Tapered fiber optical tweezers for microscopic particle trapping: fabrication and application

A novel single tapered fiber optical tweezers is proposed and fabricated by heating and drawing technology. The microscopic particle tapping performance of this special designed tapered fiber probe is demonstrated and investigated. The distribution of the optical field emerging from the tapered fiber tip is numerically calculated based on the beam propagation method. The trapping force FDTD analysis results, both axial and transverse, are also given.

提出并利用加热拉伸技术制备了一种新型单锥光纤光镊。对这种特殊设计的锥形光纤探针的微观粒子捕获性能进行了演示和研究。基于光束传播法对从锥形光纤尖端出射的光场分布进行了数值计算。还给出了轴向和横向的捕获力时域有限差分（FDTD）分析结果。