Random multiple light scattering in disordered photonics leads to interesting and unexpected physical phenomena. Here, we demonstrate two types of partially disordered nano-porous metallic oxide materials: disordered grating nano-pores and two-dimensional disordered nano-tubes, which are produced just with one-step anodic oxidation. The relations among the processing parameters, morphology properties and multiple scattering characteristics are investigated. The surface morphology controllability can be achieved by simply changing the processing direct voltages, leading to different scattering properties. The probabilistic model of partially disordered nano-porous metallic oxide is constructed according to the nano-structure characteristics of oxide, and the rigorous coupled wave analysis is utilized for optical field simulation to exhibit the theoretical multiple scattering properties. Futhermore, the experimental scattering fields are measured and are analysed by statistical method. The research focuses on the disorder caused by one-step oxidation, which is distinct from previous studies that introducing disorder into periodic materials, and would open up new prospects for sensing, bionics and structural color.

中文翻译：

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部分无序纳米多孔金属氧化物工程：表面形貌可控性和多重散射特性

无序光子学中的随机多重光散射会导致有趣且意想不到的物理现象。在这里，我们展示了两种部分无序的纳米多孔金属氧化物材料：无序光栅纳米孔和二维无序纳米管，它们仅通过一步阳极氧化产生。研究了加工参数、形态特性和多重散射特性之间的关系。表面形貌可控性可以通过简单地改变处理直流电压来实现，从而导致不同的散射特性。根据氧化物的纳米结构特征构建部分无序纳米多孔金属氧化物的概率模型，并利用严格的耦合波分析进行光场模拟，以展示理论的多重散射特性。此外，通过统计方法测量和分析实验散射场。该研究侧重于一步氧化引起的无序，不同于以往将无序引入周期性材料的研究，将为传感、仿生学和结构颜色开辟新的前景。