Micromechanical resonator driven by radiation pressure force
Boales, Joseph A.
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Citation (published version)Joseph A Boales, Farrukh Mateen, Pritiraj Mohanty. 2017. "Micromechanical Resonator Driven by Radiation Pressure Force.." Sci Rep, Volume 7, Issue 1: 16056.
Radiation pressure exerted by light on any surface is the pressure generated by the momentum of impinging photons. The associated force - fundamentally, a quantum mechanical aspect of light - is usually too small to be useful, except in large-scale problems in astronomy and astrodynamics. In atomic and molecular optics, radiation pressure can be used to trap or cool atoms and ions. Use of radiation pressure on larger objects such as micromechanical resonators has been so far limited to its coupling to an acoustic mode, sideband cooling, or levitation of microscopic objects. In this Letter, we demonstrate direct actuation of a radio-frequency micromechanical plate-type resonator by the radiation pressure force generated by a standard laser diode at room temperature. Using two independent methods, the magnitude of the resonator's response to forcing by radiation pressure is found to be proportional to the intensity of the incident light.
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