Flow-assisted Single-beam Optothermal Manipulation of Microparticles | Zendy

Yangyang Liu | Zendy; Andrew W. Poon | Zendy

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Flow-assisted Single-beam Optothermal Manipulation of Microparticles

Author(s) -

Yangyang Liu,

Andrew W. Poon

Publication year - 2010

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.018483

Subject(s) - levitation , optical tweezers , materials science , optical force , optics , drag , beam (structure) , laser , particle (ecology) , capillary action , tweezers , colloid , laser beams , absorption (acoustics) , nanotechnology , chemistry , physics , mechanics , oceanography , quantum mechanics , composite material , magnet , geology

An optothermal tweezer was developed with a single-beam laser at 1550 nm for manipulation of colloidal microparticles. Strong absorption in water can thermally induce a localized flow, which exerts a Stokes' drag on the particles that complements the gradient force. Long-range capturing of 6 microm polystyrene particles over approximately 176 microm was observed with a tweezing power of approximately 7 mW. Transportation and levitation, targeted deposition and selective levitation of particles were explored to experimentally demonstrate the versatility of the optothermal tweezer as a multipurpose particle manipulation tool.

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