Light Interaction with Cluster Chiral Nanostructures by High-Order Bessel Beam
Light Interaction with Cluster Chiral Nanostructures by High-Order Bessel Beam
复制标题
DOI：
10.3390/photonics9080509
复制
发表时间：
2022-07
期刊：
影响因子：
2.4
通讯作者：
Jing Bai;Cheng-xian Ge;Zhen-Sen Wu;P. Su;Yu Gao
中科院分区：
文献类型：
--
作者：
Jing Bai;Cheng-xian Ge;Zhen-Sen Wu;P. Su;Yu Gao
研究了团簇手性纳米粒子与任意照明下的高阶贝塞尔光束（HOBB）的相互作用。应用广义Lorenz-Mie理论（GLMT）导出HOBB展开式。基于附加定理，考虑切向连续边界条件，得到了团簇手性纳米粒子的多重散射结果。通过计算机仿真技术（CST）软件的仿真验证了本文理论和程序的有效性。数值计算结果详细地显示了光束阶数、光束锥角、入射角、光束偏振态、手征性以及材料损耗对各种类型的聚集手征粒子散射的影响，包括线性手征球链、手征立方体阵列以及由聚集手征球组成的复杂模型.该研究为解析理解复杂形状的聚集手性粒子的光学散射特性提供了重要的支持，并可能在操纵集体手性粒子方面找到重要的应用。
Interactions between cluster chiral nanoparticles and a high-order Bessel beam (HOBB) with arbitrary illuminations are investigated. The generalized Lorenz–Mie theory (GLMT) is applied to derive the expansions of HOBB. Based on the additional theorem, multiple scattering results of cluster chiral nanoparticles are obtained by taking into account the tangential continuous boundary conditions. The present theory and codes proved to be effective when confronted with the simulations obtained from the Computer Simulation Technology (CST) software. Numerical results concerning the effects of beam order, beam conical angle, incident angles, beam polarization state, the chirality, and the material loss on the scattering of various types of aggregated chiral particles are displayed in detail, including the linearly chiral sphere chain, the chiral cube array, and the complex models composed of aggregated chiral spheres. This study may provide critical support to analytically understand the optical scattering characteristics with aggregated chiral particles of complex shapes, and may find important applications in manipulating collective chiral particles.