Neves Antonio Alvaro Ranha, Camposeo Andrea, Pagliara Stefano, Saija Rosalba, Borghese Ferdinando, Denti Paolo, Iatì Maria Antonia, Cingolani Roberto, Maragò Onofrio M, Pisignano Dario
National Nanotechnology Laboratory of CNR-INFM, IIT Research Unit, Università del Salento, via Arnesano, Lecce, Italy.
Opt Express. 2010 Jan 18;18(2):822-30. doi: 10.1364/OE.18.000822.
We report on the experimental evidence of tilted polymer nanofiber rotation, using a highly focused linear polarized Gaussian beam. Torque is controlled by varying trapping power or fiber tilt angle. This suggests an alternative strategy to previously reported approaches for the rotation of nano-objects, to test fundamental theoretical aspects. We compare experimental rotation frequencies to calculations based on T-Matrix formalism, which accurately reproduces measured data, thus providing a comprehensive description of trapping and rotation dynamics of the linear nanostructures.
我们报告了使用高度聚焦的线偏振高斯光束实现倾斜聚合物纳米纤维旋转的实验证据。通过改变捕获功率或纤维倾斜角度来控制扭矩。这为纳米物体旋转提出了一种替代先前报道方法的策略，以测试基本理论方面。我们将实验旋转频率与基于T矩阵形式主义的计算结果进行比较，该计算准确地再现了测量数据，从而全面描述了线性纳米结构的捕获和旋转动力学。
