Light fields with an axially expanded intensity distribution for stable three-dimensional optical trapping.
Light fields with an axially expanded intensity distribution for stable three-dimensional optical trapping.
复制标题
具有轴向扩展强度分布的光场，可实现稳定的三维光捕获。
DOI：
10.1364/oe.18.019941
复制
发表时间：
2010
期刊：
影响因子：
3.8
通讯作者：
W. Osten
中科院分区：
文献类型：
--
作者：
S. Zwick;C. Schaub;T. Haist;W. Osten
我们引入了一种新的光场来改善和简化轴向位移粒子的捕获过程。为此，我们采用具有轴向扩展强度分布的光场，其同时能够实现稳定的轴向捕获。我们提出了模拟的轴向强度分布的新的捕获场和第一个实验结果，这表明提高了可靠性的轴向捕获过程。该方法可用于自动捕获位于显微镜焦平面外的颗粒。
We introduce a new kind of light field to improve and simplify the trapping process of axially displaced particles. To this end we employ a light field with an axially expanded intensity distribution, which at the same time enables stable axial trapping. We present simulations of the axial intensity distribution of the novel trapping field and first experimental results, which demonstrate the improvement of the reliability of the axial trapping process. The method can be used to automate trapping of particles that are located outside of the focal plane of the microscope.