We report on experimental verification of optical trapping using multiple beams generated by a vertical-cavity surface-emitting laser (VCSEL) array. Control of the spatial and temporal emission of a VCSEL array provides flexibility for manipulation of microscopic objects with compact hardware. Simultaneous capture of multiple objects and translation of an object without mechanical movement are demonstrated by an experimental system equipped with 8 × 8 VCSEL array sources. Features and applicability of the method are also discussed.
© 2001 Optical Society of America
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(140.3290) Lasers and laser optics : Laser arrays
(140.7010) Lasers and laser optics : Laser trapping
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(350.4990) Other areas of optics : Particles
Yusuke Ogura, Keiichiro Kagawa, and Jun Tanida, "Optical Manipulation of Microscopic Objects by Means of Vertical-Cavity Surface-Emitting Laser Array Sources," Appl. Opt. 40, 5430-5435 (2001)