With a rapid development of nanosci

With a rapid development of nanoscience and nano- technology, the interaction of light with nanoscaled objects remains as an important topic in recent years because of its wide range applications to optical sensors, imaging, and integrated photonic devices. The studies of the interaction are organized in many different ways [1], being dependent on the dimensionality of the objects and exciting sources.
In this paper, we investigate a two-dimensional scattering and guidance of TE polarized light by a multilayered cylindrically periodic array of metal-coated dielectric nano- cylinders by using a semi-analytical method [2]. In this approach, the scattered fields in near field region to far field region of the cylindrical array structure can be accurately calculated by using the T-matrix of the nanocylinder in isolation and the generalized reflection and transmission matrices for the cylindrical waves. As a model of multi- layered structures, we take a two-layered or three-layered structure with three or four nanocylinders on each layer. The spectral responses of the scattering and absorption cross section of the cylindrical structure and associated near field distributions are numerically investigated. It is shown that the light wave with a particular wavelength can be guided

The scattering problem is semi-analytically formulated using the T -matrix of a circular cylinder in isolation, the reflection and transmission matrices of a cylindrical array based on the cylindrical harmonics expansion, and the generalized reflection and transmission matrices for a cylindrically layered structure. The details of formulation process and analytical procedure are presented in [2],[3].




Fig.1. Cross-sectional view of multilayered cylindrically periodic arrays of metal-coated nanocylinders illuminated by

through the localized plasmon resonances on each nano-
cylinder when the size of the cylinder and their separation distance are optimized

結果 (中文) 1:

随着纳米科学和纳米技术的快速发展，与纳米物体相互作用的光，近几年作为一个重要的话题仍然因为光学传感器、 成像和光子集成的器件及其广泛的应用。在许多不同的方式 [1]，被依赖的对象和令人兴奋的源维度组织相互作用研究。在本文中，我们探讨二维散射和指导的 TE 偏振光通过金属包覆介质纳米柱多层圆柱周期阵列通过使用一种半解析方法 [2]。在此方法中，使用的 T-矩阵的隔离和广义的反射和透射矩阵 nanocylinder 为柱面波可以精确计算散射的场的近场区域对远场区的圆柱阵列结构。作为模型的多层结构，我们就每一层的三个或四个 nanocylinders 两层或三层结构。散射和吸收的光谱反应截面的圆柱状结构和相关的近场分布进行了数值。它是显示与特定波长的光波可以引导下 散射问题半解析推导使用的 T-矩阵的圆柱在隔离、 基于圆柱谐波扩展，圆柱阵列的反射和透射矩阵和广义的反射和透射矩阵的一种圆柱分层结构。制定流程和分析过程的细节介绍了 [2] [3]。 图 1.多层圆柱定期阵列的金属涂层 nanocylinders 被照亮的剖视图 通过对每个纳米-本地化的等离子体共振圆柱体时气缸和他们分离距离的大小进行优化

結果 (中文) 3:

随着纳米科学和纳米技术，纳米级物体与光的相互作用是近年来的一个重要课题，由于其广泛的应用于光学传感器，成像和光子集成器件。在许多不同的方式组织的相互作用的研究[ 1 ]，依赖于对象的维数和令人兴奋的来源。在本文中，我们研究了二维散射和TE偏振光指导由多层圆筒周期阵列金属电介质纳米采用半解析方法[ 2 ]缸。在这种方法中，散射场的近场区的圆柱阵列远场区可采用隔离nanocylinder T矩阵为柱面波广义反射和传输矩阵计算准确。作为一个模型的多层次结构，以一二层或三层结构，每层三或四教育。的散射和吸收截面的圆筒状结构和相关的近场分布的光谱响应进行了数值研究。它表明，与特定波长的光波可以被引导散射问题的半解析配方使用T -孤立圆柱的矩阵，一个基于圆柱谐波展开圆柱阵列的反射和传输矩阵和广义反射和传输矩阵一个圆柱形的分层结构。在[ 2 ]，[ 3 ]的制定过程和分析过程的详细信息。图1。跨多层圆柱周期阵列的镀金属nanocylinders被剖视图通过局域等离子体共振每个纳米—当气缸的大小和它们的分离距离进行了优化