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Proceedings Article

Lens-less approach to image the optically-tweezed assembly

[+] Author Affiliations
Gang Wang

Indiana Univ., Purdue Univ., Fort Wayne

J. B. Ketterson

Northwestern Univ.

Proc. SPIE 5930, Optical Trapping and Optical Micromanipulation II, 593027 (August 26, 2005); doi:10.1117/12.615954
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From Conference Volume 5930

  • Optical Trapping and Optical Micromanipulation II
  • Kishan Dholakia; Gabriel C. Spalding
  • San Diego, California, USA | July 31, 2005

abstract

We present an alternative approach to image and analyze a large amount of optically-bound particles without using microscope objective lenses. The polystyrene spheres were trapped and patterned in the one dimensional optical potential traps formed by two counter-propagating laser beams. Diffraction patterns from such polystyrene sphere assembly were studied and the result are reported. This method offers a significantly larger field of view and faster analysis over the conventional high-power microscope-based imaging technique. The applications of such technique to investigate the statistic (macroscopic) behaviors of a large number of microscopic particles trapped in the optical field were proposed.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Gang Wang and J. B. Ketterson
"Lens-less approach to image the optically-tweezed assembly", Proc. SPIE 5930, Optical Trapping and Optical Micromanipulation II, 593027 (August 26, 2005); doi:10.1117/12.615954; http://dx.doi.org/10.1117/12.615954


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