Position clamping of optically trapped microscopic non-spherical probes

被引：29
|
作者：
Phillips, D. B. [1 ]
Simpson, S. H. [1 ]
Grieve, J. A. [1 ]
Gibson, G. M. [2 ]
Bowman, R. [2 ]
Padgett, M. J. [2 ]
Miles, M. J. [1 ]
Carberry, D. M. [1 ]
机构：
[1] Univ Bristol, HH Wills Phys Labs, Bristol, Avon, England
[2] Univ Glasgow, Dept Phys & Astron, SUPA, Glasgow, Lanark, Scotland
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 21期
基金：
英国工程与自然科学研究理事会;
关键词：
PARTICLES; TWEEZERS;
D O I：
10.1364/OE.19.020622
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the degree of control that can be exercised over an optically trapped microscopic non-spherical force probe. By position clamping translational and rotational modes in different ways, we are able to dramatically improve the position resolution of our probe with no reduction in sensitivity. We also demonstrate control over rotational-translational coupling, and exhibit a mechanism whereby the average centre of rotation of the probe can be displaced away from its centre. (C) 2011 Optical Society of America
引用
收藏
页码：20622 / 20627
页数：6
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