A 25-element defect-free array of levitated microspheres in vacuum is demonstrated using time-shared optical traps, with sub-nanometer per root hertz camera-based displacement sensitivity.
Neuromorphic detection and cooling of microparticles in arrays
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abstract
Micro-objects levitated in a vacuum are an exciting platform for precision sensing due to their low dissipation motion and the potential for control at the quantum level. Arrays of such sensors would offer increased sensitivity, directionality, and in the quantum regime the potential to exploit correlation and entanglement. We use neuromorphic detection via a single event based camera to record the motion of an array of levitated microspheres. We present a scalable method for arbitrary multiparticle tracking and control by implementing real-time feedback to {simultaneously cool the motion of three uncoupled microscale objects
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physics.optics 1years
2024 1verdicts
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Optical Levitation of Arrays of Microspheres
A 25-element defect-free array of levitated microspheres in vacuum is demonstrated using time-shared optical traps, with sub-nanometer per root hertz camera-based displacement sensitivity.