OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 27, Iss. 15 — Aug. 1, 2002
  • pp: 1357–1359

Microscopic flow measurements with optically trapped microprobes

Boaz A. Nemet and Mark Cronin-Golomb  »View Author Affiliations


Optics Letters, Vol. 27, Issue 15, pp. 1357-1359 (2002)
http://dx.doi.org/10.1364/OL.27.001357


View Full Text Article

Acrobat PDF (114 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The use of optical tweezers to measure micrometer-resolution velocity fields in fluid flow is demonstrated as an extension of a scanning confocal viscosity microscope. This demonstration is achieved by detection of the motion of an optically trapped microsphere in an oscillating laser trap. The technique is validated by comparison with an independent video-based measurement and applied to obtain a two-dimensional map of the flow past a microscopic wedge. Since the velocity is measured simultaneously with the trap relaxation time, the technique requires no fluid-dependent calibration and is independent of the trap stiffness and the particle size.

© 2002 Optical Society of America

OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(180.1790) Microscopy : Confocal microscopy
(180.5810) Microscopy : Scanning microscopy

Citation
Boaz A. Nemet and Mark Cronin-Golomb, "Microscopic flow measurements with optically trapped microprobes," Opt. Lett. 27, 1357-1359 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-15-1357


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. H. P. Chou, C. Spence, A. Scherer, and S. Quake, Proc. Natl. Acad. Sci. USA 96, 11 (1999).
  2. M. A. Unger, H. P. Chou, T. Thorsen, A. Scherer, and S. R. Quake, Science 288, 113 (2000).
  3. B. A. Nemet, Y. Shabtai, and M. Cronin-Golomb, Opt. Lett. 27, 264 (2002).
  4. T. Tlusty, A. Meller, and R. Bar-Ziv, Phys. Rev. Lett. 81, 1738 (1998).
  5. M. Doi, Introduction to Polymer Physics (Oxford U. Press, Oxford, England, 1996).
  6. J. G. Santiago, S. T. Wereley, C. D. Meinhart, D. J. Beebe, and R. J. Adrian, Exp. Fluids 25, 316 (1998).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article

OSA is a member of CrossRef.

CrossCheck Deposited