Rotation of microscopic propellers in laser tweezers

被引：34

作者：

Galajda, P ^{[1
]}

Ormos, P ^{[1
]}

机构：

[1] Hungarian Acad Sci, Biol Res Ctr, Inst Biophys, H-6701 Szeged, Hungary

来源：

JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS | 2002年 / 4卷 / 02期

关键词：

radiation pressure; optical tweezers; two-photon polymerization; angular momentum; microrotors;

D O I：

10.1088/1464-4266/4/2/372

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Particles of helical shape trapped in laser tweezers are rotated by light, independently of its polarization state. Light scattering by such propeller-like particles generates the momentum to drive the rotation. The efficiency of the rotation depends on the geometry of the particles. We used photopolymerization of light curing resins to create micrometre-size rotors with different shapes. The rotation of such particles was studied: the effect of shape and size on the rotation, as well as on the stability of the position in the laser tweezers.

引用

页码：S78 / S81

页数：4