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Levy's distributions of local fields intensities in metal-dielectric systems

机译:金属介电系统中Levy的局部场强度分布

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Levy's distributions are involved in many physical phenomena. Their main characteristics are a very wide spreading and a long tail. The aim of our study is to use these Levy's distributions to understand optical measurements on metal-dielectric systems. Giant fluctuations of the local electric field intensity in metal-dielectric granular films in visible and infrared range have been recently studied. By using previously developed methods, we calculate the intensities of the local fields at each point of the sample surface for Au/TiO2 cermets. We study the field intensities distributions, which show up non-negligible height in giant field values. We interpret these distributions in terms of Levy's law. In such cases, because of the long tail decay, the most important characteristic is the decisive participation of rare events. We then conclude that high-intensities values are high enough to govern the statistical properties when the metal concentration is around 10%. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 7]
机译:征费的分布涉及许多物理现象。它们的主要特征是传播非常广泛,尾巴很长。我们研究的目的是利用这些Levy分布来了解金属介电系统上的光学测量。最近已经研究了在可见光和红外范围内的金属-介电颗粒膜中局部电场强度的巨大波动。通过使用以前开发的方法,我们计算出Au / TiO2金属陶瓷在样品表面每个点的局部电场强度。我们研究了场强分布,这些场强在巨大的场值中显示出不可忽略的高度。我们根据利维定律解释这些分布。在这种情况下,由于长尾衰减,最重要的特征是罕见事件的决定性参与。然后我们得出结论,当金属浓度约为10%时,高强度值足以控制统计属性。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:7]

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