光学扭转纳米棒的运动：过阻尼情况
Motion of an optically torqued nanorod: the overdamped case
摘要：
最近的一个实验[W。A.谢尔顿{ \emph{et\ al.} }，物理学\修订版本\ E { \bf{71} }，036204（2005）]测量了被捕获在粘性流体中的纳米棒对由入射光频电磁波产生的扭矩的响应。描述这种运动的非线性微分方程类似于有阻尼的、受驱动的摆。该方程的过阻尼极限已被解析求解。我们分析了这个解决方案的性质相比，实验的观察，发现非常接近的协议。
英文摘要：
A recent experiment [W. A. Shelton {\emph{et\ al.}}, Phys.\ Rev.\ E {\bf{71}}, 036204 (2005)] measured the response of a nanorod trapped in a viscous fluid to the torque produced by an incident optical frequency electromagnetic wave. The nonlinear differential equation describing this motion is similar that of a damped, driven pendulum. The overdamped limit of this equation has been solved analytically. We analyze the properties of this solution in comparison to the observations of the experiment and find very close agreement.
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