title: Proportional enlargement of movement by using an optically driven multi-link system with an elastic joint.
abstract: Diverse movements using optical manipulation have been introduced. These are generally performed in the focal region of the laser beam. To achieve a wider range of movements based on precise motion transformation, an effective method for optical manipulation that overcomes the important obstacles such as small optical trapping forces, friction, and the viscosity of fluids is required. A multi-link system with an elastic joint is introduced that provides precise motion transformation and amplification. By considering the physical properties of the structure and the optical trapping force, an elastic micron-scale joint with the simple shape of a thin plate was designed. As a further example of a multi-link system with an elastic joint, a double 4-link system for motion enlargement was designed and fabricated. By performing experimental evaluations of the fabricated structures, it was confirmed that multi-link systems with an elastic joint were effective tools for precise motion transformation through optical manipulation.
authors.affiliation: Department of Mechanical Engineering, Korea Advanced Institute of Science & Technology (KAIST), Science Town, Daejeon, Korea.
authors.forename: Yu Jin
authors.initials: YJ
authors.lastname: Jeong
authors.forename: Tae Woo
authors.initials: TW
authors.lastname: Lim
authors.forename: Yong
authors.initials: Y
authors.lastname: Son
authors.forename: Dong-Yol
authors.initials: DY
authors.lastname: Yang
authors.forename: Hong-Jin
authors.initials: HJ
authors.lastname: Kong
authors.forename: Kwang-Sup
authors.initials: KS
authors.lastname: Lee
mesh_terms: D004548:Elasticity; D004867:Equipment Design; D008832:Microchemistry / Q000295:instrumentation*; D008846:Micromanipulation / Q000295:instrumentation*; D008962:Models, Theoretical; D036103:Nanotechnology / Q000295:instrumentation*; D052898:Optical Tweezers