Manipulating ellipsoidal micro-particles by femtosecond vortex tweezers

被引：43

作者：

Liu, Changxia ^{[1
]}

Guo, Zhongyi ^{[1
,2
]}

Li, Yan ^{[1
]}

Wang, Xinshun ^{[1
]}

Qu, Shiliang ^{[1
]}

机构：

[1] Harbin Inst Technol Weihai, Dept Optoelect Sci, Weihai 264209, Peoples R China

[2] Hefei Univ Technol, Sch Comp & Informat, Hefei 230009, Peoples R China

来源：

JOURNAL OF OPTICS | 2015年 / 17卷 / 03期

基金：

中国国家自然科学基金;

关键词：

femtosecond vortex tweezers (FsVT); computer-generated hologram (CGH); ellipsoidal micro-particles; orbital angular momentum (OAM); ORBITAL ANGULAR-MOMENTUM; OPTICAL VORTEX; LASER-BEAMS; FORCES; GENERATION; LIGHT; GLASS; TRAP; CELL;

D O I：

10.1088/2040-8978/17/3/035402

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the manipulation of the ellipsoidal micro-particles by the femtosecond vortex tweezer experimentally and theoretically. In our setup the micro-particles can be rotated stably by means of optical torque induced by the femtosecond optical whirl. In order to give insight into observed effects, we establish two adequate theoretical models: one is based upon assumption of full absorption and the other uses the ray tracing method. The numerical simulations agree well with the experimental results.

引用

页数：8

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