Result description
This study demonstrates that a driven optomechanical system can achieve force-gradient sensing with a monotonic and minimally disturbed signal response. Using Floquet theory and numerical analysis, it shows that fluctuations remain low despite the added drive. The approach offers a practical advantage for precision measurement tasks, particularly in scanning probe applications like atomic force microscopy.
We investigate force-gradient sensing using a mechanically driven resonator and two-tone backaction-evading measurement in cavity optomechanics, revealing a stable, monotonic response region ideal for precision readout. Floquet analysis shows that added fluctuations remain minimal, maintaining near-ideal sensitivity. This result is relevant for high-resolution sensing applications such as atomic force microscopy and aims to inform experimental strategies in quantum-limited force detection.
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R&D, Technology and Innovation aspects
Current stage is basic research. Next step is applying it to experiments.
Scientific results can be rederived.
Result submitted to Horizon Results Platform by STOCKHOLMS UNIVERSITET
