Madadi Ebrahim, Biagooi Morad, Mohammadjafari Farhad, Nedaaee Oskoee SeyedEhsan
Department of Engineering Sciences and Physics, Buein Zahra Technical University, Buein Zahra, Qazvin, Iran.
Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), GavaZang, Zanjan, 45137-66731, Iran.
Sci Rep. 2020 Oct 26;10(1):18294. doi: 10.1038/s41598-020-75187-2.
Transport of mesoscale particles due to driving flow fields or external forces on a periodic surface appears in many areas. Geometrical and physical characteristics of particles affect the velocities of the particles in these periodic landscapes. In this paper, we present a numerical simulation based on solving the Langevin equation for the meso-size particles subjected to the thermal fluctuations in a periodic array of optical traps. We consider the real-size particles which cause the partial trapping of particles in the optical traps. The particles are sorted for the size-dependency of particles' trajectories. Our results are in good agreement with experiments.
由于周期性表面上的驱动流场或外力作用导致的中尺度粒子输运现象出现在许多领域。粒子的几何和物理特性会影响这些周期性环境中粒子的速度。在本文中，我们基于求解朗之万方程，对处于周期性光学阱阵列中受热涨落影响的中尺度粒子进行了数值模拟。我们考虑了导致粒子在光学阱中部分捕获的实际尺寸粒子。根据粒子轨迹的尺寸依赖性对粒子进行了分类。我们的结果与实验结果吻合良好。
