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Radially and azimuthally polarized laser induced shape transformation of embedded metallic nanoparticles in glass

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<mark>Journal publication date</mark>27/08/2015
<mark>Journal</mark>Optics Express
Issue number18
Volume23
Number of pages7
Pages (from-to)23394-23400
Publication statusPublished
Original languageEnglish

Abstract

Radially and azimuthally polarized picosecond (~10 ps) pulsed laser irradiation at 532 nm wavelength led to the permanent reshaping of spherical silver nanoparticles (~30 – 40 nm in diameter) embedded in a thin layer of soda-lime glass. The observed peculiar shape modifications consist of a number of different orientations of nano-ellipsoids in the cross-section of each written line by laser. A Second Harmonic Generation crosssectional scan method from silver nanoparticles in transmission geometry
was adopted for characterization of the samples after laser modification. The presented approach may lead to sophisticated marking of information in metal-glass nanocomposites.

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© 2015 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.