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Optical Engineering • Open Access

Near real-time measurement of forces applied by an optical trap to a rigid cylindrical object
Author(s): Joseph Glaser; David Hoeprich; Andrew Resnick

Paper Abstract

An automated data acquisition and processing system is established to measure the force applied by an optical trap to an object of unknown composition in real time. Optical traps have been in use for the past 40 years to manipulate microscopic particles, but the magnitude of applied force is often unknown and requires extensive instrument characterization. Measuring or calculating the force applied by an optical trap to nonspherical particles presents additional difficulties which are also overcome with our system. Extensive experiments and measurements using well-characterized objects were performed to verify the system performance.

Paper Details

Date Published: 23 July 2014
PDF: 8 pages
Opt. Eng. 53(7) 074110 doi: 10.1117/1.OE.53.7.074110
Published in: Optical Engineering Volume 53, Issue 7
Show Author Affiliations
Joseph Glaser, Cleveland State Univ. (United States)
David Hoeprich, Cleveland State Univ. (United States)
Andrew Resnick, Cleveland State Univ. (United States)

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