abstract :
Using solution-based method, silver quantum clusters of different sizes (Ag20, Ag140 and Ag980) have been synthesized and their first hyper-polarizabilities were measured using hyper-Rayleigh scattering technique. We have shown that nonlinear optical properties of silver quantum cluster are highly dependent on the size of quantum cluster. Time-dependent density functional theory calculations using the Amsterdam Density Functional (ADF) program package are used to evaluate linear and nonlinear optical properties of silver tetrahedral Agn (n = 10, 20, 35, 56) clusters. Both theoretical and experimental data have shown that nonlinear as well as linear optical properties are highly dependent on the size of silver quantum cluster.
