A study of multi-trapping of tapered-tip single fiber optical tweezers

作     者：梁佩博 雷皎洁 刘志海 张羽 苑立波 

作者机构：Key Laboratory of Fiber Integrated Optics School of Science Harbin Engineering University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2014年第23卷第8期

页      面：642-647页

核心收录：

学科分类：070207[理学-光学] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.61177081,61107069,and 61205027) partially supported by the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20112304110017) the Post-Doctoral Research Fund of Heilongjiang Province,China(Grant No.LBH Q10147) the Fundamental Research Funds for the Harbin Engineering University of China 

主　　题：optical trapping microstructures and particles 

摘      要：We develop a pair of tapered-tip single fiber optical tweezers, and study its multi-trapping characteristic. The finite difference time domain method is employed to simulate the trapping force characteristic of this pair of single fiber optical tweezers, and the results show that the number of trapped particles depends on the refractive index and the size of the particles. The trapping force of this pair of tapered-tip single fiber optical tweezers is calibrated by the experimental method, and the experimental results are consistent with the theoretical calculation results. The multi-trapping capability realized by the tapered-tip single fiber optical tweezers will be practical and useful for applications in biomedical research fields.