Laser trapping and method for applications thereof

Details Laser trapping and method for applications thereof Laser trapping and method for applications thereof

1991-12-13

1993-05-18

Berman, Jack I.

Radiant energy

Electrically neutral molecular or atomic beam devices and...

H05H 304

Patent

active

052123820

ABSTRACT:
This invention provides laser trapping designed to trap a microparticle or a group of microparticles by scanning at least a focused laser beam at high speed.
This laser trapping make it possible to control the formation of microparticles into a specified pattern according to the scanning form of the focused laser beam, fix and transport said pattern, and trap and manipulate the microparticles with lower index of refraction than that of a medium, or other photoreflective microparticles such as a metal. Consequently, with increasing degree of freedom of processing and modification on various microparticles, the field of application expands.

REFERENCES:
patent: 3710279 (1973-01-01), Ashkin
patent: 4023158 (1977-05-01), Corcoran
Block et al., Nature, vol. 338, Apr. 6, 1989, pp. 514-517.

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