Optical orientation and rotation of trapped red blood cells with Laguerre-Gaussian mode

被引：103

作者：

Dasgupta, Raktim ^{[1
]}

Ahlawat, Sunita ^{[1
]}

Verma, Ravi Shankar ^{[1
]}

Gupta, Pradeep Kumar ^{[1
]}

机构：

[1] Raja Ramanna Ctr Adv Technol, Laser Biomed Applicat & Instrumentat Div, Indore 452013, Madhya Pradesh, India

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 08期

关键词：

MICROSCOPIC OBJECTS; 3-DIMENSIONAL ROTATION; VORTEX BEAM; TWEEZERS; PARTICLES; DRIVEN; LIGHT; ROTOR;

D O I：

10.1364/OE.19.007680

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the use of Laguerre-Gaussian (LG) modes for controlled orientation and rotation of optically trapped red blood cells (RBCs). For LG modes with increasing topological charge the resulting increase in size of the intensity annulas led to trapping of the cells at larger tilt angle with respect to the beam axis and thus provided additional control on the stable orientation of the cells under trap. Further, the RBCs could also be driven as micro-rotors by a transfer of orbital angular momentum from the LG trapping beam having large topological charge or by rotating the profile of LG mode having fractional topological charge. (C) 2011 Optical Society of America

引用

页码：7680 / 7688

页数：9

共 31 条

[1]

[Anonymous], BIORYX 200 APPL

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