CNR-IPCF, Istituto per i Processi Chimico-Fisici, I-98158 Messina, Italy.
Nano Lett. 2011 Nov 9;11(11):4879-84. doi: 10.1021/nl202733j. Epub 2011 Oct 6.
We investigate size-scaling in optical trapping of ultrathin silicon nanowires showing how length regulates their Brownian dynamics, optical forces, and torques. Force and torque constants are measured on nanowires of different lengths through correlation function analysis of their tracking signals. Results are compared with a full electromagnetic theory of optical trapping developed in the transition matrix framework, finding good agreement.
我们研究了超细微晶硅纳米线的光学捕获中的尺寸缩放，展示了长度如何调节它们的布朗动力学、光学力和扭矩。通过跟踪信号的相关函数分析，测量了不同长度的纳米线的力和扭矩常数。结果与在跃迁矩阵框架中开发的全电磁光学捕获理论进行了比较，发现吻合较好。
