Second harmonic generation from silver nanoparticles in aqueous solution with different protective agents

Hoang Minh Ngo; Isabelle Ledoux-Rak

doi:10.1117/12.2064663

27 August 2014 Second harmonic generation from silver nanoparticles in aqueous solution with different protective agents

Hoang Minh Ngo, Isabelle Ledoux-Rak

Author Affiliations +

Proceedings Volume 9171, Nanobiosystems: Processing, Characterization, and Applications VII; 91710Y (2014) https://doi.org/10.1117/12.2064663
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

Nanometer-sized metallic colloidal particles with plasmonic resonances in the visible range are widely investigated for their attractive optical properties as sensors, for imaging and cancer treatment. Their second-order nonlinear optical properties are remarkably high. In this work, silver colloidal solutions have been synthesized by a simple and quick method in aqueous solutions with different protective agents (PVA, PVP). The first hyperpolarizability β values of Ag per atom and per particle for nanospheres at 1064 nm have been measured. Silver nanoparticles, which possess intense visible region surface plasmon absorption bands, prove to be excellent nonlinear scatterers.

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Hoang Minh Ngo and Isabelle Ledoux-Rak "Second harmonic generation from silver nanoparticles in aqueous solution with different protective agents", Proc. SPIE 9171, Nanobiosystems: Processing, Characterization, and Applications VII, 91710Y (27 August 2014); https://doi.org/10.1117/12.2064663

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KEYWORDS

Silver

Nanoparticles

Particles

Chemical species

Second-harmonic generation

Transmission electron microscopy

Harmonic generation

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