FIELD: physics.
SUBSTANCE: according to the method of moving a group of opaque microobjects, a light beam with closed regions of zero intensity is formed from multiple beams. First, three coaxial, zero-order Bessel beams with different propagation constants are formed, thereby forming a stable beam in form of a circular spot. These beams are then arranged in space so as to form one or more closed regions for capturing and moving opaque microparticles.
EFFECT: high efficiency owing to automation of the process.
11 dwg
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