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Second-harmonic response of multilayer nanocomposites of silver-decorated nanoparticles and silica

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Details

Original languageEnglish
Article number5745
Pages (from-to)1-6
Number of pages6
JournalScientific Reports
Volume4
DOIs
Publication statusPublished - 2014
Publication typeA1 Journal article-refereed

Abstract

We perform a detailed characterisation of the second-order nonlinear optical response of nanocomposites consisting of alternating layers of silver-decorated silica glass nanoparticles and pure silica glass. The samples are fabricated using aerosol techniques and electron-beam dielectric coating, resulting in a bulk-like material with symmetry-breaking induced by the porosity of the alternating layers. The second-order nonlinear response increases with the number of layers. Further, by determining the components of the second-order susceptibility tensor of the samples, we show that the structural properties of the samples are well maintained as the sample thickness is increased. Our results form an important baseline for any further optimization of these types of structures, which can be fabricated using very straightforward methods.

Publication forum classification

Field of science, Statistics Finland