Mie theory for light scattering by a spherical particle in an absorbing medium

Fu, Qiang; Sun, Wenbo

doi:10.1364/ao.40.001354

Cited by 339 publications

(209 citation statements)

References 4 publications

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“…The formulations of other single scattering properties of perfectly conducting spheres or circular cylinders, such as extinction or scattering efficiency, single-scattering albedo, and asymmetry factor, are identical to those reported in Fu and Sun [15] or in Sun et al [16].…”

Section: B Circular Cylinderssupporting

confidence: 67%

“…The computational programs developed in Fu and Sun [15] and in Sun et al [16] are used in the calculation of light scattering properties for these sand spheres and circular aerosols, respectively. In this study, we assume a refractive index of 1.5 for sand.…”

Section: Resultsmentioning

confidence: 99%

“…) ( For a spherical particle, the nonzero elements of the amplitude scattering matrix are derived using a far-field approximation as [2,15] )] (cos ) (cos [ ) 1 (…”

Section: A Spheresmentioning

confidence: 99%

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Optical characterization of metallic aerosols

Sun

Lin

2006

Journal of Quantitative Spectroscopy and Radiative Transfer

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Airborne metallic particulates from industry and urban sources are highly conducting aerosols. The characterization of these pollutant particles is important for environment monitoring and protection. Because these metallic particulates are highly reflective, their effect on local weather or regional radiation budget may also need to be studied. In this work, light scattering characteristics of these metallic aerosols are studied using exact solutions on perfectly conducting spherical and cylindrical particles. It is found that for perfectly conducting spheres and cylinders, when scattering angle is larger than ~90 o the linear polarization degree of the scattered light is very close to zero. This light scattering characteristics of perfectly conducting particles is significantly different from that of other aerosols. When these perfectly conducting particles are immersed in an absorbing medium, this light scattering characteristics does not show significant change. Therefore, measuring the linear polarization of scattered lights at backward scattering angles can detect and distinguish metallic particulates from other aerosols. This result provides a great potential of metallic aerosol detection and monitoring for environmental protection.

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Section: B Circular Cylinderssupporting

confidence: 67%

Section: Resultsmentioning

confidence: 99%

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Optical characterization of metallic aerosols

Sun

Lin

2006

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…(2) and the absorption contribution can be evaluated with Eq. (3): where, R is the particle radius, is the wavelength of light, f is the fraction of the core volume, ε m is the dielectric constant of the surrounding medium and ε r and ε i are the real and imaginary components of the complex dielectric constant of the nanoparticle [28,29]. The scattering contribution can then be calculated by subtracting the absorption coefficient from the total extinction value.…”

Section: Localized Surface Plasmon Resonance (Lspr) and Mie Theorymentioning

confidence: 99%

Controllable Cobalt Oxide/Au Hierarchically Nanostructured Electrode for Nonenzymatic Glucose Sensing

2016

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By electrodeposition and galvanic replacement reaction, we developed a facile, time-saving, cost-effective, and environmentally friendly, two-step synthesis route to obtain a controllable cobalt oxide/Au hierarchically nanostructured electrode for glucose sensing. The nanomaterials were characterized by transmission electron microscopy, scanning electron microscopy, Raman spectroscopy, energy-dispersive spectrometry, and X-ray photoelectron spectroscopy, meanwhile, the sensing performance was investigated by cyclic voltammetry and amperometric response. The results revealed that this novel electrode exhibited excellent electrocatalytic performance toward glucose oxidation, with a wide double-linear range from 0.2 μM to 20 mM and a low detection limit of 0.1 μM based on a signal-to-noise ratio of 3, which was mainly attributed to the ability of loading a small amount of Au with good electron conductivity on the surface of cobalt oxide nanosheets with large active surface area and synergistic electrocatalytic activity of Au and cobalt oxide toward glucose electrooxidation. This facile, sensitive, and selective glucose sensor is also proven to be suitable for the detection of glucose in human serum.

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“…For example, ozone and CO 2 in the atmosphere have strong absorptive bands at 9.6 mm and 15 mm, respectively 11 . The effects of the medium absorptivity on HSF of a particle is important to many applications including light scattering by cloud particles surrounded, water vapours in the atmosphere, biological particles in the ocean, and air bubbles in the ocean and sea ice 12 . For an absorbing medium, the Mie theory is no longer valid and the Mie equations have to be modified.…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis of Energy Absorption in Micro-particle Photophoresis in Absorbing Gaseous Media

Li¹,

Soong²,

Liu³

et al. 2010

DSJ

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The study deals with photophoresis of a spherical micro-particle suspended in absorbing gaseous media. Photophoretic motion of the particle stems from the asymmetric distribution of absorbed energy within the particle. By evaluating the so-called heat source function at various conditions, the study focuses on the effects of governing parameters on the energy distribution within the particle and their potential influences to the photophoresis. The results reveal that the increase in either particle size or absorptivity enhances the energy intensity on the illuminated (leading) side and tends to generate positive photophoresis. For a particle of low absorptivity, the energy distribution is dominated by particle refraction. Enhancing particle refractivity, the energy tends to be focused onto a certain spot area on the shaded (trailing) side and leads to a tendency of negative photophoresis. Increasing medium absorptivity significantly degrades the level of energy absorbed by the particle and in turn weakens the driving force of the particle photophoresis.

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Mie theory for light scattering by a spherical particle in an absorbing medium

Cited by 339 publications

References 4 publications

Optical characterization of metallic aerosols

Optical characterization of metallic aerosols

Controllable Cobalt Oxide/Au Hierarchically Nanostructured Electrode for Nonenzymatic Glucose Sensing

Parametric Analysis of Energy Absorption in Micro-particle Photophoresis in Absorbing Gaseous Media

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