Utilization efficiency of spherical metal nanoparticles that increase light absorption in absorbing media

Дынич, Р. А.

doi:10.1364/josaa.28.000222

Cited by 6 publications

(8 citation statements)

References 16 publications

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“…Here, we propose a cutoff criterion approach for quantifying the energy deposited in the near-field in absorbing media and evaluate its potential as it is applied for different electromagnetic fields enhancement values. We note that, even in the immediate vicinity to the nanoparticle, some regions will absorb more energy, while other regions will actually absorb less than would be absorbed if the particle was not present, so-called hot and cold spots, respectively [16].…”

Section: Near-field Boundary Criteriamentioning

confidence: 94%

“…Dielectric particles in absorbing media have been studied in some detail (e.g., [26][27][28]), but fewer studies have addressed theoretically the metallic particles in absorbing media [16,17,32,33]. Specifically, we performed our calculations for gold spheres (AuNP) embedded in two relevant media: (1) in water with a hypothetical absorbing dye at various concentrations, and (2) in silicon.…”

Section: A Optical Interaction Efficiencies Of Aunp In Absorbing Mediamentioning

confidence: 99%

“…Several noteworthy studies have used this method in conjunction with spherical control volumes concentric on a nanoparticle to determine the total linear optical absorption within a shell region surrounding a plasmonic nanosphere [16,17]. This method, however, cannot provide information on the spatial distribution of the enhanced absorption.…”

Section: Introductionmentioning

confidence: 99%

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Point-by-point near-field optical energy deposition around plasmonic nanospheres in absorbing media

Harrison

Ben‐Yakar

2015

J. Opt. Soc. Am. A

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Here we investigate the effects of absorbing media on plasmon-enhanced near-field optical energy deposition. We find that increasing absorption by the medium results in increased particle scattering at the expense of particle absorption, and that much of this increased particle scattering is absorbed by the medium close to the particle surface. We present an analytical method for evaluating the spatial distribution of near-field enhanced absorption surrounding plasmonic metal nanospheres in absorbing media using a new point-by-point method. We propose criteria to define relevant near-field boundaries and calculate the properties of the local absorption enhancement, which redistributes absorption to the near-field and decays asymptotically as a function of the distance from the particle to background levels. Using this method, we performed a large-scale parametric study to understand the effect of particle size and wavelength on the near-field absorption for gold nanoparticles in aqueous media and silicon, and identified conditions that are relevant to enhanced local infrared absorption in silicon. The presented approach provides insight into the local energy transfer around plasmonic nanoparticles for predicting near-field effects for advanced concepts in optical sensing, thin-film solar cells, nonlinear imaging, and photochemical applications.

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Section: Near-field Boundary Criteriamentioning

confidence: 94%

Section: A Optical Interaction Efficiencies Of Aunp In Absorbing Mediamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Point-by-point near-field optical energy deposition around plasmonic nanospheres in absorbing media

Harrison

Ben‐Yakar

2015

J. Opt. Soc. Am. A

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“…As an example, a given algorithm has been applied to two scientific manuscripts: "Utilization efficiency of spherical metal nanoparticles that increase light absorption in absorbing media" (Dynich, 2011); and "Energy breathing of nanoparticles" (Dynich, 2015). At first, texts of manuscripts were converted from the pdf format into the txt format.…”

Section: Linementioning

confidence: 99%

Analysis of novelty of a scientific text as a basis for assessment of efficiency of scientific activities

Dynich

Wang

2017

JOCM

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Purpose The purpose of this paper is to complement an available system of qualitative analysis of efficiency of scientific activities with assessment of novelty of a subject of research that gives a more complete pattern for evaluating the efficiency of efforts of both scientists and research teams. Design/methodology/approach The approach is based on detection of specified linguistic patterns with further evaluation of similarity and novelty scores of obtained definitions at the sentence level. Findings This work presents an algorithm of automatic search for a new subject of research in scientific papers on the basis of statistical and linguistic analyses of description of new terms. Application of patterns specified in a given manuscript with further utilization of well-known methods of similarity and novelty detection scores makes it possible to evaluate the degree of novelty of a subject of research. Practical implications As a practical application of the proposed algorithm, the algorithm of determination of authority of a scientist will facilitate assessment of personal contributions of certain authors made in a certain field of study. Originality/value The main contribution of a given manuscript is in application of linguistic patterns recognition and calculation of similarity and novelty scores to the area of scientific results with further proposition of the method of automatic search for a new subject of research in scientific manuscripts.

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“…Though the effect of an absorbing medium on the resonance of nanoparticles has been studied in some detail, rigorous studies of the absorption by the medium in the near-field are much less common. Several recent studies have recently addressed the problem of individual metal nanoparticles in absorbing media [6][7][8]. A control volume approach can be used to determine the total energy absorbed MG4 (Contributed Oral) 9:45 AM -10:00 AM 978-1-4577-0733-9/12/$26.00 ©2012 IEEE around a scatterer.…”

Section: B Near-field Absorption In An Absorbing Mediummentioning

confidence: 99%

Embedded Ag@SiO<inf>2</inf> nanoparticles for enhanced solar absorption in thin film photovoltaics

Harrison

Ben‐Yakar

2012

IEEE Photonics Conference 2012

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Utilization efficiency of spherical metal nanoparticles that increase light absorption in absorbing media

Cited by 6 publications

References 16 publications

Point-by-point near-field optical energy deposition around plasmonic nanospheres in absorbing media

Point-by-point near-field optical energy deposition around plasmonic nanospheres in absorbing media

Analysis of novelty of a scientific text as a basis for assessment of efficiency of scientific activities

Embedded Ag@SiO<inf>2</inf> nanoparticles for enhanced solar absorption in thin film photovoltaics

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