材料科学
千分尺
航程(航空)
光学镊子
热的
俘获
粒子(生态学)
粒径
粒子束
灵活性(工程)
光电子学
毫米
调制(音乐)
梁(结构)
光学
非线性系统
物理
化学
声学
物理化学
气象学
复合材料
地质学
统计
生物
量子力学
海洋学
数学
生态学
作者
Bo He,Xuemei Cheng,Hui Zhang,Haowei Chen,Qian Zhang,Zhaoyu Ren,Shan Ding,Jintao Bai
标识
DOI:10.7567/apex.11.052501
摘要
We report micron-sized particle trapping and manipulation using a hollow beam of tunable size, which was generated by cross-phase modulation via the thermal nonlinear optical effect in an ethanol medium. The results demonstrated that the particle can be trapped stably in air for hours and manipulated in millimeter range with micrometer-level accuracy by modulating the size of the hollow beam. The merits of flexibility in tuning the beam size and simplicity in operation give this method great potential for the in situ study of individual particles in air.
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