The shape effect on the optical properties of metallic nanoparticles

Varyshchuk, V.; Bulavinets, Tetiana; Yaremchuk, Iryna; Bobitski, Yaroslav

doi:10.1109/tcset.2018.8336240

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…The nature of those two additional peaks revealed in the absorption spectra of the FG and FR samples can be associated with the optical behavior of triangular nanostructures, which are usually characterized by double localized plasmon resonance peaks with the meaningful difference in the intensity of the individual LSPR peaks. 36,37 In order to gain deeper insight into the experimental data, theoretical simulations on the LSPR peak positions for all Ag-NPs samples were performed using the freely available DDSCAT+ soware 38 based on the discrete dipole approximation (DDA) method. The DDA approach can be exploited for modelling the optical properties of arbitrary morphology nanostructures in comparison to the commonly used approach for exploring the light behavior based on Maxwell's theory, 12 which is used for nano-objects with limited simple geometries.…”

Section: Optical Properties Of Ag Nanoparticles and Theoretical Calcumentioning

confidence: 99%

Efficient NIR energy conversion of plasmonic silver nanostructures fabricated with the laser-assisted synthetic approach for endodontic applications

et al. 2020

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Section: Optical Properties Of Ag Nanoparticles and Theoretical Calcumentioning

confidence: 99%

Efficient NIR energy conversion of plasmonic silver nanostructures fabricated with the laser-assisted synthetic approach for endodontic applications

et al. 2020

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“…This accelerated DDA was verified by simulation to reduce computation time by several orders of magnitude in most cases [78]. DDA has been widely applied to scatterers of different shapes, such as triaxial ellipsoids [79], hexagonal prisms [80] and decahedra [81].…”

Section: ) Mom and Ddamentioning

confidence: 83%

A Comprehensive Review on Study Methods of Aerosol Optical Properties in Different Dimensions

2023

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A comprehensive understanding of the optical properties of atmospheric aerosol is essential for a variety of applications, such as optical imaging, optical communication, and remote sensing. In recent years, many theories and numerical simulation methods have been developed to connect aerosol physicalchemical properties to their intrinsic and integral optical properties. Usually, simulations and measurements are intertwined to synergistically attain the retrieval of aerosol optical properties and mitigate or even eliminate the adverse impacts of aerosol during imaging, sensing, or communication. This review covers the fundamental theories of aerosol optical properties, the development of numerical simulations, the instrumentbased sampling measurements, and the cutting-edge techniques of remote sensing. Numerical simulations have been progressing from symmetric particles to asymmetric particles over the past two decades, although any simulation method is limited by specific shape and a restricted size parameter range. Thus, this review also examines the most typical advances in aerosol instrumentation that are frequently used to measure the intrinsic optical properties of unknown aerosols. Such obtained properties validate simulations and constitute the basis of integral optical properties. In terms of practical applications, integral optical properties are the most critical knowledge about atmospheric aerosol. Remote sensing measurements, be it ground-based, airborne, or satellite-based, all retrieve integral optical properties of atmospheric aerosol from various perspectives, which are elaborated upon in this review. In conclusion, this review provides an allencompassing comprehension of aerosol optical properties.

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“…In our previous works we have studied in detail the effect of shape on the optical properties of individual silver nanoparticles [31] and silver-based nanoshells [32]. Moreover, we have compared the spectral characteristics of individual silver-based and gold-based nanoshells [33].…”

Section: Introductionmentioning

confidence: 99%

Surface-localized plasmon resonance in a system of randomly arranged gold nanorods on a dielectric substrate

Yaremchuk¹,

Pidluzhna²,

Stakhira³

et al. 2021

Ukr. J. Phys. Opt.

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Gold-nanorod arrays of a quasi-hexagonal shape are successfully obtained with electrochemical deposition method and their optical properties are investigated. The optical response of a two-layer structure, in which the first layer is a nanocomposite consisting of Au nanorods and the second one is a thin indium tin oxide film on a glass substrate, has been analyzed. Dependences of absorption crosssection of Au nanorods on the light wavelength at different eccentricities are modelled using electrostatic approximation. It is shown that longitudinal plasmon resonance prevails over other resonances for the Au nanorods deposited on glass substrates. A Maxwell−Garnett theory and a matrix method are used to predict the optical characteristics of the whole structure. We have demonstrated that it is possible to estimate the concentration of nanorods on the surface using the appropriate simulation results. In addition, efficient absorption properties can be obtained at a given wavelength by changing the geometry of nanorods. In particular, there is a shift of the absorption peak towards near-infrared region whenever the nanorods become high enough and smaller in diameter.

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The shape effect on the optical properties of metallic nanoparticles

Cited by 6 publications

References 14 publications

Efficient NIR energy conversion of plasmonic silver nanostructures fabricated with the laser-assisted synthetic approach for endodontic applications

Efficient NIR energy conversion of plasmonic silver nanostructures fabricated with the laser-assisted synthetic approach for endodontic applications

A Comprehensive Review on Study Methods of Aerosol Optical Properties in Different Dimensions

Surface-localized plasmon resonance in a system of randomly arranged gold nanorods on a dielectric substrate

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