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Laser stimulated optical features of gold nanoparticles attached on ITO substrate

Authors
Journal
Physica E Low-dimensional Systems and Nanostructures
1386-9477
Publisher
Elsevier
Volume
44
Identifiers
DOI: 10.1016/j.physe.2012.01.008
Disciplines
  • Mathematics

Abstract

Abstract We have performed complex studies of regular sized gold nanoparticles (AuNPs), which were commercially available and attached on the surfaces of indium tin oxide (ITO) substrates with a cross-linker molecule, 3-aminopropyltrimethoxysilane. Using the hyperfine AFM methods including the surface topology we have classified three types of samples which are different by the sizes. We have studied their laser induced absorption and third harmonic generation versus the sizes of nanoparticles. The particular influence of size dispersion on the output optical and nonlinear optical effects are studied. The processes are explained within a framework of interactions between the surface Plasmon resonances and the inter-band transitions.

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