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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 18 — Sep. 3, 2007
  • pp: 11616–11621

Haptic guidance for improved task performance in steering microparticles with optical tweezers

Cagatay Basdogan, Alper Kiraz, Ibrahim Bukusoglu, Aydin Varol, and Sultan Doğanay  »View Author Affiliations

Optics Express, Vol. 15, Issue 18, pp. 11616-11621 (2007)

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We report the manipulation of 4–5 µm diameter polymer microspheres floating in water using optical tweezers (OT) and a haptic device (i.e. force-reflecting robotic arm). Trapped microspheres are steered using the end-effector of a haptic device that is virtually coupled to an XYZ piezo-scanner controlling the movements of the fluid bed. To help with the manipulations, we first calculate a collision-free path for the particle and then display artificial guidance forces to the user through the haptic device to keep him/her on this path during steering. Experiments conducted with 8 subjects show almost two-fold improvements in the average path error and average speed under the guidance of haptic feedback.

© 2007 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(150.5758) Machine vision : Robotic and machine control

ToC Category:

Original Manuscript: July 31, 2007
Revised Manuscript: August 27, 2007
Manuscript Accepted: August 27, 2007
Published: August 28, 2007

Virtual Issues
Vol. 2, Iss. 10 Virtual Journal for Biomedical Optics

Cagatay Basdogan, Alper Kiraz, Ibrahim Bukusoglu, Aydın Varol, and Sultan Doğanay, "Haptic guidance for improved task performance in steering microparticles with optical tweezers," Opt. Express 15, 11616-11621 (2007)

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