Feedback Control and Characterization of a Microcantilever Using Optical Radiation Pressure
arXiv:cond-mat/0606394 · doi:10.1063/1.2362598
Abstract
We describe a method for feedback-regulation of a microcantilever's response using optical radiation pressure. One laser measures the position of the cantilever and another laser applies a force that is a phase-shifted function of that position. The force is due solely to the momentum of the photons in the laser. The feedback changes the microcantilever's effective quality factor Qeff and effective temperature Teff. Reduction of both Qeff and Teff by more than a factor of 15 is demonstrated. Additionally, we suggest a method for determination of a microcantilever's spring constant using the known force exerted on it by radiation pressure.
10 pages, 3 figures. Updated acknowledgements and used smaller file format for Figure 1
References in corpus (2)
Cited by in corpus (11)
- Feedback cooling of a cantilever's fundamental mode below 5 mK
- Strong thermomechanical squeezing via weak measurement
- Passive Cooling of a Micromechanical Oscillator with a Resonant Electric Circuit
- A New Apparatus for Detecting Micron-Scale Deviations from Newtonian Gravity
- Radiation pressure measurement using a macroscopic oscillator in an ambient environment
- Sensitivity and accuracy of Casimir force measurements in air
- Optical excitation of atomic force microscopy cantilever for accurate spectroscopic measurements
- Quantitative in situ measurement of optical force along a strand of cleaved silica optical fiber induced by the light guided therewithin
- Microfabrication techniques for trapped ion quantum information processing
- Control of quality factor of atomic force microscopy cantilever by cavity optomechanical effect
- Effective quality factor of mechanical resonators under complex-frequency excitations