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Proceedings Paper

Lens-less approach to image the optically-tweezed assembly
Author(s): Gang Wang; J. B. Ketterson
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Paper 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.

Paper Details

Date Published: 26 August 2005
PDF: 7 pages
Proc. SPIE 5930, Optical Trapping and Optical Micromanipulation II, 593027 (26 August 2005); doi: 10.1117/12.615954
Show Author Affiliations
Gang Wang, Indiana Univ., Purdue Univ., Fort Wayne (United States)
J. B. Ketterson, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 5930:
Optical Trapping and Optical Micromanipulation II
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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