منابع مشابه
Introduction to the Maxwell Garnett approximation: tutorial.
This tutorial is devoted to the Maxwell Garnett approximation and related theories. Topics covered in this first, introductory part of the tutorial include the Lorentz local field correction, the Clausius-Mossotti relation and its role in the modern numerical technique known as the discrete dipole approximation, the Maxwell Garnett mixing formula for isotropic and anisotropic media, multicompon...
متن کاملA Maxwell Garnett Model for Dielectric Mixtures Containing Conducting Particles at Optical Frequencies
Mathematical modeling of composites made of a dielectric base and randomly oriented metal inclusions is considered. Different sources of frequency-dependent metal conductivity at optical frequencies are taken into account. These include the skin-effect, dimensional (length-size) resonance of metal particles, and the Drude model. Also, the mean free path of electrons in metals can be smaller tha...
متن کاملNonlinear susceptibility of composite optical materials in the Maxwell Garnett model.
Within the context of the Maxwell Garnett model, we calculate the nonlinear susceptibility of a composite optical material comprised of spherical inclusion particles contained within a host material. We allow both constituents to respond nonlinearly and to exhibit linear absorption. Our treatment takes complete account of the tensor nature of the nonlinear interaction, under the assumption that...
متن کاملThe effects of local fields on laser gain for layered and Maxwell Garnett composite materials
We develop simple theoretical models for calculating the effective linear susceptibilities of layered and Maxwell Garnett composite materials with a gain resonance in one of their components. We distinguish two cases of resonant components: the case of ‘pure resonant emitters’, in which all the atoms or molecules of the resonant medium are of the same sort, and the case of ‘resonant emitters in...
متن کاملMaxwell Garnett theory for mixtures of anisotropic inclusions: Application to conducting polymers
The effective dielectric function ee for a medium of anisotropic inclusions embedded in an isotropic host is calculated using the Maxwell Garnett approximation. For uniaxial inclusions, ee depends on how well the inclusions are aligned. We apply this approximation to study ee for a model of quasi-one-dimensional organic polymers. The polymer is assumed to be made up of small single crystals emb...
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ژورنال
عنوان ژورنال: Nature
سال: 1958
ISSN: 0028-0836,1476-4687
DOI: 10.1038/1811175b0