期刊
APPLIED PHYSICS LETTERS
卷 94, 期 15, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3116621
关键词
acousto-optical deflectors; differential equations; force measurement; light polarisation; optical images; photodetectors; photodiodes; radiation pressure
资金
- NSF [CMMI0814615, ECCS0814612]
A prevalent mode of optical tweezers involves position clamping that regulates a constant position of a trapped bead. Traditional schemes employ the measured bead position in the open loop or the control signal in the position-clamp mode as an estimate of external force on the trapped bead. This article shows that traditional methods introduce fundamental limitations on bandwidth of the external force estimation. A method is presented that leads to an order of magnitude increase in the bandwidth of the external force estimation. Furthermore, a comprehensive modeling paradigm is introduced that facilitates estimation of forces on the bead.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据