Trapping Microparticles in a Structured Dark Focus

被引：5

作者：

Almeida, F. ^{[1
]}

Sousa, I. ^{[1
]}

Kremer, O. ^{[2
]}

da Silva, B. Pinheiro ^{[3
]}

Tasca, D. S. ^{[3
]}

Khoury, A. Z. ^{[3
]}

Temporao, G. ^{[2
]}

Guerreiro, T. ^{[1
]}

机构：

[1] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22451900 Rio De Janeiro, RJ, Brazil

[2] Pontificia Univ Catolica Rio de Janeiro, Ctr Estudos Telecomunicacoes, BR-22453900 Rio De Janeiro, RJ, Brazil

[3] Univ Fed Fluminense, Inst Fis, BR-24210346 Niteroi, RJ, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 131卷 / 16期

基金：

巴西圣保罗研究基金会;

关键词：

OPTICAL TWEEZERS; ANGULAR-MOMENTUM; BOTTLE; BEAM; PARTICLES; GENERATION; ATOM;

D O I：

10.1103/PhysRevLett.131.163601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally demonstrate stable trapping and controlled manipulation of silica microspheres in a structured optical beam consisting of a dark focus surrounded by light in all directions-the dark focus tweezer. Results from power spectrum and potential analysis demonstrate the nonharmonicity of the trapping potential landscape, which is reconstructed from experimental data in agreement to Lorentz-Mie numerical simulations. Applications of the dark tweezer in levitated optomechanics and biophysics are discussed.

引用

页数：6

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