Touching the microworld with force-feedback optical tweezers | Zendy

Cécile Pacoret | Zendy; Richard Bowman | Zendy; Graham M. Gibson | Zendy; Sinan Haliyo | Zendy; D. M. Carberry | Zendy; A. Bergander | Zendy; Jean-Claude Régnier | Zendy; Miles J. Padgett | Zendy

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Touching the microworld with force-feedback optical tweezers

Author(s) -

Cécile Pacoret,

Richard Bowman,

Graham M. Gibson,

Sinan Haliyo,

D. M. Carberry,

A. Bergander,

Jean-Claude Régnier,

Miles J. Padgett

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.010259

Subject(s) - optical tweezers , tweezers , transparency (behavior) , magnetic tweezers , optical force , coupling (piping) , optomechanics , optics , force spectroscopy , brownian motion , physics , computer science , nanotechnology , materials science , atomic force microscopy , computer security , resonator , quantum mechanics , metallurgy

Optical tweezers are a powerful tool for micromanipulation and measurement of picoNewton sized forces. However, conventional interfaces present difficulties as the user cannot feel the forces involved. We present an interface to optical tweezers, based around a low-cost commercial force feedback device. The different dynamics of the micro-world make intuitive force feedback a challenge. We propose a coupling method using an existing optical tweezers system and discuss stability and transparency. Our system allows the user to perceive real Brownian motion and viscosity, as well as forces exerted during manipulation of objects by a trapped bead.

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