Patent ID: 11923101
Assignee: UNIVERSITY OF ROCHESTER
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. A method for modulating mechanical vibrations to produce coherence from an optically levitated mechanical oscillator, comprising:
combining a trap beam with a probe beam to form a single collinear beam without interference between the trap beam and the probe beam;
focusing the single beam in a trap, levitating a mechanical oscillator in the trap beam and illuminating the mechanical oscillator with the probe beam;
isolating the probe beam from the trap beam downstream from the trap;
collecting light from the isolated probe beam scattered by the mechanical oscillator and interfering the scattered light with unscattered light from the probe beam yielding position information of the mechanical oscillator;
generating an amplification force linear in the mechanical oscillator momentum and a cooling force nonlinear in the mechanical oscillator variable position and linear in the momentum from the position information;
simultaneously supplying an amplification signal and a cooling signal representing the generated amplification force and cooling force to an electro-optic modulator; and
modulating the intensity of the trap beam with the electro-optic modulator from the simultaneously supplied amplification signal and a cooling signal to generate coherent motion of the mechanical oscillator.