论文信息 - Cubic Nonlinear Optical Properties of Ag Nanoparticles and Ag/Au Coreshells

Cubic Nonlinear Optical Properties of Ag Nanoparticles and Ag/Au Coreshells

Cubic nonlinear optical properties of spherical Ag nanoparticles (NPs) and Ag/Au coreshells have been investigated using a polarization-resolved degenerate four-wave mixing technique in a near resonant region. The averaged second hyperpolarizabilities of Ag NPs and Ag/Au coreshells were estimated to be ~8.12×10-38 m5/V2 and ~1.77×10-38 m5/V2, and ~1.28×10-39 m5/V2 and ~9.41×10-40 m5/V2 for parallel DFWM and orthogonal DFWM, respectively.

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