Nonlinear optical properties of Ag nanoparticles with and without silicon dioxide shell
Source abstract
Abstract
Abstract The features of a nonlinear optical response of the spherical silver nanoparticles with an average size of 20 nm and “core-shell” systems based on them (Ag@SiO2) synthesized using the citrate method in the field of nanosecond pulses of the second harmonic of Nd:YAG laser (532 nm) are studied. It is shown that the presence of a SiO2 shell blocks the saturable absorption that occurs due to the photodestruction of silver nanoparticles. The formation of a positive dynamic lens for the Ag@SiO2, which is not typical for the original silver nanoparticles, was detected. An assumption is made about the capture of photo-excited charge carriers by the SiO2 shell.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nonlinear Optical Materials Studies · Laser-Ablation Synthesis of Nanoparticles · Gold and Silver Nanoparticles Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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