Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Measurements of optical tweezers stiffness

Not Accessible

Your library or personal account may give you access

Abstract

We report an experimental study of the trapping efficiency of an optical tweezers system acting on spherical polystyrene particles in water solution. As force calibration method we used the viscous drag exerted by fluid flow. A parametric study of the efficiency of the trap was made as a function of bead diameter and objective NA. Optical tweezers were also characterized in terms of the optical potential well by measuring the displacement of trapped particles undergone to a viscous drag for fluid flow below the critical velocity. Trap stiffness was determined for particle size of 14.9 μm at different laser powers.

© 2001 OSA/SPIE

PDF Article
More Like This
Combined optical tweezers and optical stretcher in microscopy

W. Singer, M. Frick, T. Haller, P. Dietl, S. Bernet, and M. Ritsch-Marte
4434_227 European Conference on Biomedical Optics (ECBO) 2001

Trap Stiffness in Negative Optoelectronic Tweezers (OET)

Steven L. Neale and Ming C. Wu
CThLL6 Conference on Lasers and Electro-Optics (CLEO:S&I) 2008

Optical Field Enhancement In Tweezer Trapping

M. J. Kendrick, M. Blanding, D. H. McIntyre, and O. Ostroverkhova
JWA62 Conference on Lasers and Electro-Optics (CLEO:S&I) 2007

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved