Damping of optically levitated particles by feedback and beam sh

Details Damping of optically levitated particles by feedback and beam sh Damping of optically levitated particles by feedback and beam sh

1977-04-22

1978-05-30

Dixon, Harold A.

Radiant energy

Electrically neutral molecular or atomic beam devices and...

250312, 250491, 250492R, G01N 2178

Patent

active

040925358

ABSTRACT:
An improvement on an optical levitation device is disclosed for damping perturbations of the position of a particle levitated in vacuum. It combines feedback control of the supporting laser beam with adjustment of the beam shape and size in order to damp perturbations in both the vertical and horizontal directions by means of the vertical feedback damping apparatus.

REFERENCES:
patent: 3808550 (1974-04-01), Ashkin
patent: 3955089 (1976-05-01), McIntyre
patent: 3997788 (1976-12-01), Boux
patent: 4023158 (1977-05-01), Corcoran
"Acceleration & Trapping of Particles by Radiation Pressure" by Ashkin, Physical Review Letters, vol. 24, No. 4, Jan. 26, 1970, pp. 156-158.

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