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用于微粒子振荡和传输的可控制光的液晶平台

Sergey Shvetsov¹, Tetiana Orlova^1,2, Aleksandr Hayrapetyan¹

¹Institute of Physics, Yerevan State University, 1 Alex Manoogian st., Yerevan 0025, Armenia. SergeyShvetsov@ysu.am.

|August 20, 2024

概括

研究人员使用液晶片展示了以光驱动的微粒控制. 这种平台可以实现微流体应用的调节式捕获,运输和复杂运动.

科学领域:

体科学是一种体科学.
软物质物理学软物质物理学
微流体学微流体学

背景情况:

通过外部刺激控制微观物体是一项挑战.
液晶具有独特的光学和材料特性.

研究的目的:

为了证明光驱动的微粒的捕获,运输和持续的周期性运动.
使用液晶薄膜作为可控制光线的合体平台.

主要方法:

使用受焦光束加热的自由表面液晶薄膜.
研究马兰戈尼对流与弹性变形相结合的研究.
分析液晶性,粒子表面处理,薄膜厚度和光功率对粒子运动的影响.

主要成果:

通过光驱动实现了微粒的捕获和运输.
观测到各种粒子运动,包括抑制/持续的振荡和旋转.
通过各种参数对微粒子动态进行可调节的控制.

结论:

自由表面液晶为微观物体的间接光学操纵提供了一个新的平台.
这种方法可以精确控制微粒子的行为.
潜在的应用包括微流体工具,粒子分类,微图案和微机器.

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