论文标题
光学镊子的扭曲晶格中的胶体运输
Colloidal transport in twisted lattices of optical tweezers
论文作者
论文摘要
我们模拟由静态和均匀漂移力驱动的胶体颗粒的运输，并受到光学镊子两个晶格产生的光势。光学镊子的晶格彼此平行，移动和旋转角度。由于两个晶格的电势之间存在负干扰，因此平面通道出现在总的光电位中。然后，在特定的扭曲角度（称为魔法角度）上，平坦的通道渗透了整个系统和胶体颗粒，然后可以使用弱的外漂移力来运输。我们表征了扭曲的光学镊子的正方形和六角形晶格的运输
We simulate the transport of colloidal particles driven by a static and homogeneous drift force, and subject to the optical potential created by two lattices of optical tweezers. The lattices of optical tweezers are parallel to each other, shifted, and rotated by a twist angle. Due to a negative interference between the potential of the two lattices, flat channels appear in the total optical potential. At specific twist angles, known as magic-angles, the flat channels percolate the entire system and the colloidal particles can then be transported using a weak external drift force. We characterize the transport in both square and hexagonal lattices of twisted optical tweezers
