坡印亭病媒
空中骑兵
物理
旋涡
拓扑(电路)
能量流
拓扑量子数
涡流
引力奇点
经典力学
能量(信号处理)
量子力学
磁场
数学
机械
组合数学
作者
Sicong Wang,Jinhua Sun,Zhongquan Charlie Zheng,Zucheng Zhou,Hongzhi Cao,Shifei Song,Zi‐Lan Deng,Fei Qin,Yaoyu Cao,Xiangping Li
出处
期刊:Cornell University - arXiv
日期:2023-01-01
标识
DOI:10.48550/arxiv.2306.05191
摘要
Topological properties of energy flow of light are fundamentally interesting and have rich practical applications in optical manipulations. Here, skyrmion-like structures formed by Poynting vectors are unveiled in the focal region of a pair of counter-propagating cylindrical vector vortex beams in free space. A N\'eel-Bloch-N\'eel skyrmion type transformation of Poynting vectors is observed along the light propagating direction within a volume with subwavelength feature sizes. The corresponding skyrmion type can be determined by the phase singularities of the individual components of the coherently superposed electromagnetic field in the focal region. This work reveals a new family member of optical skyrmions and may introduce novel physical phenomena associated with light scattering and optical force.
科研通智能强力驱动
Strongly Powered by AbleSci AI