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Optical limiting response of Ag 2 S nanoparticles synthesized by laser ablation of silver target in DMSO
Author(s) -
Aleali H.,
Sarkhosh L.,
Karimzadeh R.,
Mansour N.
Publication year - 2011
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201046107
Subject(s) - materials science , nanosecond , absorption (acoustics) , laser ablation , laser , transmission electron microscopy , analytical chemistry (journal) , nanoparticle , irradiation , scattering , laser ablation synthesis in solution , optics , nanotechnology , chemistry , x ray laser , laser power scaling , physics , chromatography , nuclear physics , composite material
Silver sulfide nanoparticles (Ag 2 S NPs) were synthesized by nanosecond pulsed laser ablation of a silver plate in dimethyl sulfoxide. Ultraviolet–visible absorption spectrometry, X‐ray diffraction, and transmission electron microscopy were used to characterize the obtained nanocrystal samples. The mechanisms for optical limiting performance of an Ag 2 S NP colloid were investigated under exposure to nanosecond pulsed laser irradiation at 532 nm. The observed aperture dependence of the Ag 2 S NP limiting performance indicates that the nonlinear scattering plays an important role in the limiting action of the sample. The Ag 2 S NPs may enhance the absorption of laser light by the two‐photon absorption process and induce a very high rise in the temperature of the sample, which leads to the formation of scattering centers.