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US 5,308,976 AGranted
Method for multi-beam manipulation of microparticles
AssigneeResearch Development Corporation of Japan
InventorsHiroaki Misawa, Keiji Sasaki, Nobura Kitamura
Life of this patent
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Abstract
Irradiating a plurality of laser beams onto different microparticles or different groups of microparticles, and trapping and/or manipulating these microparticles or groups of microparticles. This method permits manipulation of microparticles with a plurality of trapping laser beams not mutually interfering just as with two human hands. By coaxially introducing an excited laser beam, it is possible to induce chemical reactions for processing or assembling.
Claims3
A method for multi-beam manipulation of microparticles, which comprises the steps of
- (a) a first step of irradiating a plurality of laser beams onto microparticles for individually trapping said microparticle(s),
- (b) a second step of bringing the trapped microparticle(s) into contact with other trapped microparticle(s) by scanning the laser beams, and
- (c) a third step of irradiating an excited laser beam onto the contact area of the trapped microparticles to cause photoreaction of the microparticles.
Dependencies are inferred from the claim text.