Microstructural and Z-scan measurement of silver nanoparticles

Sivakami, R.; Dhanuskodi, S.

doi:10.1016/j.apsusc.2015.06.043

Cited by 9 publications

(2 citation statements)

References 23 publications

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“…4 show decrease in transmittance at focus is the characteristic signature of reverse saturable absorption (RSA) or positive nonlinear absorption. Reverse saturable absorption can be attributed to either the excitation from surface Plasmon resonance band to the free carrier band in the particle [21,22]. A classical energy level model was proposed to explain the nonlinear absorption of materials.…”

Section: Z Scan Measurementsmentioning

confidence: 99%

Nonlinear optical properties of zinc oxide doped bismuth thin films using Z-scan technique

et al. 2016

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Section: Z Scan Measurementsmentioning

confidence: 99%

Nonlinear optical properties of zinc oxide doped bismuth thin films using Z-scan technique

et al. 2016

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“…The two-photon absorption process has also been reported as a dominant mechanism for the observed nonlinearity in Ag NPs [21]. The measured value of the Ag/SiO 2 nanocomposite two-photon absorption coefficient is compared with recently reported values of the two-photon absorption of different materials [13,[22][23][24][25][26] and are listed in table 1. By adding the SiO 2 NPs into the Ag NPs colloid, the nonlinear absorption coefficient can be improved.…”

Section: Resultsmentioning

confidence: 75%

Green synthesis of silver/silica nanocomposite in seconds at room temperature using reducing agents obtained from silicon nanoparticles

Taheri¹

2018

Laser Phys.

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In this work, we present a single step, highly stable, energy efficient, green and economically scalable room temperature method for the synthesis of silver/silica (Ag/SiO 2 ) nanocomposite. The Ag/SiO 2 nanocomposites are synthesized from silver nitrate solution using extracts of silicon nanoparticles. The silicon nanoparticles, which are prepared through the laser ablation of silicon in ethanol with polyvinylpyrrolidone,are used as the reducing agent. The nanocomposites have been characterized by ultraviolet-visible spectroscopy, x-ray diffraction pattern and Fourier transform infrared spectrum. The ultraviolet-visible absorption spectrum of the colloidal nanocomposites shows a surface plasmon peak at 424 nm. The x-ray diffraction pattern of Ag/SiO 2 nanocomposite powder only contains silver structures, and thus SiO 2 nanoparticles are amorphous. The nonlinear properties of Ag/SiO 2 colloidal nanocomposite solution are studied using the Z-scan method. The value of the nonlinear absorption is measured as 17 × 10 −3 cm W −1 with a positive sign, which illustrates the two photon absorption phenomena. The Ag/SiO 2 nanocomposite shows a large nonlinear absorption near the surface plasmon resonance frequency of Ag nanoparticles.

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Fabrication of Cu@Ag core–shell nanoparticles for nonlinear optical applications

Sakthisabarimoorthi

Jose

Dhas

et al. 2016

J Mater Sci: Mater Electron

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Microstructural and Z-scan measurement of silver nanoparticles

Cited by 9 publications

References 23 publications

Nonlinear optical properties of zinc oxide doped bismuth thin films using Z-scan technique

Nonlinear optical properties of zinc oxide doped bismuth thin films using Z-scan technique

Green synthesis of silver/silica nanocomposite in seconds at room temperature using reducing agents obtained from silicon nanoparticles

Fabrication of Cu@Ag core–shell nanoparticles for nonlinear optical applications

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