标题： 超越浅幅振幅区域的扰动：与布洛赫模式相结合的格林函数散射形式主义 显示英文标题

标题： Perturbing beyond the shallow amplitude regime: Green's function scattering formalism with Bloch modes

摘要： 我们提出了一种基于布洛赫模式的格林函数散射形式，用于对无序二元表面纹理进行成本高效的正向建模。 使用未受扰参考有序系统的布洛赫模式作为假设，使我们的形式能够处理超出浅幅区的表面散射。 我们形式的主要优势是有可能利用少量平面波来表示假设的布洛赫模式，从而降低计算成本，同时仍允许估计无序系统可访问的所有通道的散射响应。 论文中讨论的基准计算展示了我们的布洛赫模式假设如何在重要的无序区域内提供对散射响应的良好估计。 作为我们方法优势的一个例子，我们研究了一个电学解耦的二元光捕获纹理，并展示了引入无序如何改善光进入所考虑的太阳能电池结构中的耦合。 显示英文摘要

摘要： We present a Bloch modes' based Green's function scattering formalism for cost efficient forward modelling of disordered binary surface textures. The usage of Bloch modes of an unperturbed reference ordered system as ansatz allows our formalism to address surface scattering beyond the shallow amplitude regime. The main advantage of our formalism is the possibility to utilize a small amount of plane waves to represent the assumed Bloch modes thereby reducing computational costs, while still allowing one to estimate the scattering response to all channels accessible by the disordered system. Benchmarking calculations discussed in the paper demonstrate how the usage of our Bloch modes ansatz provides an excellent estimate of the scattering response over an important regime of disorder. As an example of our method's strength, we examine an electrically decoupled binary light trapping texture and demonstrate how introducing disorder may improve light incoupling into the considered solar cell structure.