Engineering optically driven micromachines

Theodor Asavei; Simon Parkin; Martin Persson; Robert Vogel; Maren Funk; Vincent Loke; Timo Nieminen; Halina Rubinsztein-Dunlop; Norman Heckenberg

doi:10.1117/12.798529

29 August 2008 Engineering optically driven micromachines

Theodor Asavei, Simon Parkin, Martin Persson, Robert Vogel, Maren Funk, Vincent Loke, Timo Nieminen, Halina Rubinsztein-Dunlop, Norman Heckenberg

Author Affiliations +

Proceedings Volume 7038, Optical Trapping and Optical Micromanipulation V; 703816 (2008) https://doi.org/10.1117/12.798529
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

Optical forces and torques acting on microscopic objects trapped in focussed laser beams promise flexible methods of driving micromachines through a microscope cover slip or even a cell wall. We are endeavouring to engineer special purpose micro-objects for a range of tasks. Colloidal self assembly of calcium carbonate provides birefringent spheres which can exert considerable torque, while two photon polymerisation allows us to fabricate objects of arbitrary shape that can be designed to exchange both spin and orbital angular momentum. Numerical calculations of forces and torques can allow an optimal design, and optical measurements provide us with certain knowledge of the forces and torques which are actually exerted.

Citation Download Citation

Theodor Asavei, Simon Parkin, Martin Persson, Robert Vogel, Maren Funk, Vincent Loke, Timo Nieminen, Halina Rubinsztein-Dunlop, and Norman Heckenberg "Engineering optically driven micromachines", Proc. SPIE 7038, Optical Trapping and Optical Micromanipulation V, 703816 (29 August 2008); https://doi.org/10.1117/12.798529

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