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Proceedings Paper

The manipulation of micron-sized metal particles by pulse laser
Author(s): Jimin Chen; Daqing Shun; Xiajun Zhong
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Paper Abstract

In Selective Laser Micro Sintering the powder particles should be assembled or arranged and sintered together. Optical tweezers make used of optical refractive force to manipulate micro objects. Currently the manipulated objects are limited to nano or several micro meters scale. In this paper we develop a novel optical tweezers which employs pulse laser force to drive bigger particles and assemble them. This pulse laser is controlled to form spiral trap which can grasp big particles. In our experiment the 50μm- 100μm-diameter metal particles were moved on a solid surfaces in a process we call 'laser spiral driving force'. Nearly any shape particle, including sphere and non-regular shape, can be moved on the surfaces.

Paper Details

Date Published: 5 October 2006
PDF: 4 pages
Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 63262F (5 October 2006); doi: 10.1117/12.673448
Show Author Affiliations
Jimin Chen, Beijing Univ. of Technology (China)
Daqing Shun, Beijing Univ. of Technology (China)
Xiajun Zhong, Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 6326:
Optical Trapping and Optical Micromanipulation III
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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