Description:  The dark disks are glass spheres and the light disks are polystyrene beads. The spheres are manipulated by solid laser beams and the beads by ring-shaped beams. This sequence of images shows computer-controlled lasers moving both types of particles at once.
Source:  Risø National Laboratory
Story:  Laser tweezer grabs varied specks
TRN June 16/23, 2004
TRN Categories:  Optical Computing, Optoelectronics and Photonics; Biotechnology
Form:  Still

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