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Revealing the nanoparticles aspect ratio in the glass-metal nanocomposites irradiated with femtosecond laser.

ABSTRACT: We studied a femtosecond laser shaping of silver nanoparticles embedded in soda-lime glass. Comparing experimental absorption spectra with the modeling based on Maxwell Garnett approximation modified for spheroidal inclusions, we obtained the mean aspect ratio of the re-shaped silver nanoparticles as a function of the laser fluence. We demonstrated that under our experimental conditions the spherical shape of silver nanoparticles changed to a prolate spheroid with the aspect ratio as high as 3.5 at the laser fluence of 0.6 J/cm2. The developed approach can be employed to control the anisotropy of the glass-metal composites.

SUBMITTER: Chervinskii S

PROVIDER: S-EPMC4562248 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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