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Proceedings Paper

Stable manipulating of nanowires by line optical tweezers with haptic feedback
Author(s): Song-Woo Lee; Takhee Lee; Yong-Gu Lee
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Paper Abstract

Optical tweezers are widely used for manipulating microscopic objects. Compared to other contact type microscopic manipulators such as micro-grippers that exhibit firm gripping, optical tweezers inherently possess loose gripping. For example, if a user tries to move target objects too fast such that the drag force of the viscous fluid exceeds the trapping force, target objects will escape from the effective trapping region. When this happens in a standard user interface environment with only video feedback, the user would sense this with a visual cue and slow down or slightly reverse the movement of the trap. In this study we enrich the user interface by adding a haptic cue that is a sense of forces and torques so that the user will sense the drag force and torque that is proportional to the gap distance and angle between the line trap and the nanowire. We present some preliminary results of putting haptic cue for manipulating nanowires.

Paper Details

Date Published: 5 September 2007
PDF: 12 pages
Proc. SPIE 6644, Optical Trapping and Optical Micromanipulation IV, 66441X (5 September 2007); doi: 10.1117/12.731737
Show Author Affiliations
Song-Woo Lee, Gwangju Institute of Science and Technology (South Korea)
Takhee Lee, Gwangju Institute of Science and Technology (South Korea)
Yong-Gu Lee, Gwangju Institute of Science and Technology (South Korea)

Published in SPIE Proceedings Vol. 6644:
Optical Trapping and Optical Micromanipulation IV
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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