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	Observation of high-order imaginary Poynting momentum optomechanics in structured light
	Zhou, Yuan1,5; Xu, Xiaohao4; Zhang, Yanan1,5; Li, Manman5; Yan, Shaohui5; Nieto-Vesperinas, Manuel3; Li, Baojun4; Qiu, Cheng-Wei2; Yao, Baoli1,5
英文摘要	The imaginary Poynting momentum (IPM) of light has been captivated an unusual origin of optomechanical effects on dipolar magnetoelectric particles, but yet observed in experiments. Here, we report, for the very first time, a whole family of high-order IPM forces for not only magnetoelectric but also generic Mie particles, assisted with their excited higher multipoles within. Such optomechanical phenomena derive from a nonlinear contribution of the IPM to the optical force, and can be remarkable even when the incident IPM is small. We observe the high-order optomechanics in a structured light beam with vortex-like IPM streamlines, which allows the low-order dipolar contribution to be suppressed. Our results provide the first unambiguous evidence of the ponderomotive nature of the IPM, expand the classification of optical forces and open new possibilities for optical forces and micromanipulations. © 2022, CC BY.
	2022-06-07
产权排序	1
语种	英语
内容类型	预印本
源URL	[http://ir.opt.ac.cn/handle/181661/96047]
专题	西安光学精密机械研究所_瞬态光学技术国家重点实验室
作者单位	1.University of Chinese Academy of Sciences, Beijing; 100049, China; 2.Department of Electrical and Computer Engineering, National University of Singapore, Singapore; 117583, Singapore 3.Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Campus de Cantoblanco, Madrid; 28049, Spain; 4.Institute of Nanophotonics, Jinan University, Guangzhou; 511443, China; 5.State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China;
推荐引用方式 GB/T 7714	Zhou, Yuan,Xu, Xiaohao,Zhang, Yanan,et al. Observation of high-order imaginary Poynting momentum optomechanics in structured light. 2022.

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