Optimal control of force microscope cantilevers. II. Magnetic coupling implementation
- 15 August 1996
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 80 (4), 1959-1964
- https://doi.org/10.1063/1.363086
Abstract
We describe the implementation of optimal controllers for damping the motion of cantilevers used in magnetic resonance force microscopy. We demonstrate that optimal control is achievable and that torsional magnetic coupling provides an effective actuation method. Cantilever Brownian vibrational amplitude was reduced from 2 to 0.16 Å and resonant quality was reduced from 2000 to 5. Applied control fields were sufficiently small that they would not affect magnetic resonance phenomena.Keywords
This publication has 13 references indexed in Scilit:
- Optimal control of force microscope cantilevers. I. Controller designJournal of Applied Physics, 1996
- Anharmonic modulation for noise reduction in magnetic resonance force microscopyReview of Scientific Instruments, 1995
- Magnetic resonance force microscopyReviews of Modern Physics, 1995
- Force Detection of Nuclear Magnetic ResonanceScience, 1994
- Magnetic resonance detection and imaging using force microscope techniques (invited)Journal of Applied Physics, 1994
- First images from a magnetic resonance force microscopeApplied Physics Letters, 1993
- Signal-to-noise ratios in inductive and mechanical detection of magnetic resonancePhysical Review Letters, 1993
- Regulation of a microcantilever response by force feedbackApplied Physics Letters, 1993
- Mechanical detection of magnetic resonanceNature, 1992
- The theory of oscillator-coupled magnetic resonance with potential applications to molecular imagingReview of Scientific Instruments, 1992