Gustav Mie and the scattering and absorption of light by particles: Historic developments and basics

Horváth, H.

doi:10.1016/j.jqsrt.2009.02.022

Cited by 145 publications

(97 citation statements)

References 24 publications

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“…For the creation of the MOPSMAP optical data set, we use the wellknown Mie theory (Mie, 1908;Horvath, 2009) in the case of spherical particles, which is a numerically exact approach over a very broad range of sizes. For spheroids we use the Tmatrix method (TMM), which is a numerically exact method but limited with respect to maximum particle size.…”

Section: Optical Modeling Of Single Particlesmentioning

confidence: 99%

MOPSMAP v1.0: a versatile tool for the modeling of aerosol optical properties

Gasteiger

Wiegner²

2018

Geosci. Model Dev.

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Abstract. The spatiotemporal distribution and characterization of aerosol particles are usually determined by remotesensing and optical in situ measurements. These measurements are indirect with respect to microphysical properties, and thus inversion techniques are required to determine the aerosol microphysics. Scattering theory provides the link between microphysical and optical properties; it is not only needed for such inversions but also for radiative budget calculations and climate modeling. However, optical modeling can be very time-consuming, in particular if nonspherical particles or complex ensembles are involved.In this paper we present the MOPSMAP package (Modeled optical properties of ensembles of aerosol particles), which is computationally fast for optical modeling even in the case of complex aerosols. The package consists of a data set of pre-calculated optical properties of single aerosol particles, a Fortran program to calculate the properties of userdefined aerosol ensembles, and a user-friendly web interface for online calculations. Spheres, spheroids, and a small set of irregular particle shapes are considered over a wide range of sizes and refractive indices. MOPSMAP provides the fundamental optical properties assuming random particle orientation, including the scattering matrix for the selected wavelengths. Moreover, the output includes tables of frequently used properties such as the single-scattering albedo, the asymmetry parameter, or the lidar ratio. To demonstrate the wide range of possible MOPSMAP applications, a selection of examples is presented, e.g., dealing with hygroscopic growth, mixtures of absorbing and non-absorbing particles, the relevance of the size equivalence in the case of nonspherical particles, and the variability in volcanic ash microphysics.The web interface is designed to be intuitive for expert and nonexpert users. To support users a large set of default settings is available, e.g., several wavelength-dependent refractive indices, climatologically representative size distributions, and a parameterization of hygroscopic growth. Calculations are possible for single wavelengths or user-defined sets (e.g., of specific remote-sensing application). For expert users more options for the microphysics are available. Plots for immediate visualization of the results are shown. The complete output can be downloaded for further applications. All input parameters and results are stored in the user's personal folder so that calculations can easily be reproduced. The web interface is provided at https://mopsmap.net (last access: 9 July 2018) and the Fortran program including the data set is freely available for offline calculations, e.g., when large numbers of different runs for sensitivity studies are to be made.

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Section: Optical Modeling Of Single Particlesmentioning

confidence: 99%

MOPSMAP v1.0: a versatile tool for the modeling of aerosol optical properties

Gasteiger

Wiegner²

2018

Geosci. Model Dev.

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“…Their unfading brilliant colors had been a source of mystery until 1857, when Micheal Faraday reported that these intense colors were due to the presence of gold nanoparticles 1 , and that the color displayed by these nanoparticles (NP) varied with the NP size. A theoretical solution to this phenomenon was given by Gustav Mie in 1908 2,3 , who accurately solved for the scattering and absorption cross sections of spherical nanoparticles using equations from Maxwell's electromagnetic theory. Subsequently, monolayers of metal nanoparticles have been extensively used in surface plasmon resonance (SPR) sensors [4][5][6] , surface-enhanced Raman scattering (SERS) substrates 7,8 , and other plasmonic devices [9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

Charge-Selective Raman Scattering and Fluorescence Quenching by “Nanometal On Semiconductor” Substrates

Bhatt

Tan²,

Karumuri³

et al. 2010

Nano Lett.

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Ag nanoparticles synthesized on n and p-type Si were shown to exhibit charge-selective surface-enhanced Raman scattering and fluorescence quenching. As revealed by electric force microscopy, the polarity and magnitude of the nanoparticle charge is controllable with the metal-semiconductor Fermi level difference and nanoparticle size. It is inferred that the Fermi level alignment is dominantly contributed by the charge-induced nanoparticle voltage. Nanoparticle charging also accounts for self-inhibition of coalescence during chemical reduction, allowing strong plasmon hybridization.

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“…[20][21][22][23][24] Neste trabalho, Mie condicionou o sistema mediante as seguintes condições de contorno: uma onda eletromagnética polarizada num dado plano incidindo sobre uma esfera homogênea circundada por um meio dielétrico real, com equivalente índice de refração real (Re). Considerando a esfera condutora, deve ser avaliado o fenômeno de absorção da onda eletromagnética, já que a função dielétrica de um condutor é complexa (possui uma componente imaginária, Im) e, por sua vez, tem índice de refração complexo, o qual é função da frequência da onda eletromagnética incidente.…”

Section: Teoria De Mieunclassified

“…As soluções para σ ext e σ esp estão resumidas através das Equações 1 e 2. [20][21][22][23]25,26 (1) (2) Sendo:…”

Section: Teoria De Mieunclassified

“…A teoria é bem sucedida para partículas isoladas umas das outras e para partículas com poucas dezenas de nanômetros, 21,23 uma vez que estabelece condições de contorno relacionadas com o tamanho da nanopartícula e da onda eletromagnética incidente. 20,23,24 Quando a nanopartícula não se enquadra dentro das condições estabelecidas pela teoria de Mie, como aquelas relacionadas com o tamanho, outros fatores se tornam relevantes, os quais levam as explicações das diferenças observadas nos espectros de extinção, como visto na Figura 2, em que há uma dependência do espectro com o tamanho da nanopartícula.…”

Section: Teoria De Mieunclassified

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Ressonância de plasmon de superfície localizado e aplicação em biossensores e células solares

Santos¹,

Santos²,

Thesing³

et al. 2016

Quim. Nova

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LOCALIZED SURFACE PLASMON RESSONANCE APPLIED TO BIOSENSORS AND SOLAR CELLS. Within the last decades, the research on nanoparticles presenting localized surface plasmon resonance has increased constantly. In these materials, the interaction between electrons and incident light results in charge separation, enhancement of the electromagnetic field on the nanoparticles surface and in unique optical properties. Although many metals such as gold, silver, copper and aluminum present localized surface plasmon resonance within the visible range, gold and silver are the most commonly studied metals, due to the chemical inertia of gold and intense plasmon resonance from silver. In this review, we provide a description of the origin of localized surface plasmon resonance through the works developed by Mie, Maxwell and Maxwell-Garnett and a description of many examples of application of plasmonic nanoparticles on biosensors and solar cells, detailing the contribution of these plasmonic nanoparticles on the performance of these devices.Keywords: LSPR; Localized Surface Plasmon Resonance; biosensor; solar cell. INTRODUÇÃONos últimos 20 anos o interesse por nanopartículas metálicas (NPs-M) tem aumentado constantemente devido a sua ampla variedade de aplicações.1-8 Vários grupos de pesquisa têm estudado desde nanopartículas isoladas de cerca de 1 nm até nanopartículas de centenas de nanômetros, assim como seus aglomerados, buscando entender seu comportamento óptico e catalítico. Adicionalmente, a literatura descreve a constante busca por metodologias de síntese cada vez mais simples, de baixo custo e com alta reprodutibilidade. O comportamento óptico de nanopartículas metálicas tem fascinado a humanidade há vários séculos através de obras de arte, mesmo antes que a palavra nanotecnologia fosse utilizada.9 Um dos exemplos mais conhecidos é a Taça de Lycurgus (século 4 d.C), que tem em sua composição nanopartículas de ouro (NPAu).10 No entanto, foi somente em 1857 que as NPs-M receberam maior atenção devido aos estudos de Michael Faraday sobre o efeito da interação da luz em uma solução coloidal de NPAu obtida através da redução do cloreto de ouro pelo fósforo.11,12 Deste então, o interesse nestas NPs tem aumentado e novas metodologias de síntese e caracterização têm sido desenvolvidas, possibilitando grande controle de tamanho e formato.13-15 A pesquisa nesta área foi enriquecida pela compreensão do efeito da ressonância de plasmon de superfície localizado (LSPR), que explica o comportamento óptico destes materiais. Mie foi o primeiro a elucidar a origem das cores nestas estruturas e sua teoria foi posteriormente complementada com os modelos de Maxwell-Garnett que explicavam a interação de NPs-M com o meio. Estes estudos proporcionaram uma ampla visão quanto as possíveis aplicações das NPs-M, sendo atualmente empregada no desenvolvimento de novos materiais como células solares, biossensores e catalisadores. Nesta revisão, serão abordados os embasamentos teóricos envolvidos no efeito LSPR de NPs-M, destacando a aplicação destas n...

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Gustav Mie and the scattering and absorption of light by particles: Historic developments and basics

Cited by 145 publications

References 24 publications

MOPSMAP v1.0: a versatile tool for the modeling of aerosol optical properties

MOPSMAP v1.0: a versatile tool for the modeling of aerosol optical properties

Charge-Selective Raman Scattering and Fluorescence Quenching by “Nanometal On Semiconductor” Substrates

Ressonância de plasmon de superfície localizado e aplicação em biossensores e células solares

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