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arXiv 1502.00684physics.optics
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一维光子结构中随机层厚度分布的展宽对平均透射率的影响

Average Transmission Decrease in One-Dimensional Photonic Structures by Widening the Random Layer Thickness Distribution

Francesco Scotognella

摘要:

在这项工作中,我们研究了无序光子结构的光学特性,其中我们已经控制了随机层厚度的分布。这种结构的特征在于高折射率层和低折射率层的交替,但是层厚度遵循上述分布。我们使用了两种类型的分布:一种是每个厚度都有相同的发生概率,另一种是厚度遵循高斯函数。我们模拟了具有不同宽度分布的光子结构的整个光谱的平均透射率。我们已经发现,层厚度分布的选择是随机光子结构的平均透射率的控制。

英文摘要:

In this work we have studied the optical properties of disordered photonic structures, in which we have controlled the distribution of the random layer thickness. Such structures are characterized by an alternation of high and low refractive index layers, but the layer thicknesses follow the aforementioned distributions. We have used two types of distribution: a distribution in which each thickness has the same probability to occur and one in which the thickness follows a Gaussian function. We have simulated the average transmission all over the spectrum for photonic structure characterized by a different width of the distribution. We have found that the choice of the distribution of the layer thickness is a control of the average transmission of a random photonic structure.

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