Tyrk, Mateusz A. and Zolotovskaya, Svetlana A. and Gillespie, W. Allan and Abdolvand, Amin (2015) Radially and azimuthally polarized laser induced shape transformation of embedded metallic nanoparticles in glass. Optics Express, 23 (18). pp. 23394-23400. ISSN 1094-4087
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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.