DYNAMIC ARRAY MANIPULATION OF MICROSCOPIC PARTICLES VIA OPTOELECTRONIC TWEEZERS

Abstract

We report on the first dynamic array manipulation of microparticles using optoelectronic tweezers. Polystyrene particles with 20 and 45-m diameters are individually trapped by light patterns generated by a digital light projector with digital micromirror device (DMD). Self-organization and individual addressing of the particles are demonstrated. Movement of 45-m polystyrene particle is measured to be 35 m/sec (a force of 15 pN).