Three-dimensional scanning optical tweezers

Sun-Uk Hwang; In-Yong Park; Je-Hoon Song; Yong-Gu Lee; Thomas LeBrun; Nicholas Dagalakis; Cedric Gagnon; Arvind Balijepalli

doi:10.1117/12.644463

5 December 2005 Three-dimensional scanning optical tweezers

Sun-Uk Hwang, In-Yong Park, Je-Hoon Song, Yong-Gu Lee, Thomas LeBrun, Nicholas Dagalakis, Cedric Gagnon, Arvind Balijepalli

Author Affiliations +

Proceedings Volume 6048, Optomechatronic Actuators and Manipulation; 604803 (2005) https://doi.org/10.1117/12.644463
Event: Optomechatronic Technologies 2005, 2005, Sapporo, Japan

Abstract

There are several new tools for manipulating microscopic objects. Among them, optical tweezers (OT) has two distinguishing advantages. Firstly, OT can easily release an object without the need of a complicated detaching scheme. Secondly, it is anticipated to manipulate an object with six degrees of freedom. OT is realized by tightly focusing a laser beam on microscopic objects. Grabbing and releasing is easily done by turning a laser beam on and off. For doing a dexterous manipulation on an object, a complicated potential trap must be calculated and applied. We foresee that such calculation method will be developed in the near future. One of the candidates for implementing the calculated trap is scanning optical tweezers (SOT). SOT can be built by using actuators with a scanning frequency in the order of a hundred Hertz. We need fast scanners to stably trap an object. In this study, we present our design of such SOT. The SOT uses piezo-actuated tilt mirror and objective positioner to scan full three-dimensional workspace.

Citation Download Citation

Sun-Uk Hwang, In-Yong Park, Je-Hoon Song, Yong-Gu Lee, Thomas LeBrun, Nicholas Dagalakis, Cedric Gagnon, and Arvind Balijepalli "Three-dimensional scanning optical tweezers", Proc. SPIE 6048, Optomechatronic Actuators and Manipulation, 604803 (5 December 2005); https://doi.org/10.1117/12.644463

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