Yoctonewton force detection based on optically levitated oscillator.

ABSTRACT: Optically levitated oscillators in high vacuum have excellent environmental isolation and low mass compared with conventional solid-state sensors, which makes them suitable for ultrasensitive force detection. The force resolution usually scales with the measurement bandwidth, which represents the ultimate detection capability of the system under ideal conditions if sufficient time is provided for measurement. However, considering the stability of a real system, a method based on the Allan variance is more reliable to evaluate the actual force detection performance. In this study, a levitated optomechanical system with a force detection sensitivity of 6.33 ± 1.62 zN/Hz^1/2 was demonstrated. And for the first time, the Allan variance was introduced to evaluate the system stability

SUBMITTER: Liang T 

PROVIDER: S-EPMC11197508 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature