Three-dimensional force calibration of a single-beam optical gradient trap

被引：27

作者：

Bartlett, P ^{[1
]}

Henderson, S ^{[1
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 33期

关键词：

D O I：

10.1088/0953-8984/14/33/314

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have used a high-resolution back-focal-plane detector to make simultaneous measurements of the axial and lateral force constants of a micron-sized particle in a single-beam optical gradient trap. We measure the optical force applied to the trapped particle as a function of the relative index of refraction of particle and medium, the radius of the particle, and the laser beam power. Results are compared with recent theoretical predictions.

引用

页码：7757 / 7768

页数：12

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