论文标题
胶体在界面束缚的胶体结晶
Controlled Optofluidic Crystallization of Colloids Tethered at Interfaces
论文作者
论文摘要
我们报告的实验表明，响应激光照明时，胶体束缚在油水界面上的快速结晶。这种光引起的过渡是由于长期嗜热泵和局部光学结合的组合。我们表明，胶体上的流动诱导力可以描述为电势的梯度。因此，由于局部加热而引起的非平衡稳态稳定态，因此接受了有效的平衡描述。在这项工作中探索的Optofluidic操纵开辟了操纵和组装胶体颗粒的新方法
We report experiments that show rapid crystallization of colloids tethered to an oil-water interface in response to laser illumination. This light-induced transition is due to a combination of long-ranged thermophoretic pumping and local optical binding. We show that the flow-induced force on the colloids can be described as the gradient of a potential. The nonequilibrium steady state due to local heating thus admits an effective equilibrium description. The optofluidic manipulation explored in this work opens novel ways to manipulate and assemble colloidal particles
