Patents Examined by Thorg Nguyen
  • Method for applying optical gradient forces and moving material
    Patent number: 6624940
    Abstract: An apparatus and method for manipulating small dielectric particles. The apparatus and method involves use of a diffractive optical element which receives a laser beam and forms a plurality of light beams. These light beams are operated on by a telescope lens system and then an objective lens element to create an array of optical traps for manipulating small dielectric particles.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: September 23, 2003
    Assignee: Arch Development Corporation
    Inventors: David G. Grier, Eric R. Dufresne