Morphology-independent general-purpose optical surface tractor beam

Wang, Neng1; Ng, Jack2; Wang, Guo Ping1,3

2024-08-09

10.1038/s41467-024-51100-7

NATURE COMMUNICATIONS   影响因子和分区

2041-1723

["Optical tractor beams capable of pulling particles backward have garnered significant and increasing interest. Traditional optical tractor beams are limited to free space beams with small forward wavevectors, enabling them to pull selected particles. Here, we present a comprehensive theory for the optical force exerted by a surface wave using analytical and numerical calculations, revealing the relationship between the canonical momentum and optical forces. Based on this theory, we demonstrate a general purpose optical surface tractor beam that can pull any passive particle, regardless of size, composition, or geometry. The tractor beam utilizes a surface wave with negative canonical momentum characterized by a single well-defined negative Bloch k vector. The tractor beam relies on a mechanism where the negative incident force always surpasses the recoil force. As such, the tractor beam, when excited on the surface of a double-negative index metamaterial, can pull particles with different morphologies.","Authors demonstrate that Minkowski momentum is relevant for optical manipulation by surface wave. Thus, unconditional optical pulling irrespective of particle morphology can be achieved by a forward-propagating surface wave with a negative k-vector."]

SCI

英语

通讯

National Natural Science Foundation of China (National Science Foundation of China)[2022YFA1404500] ; Key Project of the National Key Research and Development Program of China["12074267","12174263","12074169"] ; National Natural Science Foundation of China[2021QN02C103]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:001297221600049

NATURE PORTFOLIO

Web of Science

1.Shenzhen Univ, State Key Lab Radio Frequency Heterogeneous Integr, Shenzhen, Peoples R China
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen, Peoples R China
3.Shenzhen Univ, Coll Elect & Informat Engn, Shenzhen, Peoples R China

Wang, Neng,Ng, Jack,Wang, Guo Ping. Morphology-independent general-purpose optical surface tractor beam[J]. NATURE COMMUNICATIONS,2024,15(1).

Wang, Neng,Ng, Jack,&Wang, Guo Ping.(2024).Morphology-independent general-purpose optical surface tractor beam.NATURE COMMUNICATIONS,15(1).

Wang, Neng,et al."Morphology-independent general-purpose optical surface tractor beam".NATURE COMMUNICATIONS 15.1(2024).