Forward and backward laser-guided motion of an oil droplet
Forward and backward laser-guided motion of an oil droplet
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DOI：
10.1103/physreve.70.046301
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发表时间：
2004-10-01
影响因子：
2.4
通讯作者：
Yoshikawa, K
中科院分区：
文献类型：
--
作者：
Rybalko, S;Magome, N;Yoshikawa, K
漂浮在水溶液中的油滴的定向运动是通过使用产生的。激光束。有趣的是，通过改变激光穿过液滴的光路，可以在向前和向后之间切换液滴运动的方向。这种运动是在激光的某个临界功率以上引起的，并且在该值以上，速度几乎随功率线性增加。这种定向运动的机制解释如下：油滴被窄激光束局部加热，这种局部加热。加热会在液滴内部引起特定的对流模式，这种产生的对流运动会产生液滴的平移定向运动。
Directed motion, of an oil droplet floating in an aqueous solution is generated by using. a laser beam. Interestingly, the direction of the droplet motion can be switched between forward and,backward by changing the optical path of the laser through the droplet. This motion is caused above a certain critical power of the laser, and above this value the velocity increases almost linearly with the power. The mechanism of this directed motion is explained as follows: the oil droplet is locally heated by a narrow laser beam, this local. heating induces a specific mode of convection inside the droplet, and this generated convective motion produces translational directed motion of the droplet.