光散射中的anapole态:理论、结构以及应用  

Anapole States in Light Scattering:Theory,Structures,and Applications

作　　者：田硕[1,2] 王俊俏 郜雅[2] 梁二军 丁佩[1] TIAN Shuo;WANG Junqiao;GAO Ya;LIANG Erjun;DING Pei(School of Materials Science and Engineering,Zhengzhou University of Aeronautics,Zhengzhou,Henan 450046,China;School of Physics and Microelectronics,Zhengzhou University,Zhengzhou,Henan 450001,China)

机构地区：[1]郑州航空工业管理学院材料学院,河南郑州450046 [2]郑州大学物理学院(微电子学院),河南郑州450001

出　　处：《光散射学报》2023年第3期217-231,共15页The Journal of Light Scattering

基　　金：国家自然科学基金(No.12174351);河南省自然科学基金(No.212300410411);河南省教育厅基金(No.22A416014)。

摘　　要：光散射中的anapole态是纳米光子学领域的一种独特的光学现象,可以用Mie理论以及多极展开理论进行分析。对于最常见的一阶电anapole态,其可以看做是由笛卡尔坐标系下电偶极矩和环偶极矩的干涉相消产生,具有典型的远场散射抑制和近场增强性能。本文首先对anapole态的基本概念和理论进行阐述,其次对激发anapole态的微纳结构进行总结,最后结合anapole态独特的光学特性,对其在近场增强、非线性光学、激光等方面潜在的光子学应用和最新研究进展进行了讨论和展望。The anapole state in scattering is a unique optical phenomenon in the field of nanophotonics,which can be analyzed by Mie theory and multipole expansion.For the most common first-order electric anapole,it can be explained by the destructive interference of Cartesian electric dipole and toroidal dipole,with typical far-field scattering suppression and near-field enhancement.In this paper,we describe the basic concept and theory of anapole state firstly,and then summarize the micro-nano structures which support anapole states.Finally in combination with the unique optical properties of anapole states,the potential photonics applications and recent research progress of anapole states in fields such as near-field enhancements,nonlinear optics and lasers are discussed and prospected.

关 键 词：anapole态 MIE理论 超材料 近场增强 光学非线性 纳米激光器 

分 类 号：O436.2[机械工程—光学工程]