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Proceedings Paper

iTweezers: from toy to tool
Author(s): R. W. Bowman; G. M. Gibson; D. M. Carberry; L. Picco; D. Phillips; M. J. Miles; M. J. Padgett
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Paper Abstract

Holographic optical tweezers are fast becoming an established tool in micro- and nano-science. We present developments in both the interface and the underlying technology as used in our lab, along with some of the uses we have put them to. Real time particle tracking from stereoscopic video images enables us to determine position to nanometre precision in 3D. This can be performed in real time at several kHz, allowing us to positionclamp trapped objects in 3D and measure positions and forces with optically controlled tools. Our multi-touch iPad interface gives interactive control over multiple traps at the same time, which opens new possibilities for controlling tools, structures and other dynamic processes.

Paper Details

Date Published: 6 September 2011
PDF: 6 pages
Proc. SPIE 8097, Optical Trapping and Optical Micromanipulation VIII, 809702 (6 September 2011); doi: 10.1117/12.897435
Show Author Affiliations
R. W. Bowman, Univ. of Glasgow (United Kingdom)
G. M. Gibson, Univ. of Glasgow (United Kingdom)
D. M. Carberry, Univ. of Bristol (United Kingdom)
L. Picco, Univ. of Bristol (United Kingdom)
D. Phillips, Univ. of Bristol (United Kingdom)
M. J. Miles, Univ. of Bristol (United Kingdom)
M. J. Padgett, Univ. of Glasgow (United Kingdom)

Published in SPIE Proceedings Vol. 8097:
Optical Trapping and Optical Micromanipulation VIII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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