Comparison of a high-speed camera and a quadrant detector for measuring displacements in optical tweezers

被引：75

作者：

Keen, S. ^{[1
]}

Leach, J. ^{[1
]}

Gibson, G. ^{[1
]}

Padgett, M. J. ^{[1
]}

机构：

[1] Univ Glasgow, SUPA, Glasgow G12 8QQ, Lanark, Scotland

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2007年 / 9卷 / 08期

关键词：

optical tweezers; high-speed camera; quadrant photodiode; particle tracking;

D O I：

10.1088/1464-4258/9/8/S21

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare the performance of a high-speed camera and a quadrant detector for measuring the displacement of micron-sized particles in optical tweezers. For trapping powers up to 100 mW, the standard deviation of the particle displacements measured by the two techniques shows excellent agreement. This comparison also provides a method for calibrating one technique against the other.

引用

收藏

页码：S264 / S266

页数：3

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