Fiber-optic spanner

被引：45
|
作者：
Black, Bryan J. [1 ]
Mohanty, Samarendra K. [1 ]
机构：
[1] Univ Texas Arlington, Dept Phys, Biophys & Physiol Grp, Arlington, TX 76019 USA
来源：
OPTICS LETTERS | 2012年 / 37卷 / 24期
关键词：
GRADIENT FORCE; PARTICLES; TWEEZERS; LIGHT; ACTUATION; ROTATION; DRIVEN; TRAP; BEAM;
D O I：
10.1364/OL.37.005030
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Methods of controllable, noncontact rotation of optically trapped microscopic objects have garnered significant attention for tomographic imaging and microfluidic actuation. Here, we report development of a fiber-optic spanner and demonstrate controlled rotation of smooth muscle cells. The rotation is realized by introducing a transverse offset between two counterpropagating beams emanating from single-mode optical fibers. The rotation speed and surrounding microfluidic flow could be controlled by varying balanced laser beam powers. Further, we demonstrate simultaneous translation and rotation of the fiber-optically trapped cell by varying the laser power of one fiber-optic arm. (C) 2012 Optical Society of America
引用
收藏
页码：5030 / 5032
页数：3
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