Three dimensional optical twisters-driven helically stacked multi-layered microrotors

被引：24

作者：

Xavier, Jolly ^{[1
]}

Dasgupta, Raktim ^{[2
]}

Ahlawat, Sunita ^{[2
]}

Joseph, Joby ^{[1
]}

Gupta, Pradeep Kumar ^{[2
]}

机构：

[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India

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

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 12期

关键词：

bioMEMS; bio-optics; cellular biophysics; radiation pressure; rotors; CONTROLLED ROTATION; ANGULAR-MOMENTUM; MICROPARTICLES; MANIPULATION; OBJECTS; LIGHT;

D O I：

10.1063/1.3693413

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate tunable helically stacked multi-layered microrotors realized in vortex-embedded three dimensional (3D) optical twister patterns. Intensity-tunable annular irradiance profiles with higher order vortex are generated as well as simultaneously unfolded by phase-engineered multiple plane wave interference. In the individually tunable 3D helical bright arms of these unfolded vortex structures, 2 mu m silica beads are optically trapped as spiraling multilayered handles of multi-armed microrotors. Further, multiple rows of such microrotors are parallelly actuated with controllable sense of rotation. We also present our observation on helical 3D stacking of micro-particles in these longitudinally gyrating multi-armed rotor traps. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3693413]

引用

页数：4

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