Inverse design and realization of an optical cavity-based displacement transducer with arbitrary responses

Displacement as a basic physical quantity often serves as the intermediate physical quantity of various sensors in terms of its excellent testability. Most sensors transform the quantity to be measured, including force, deformation, acceleration, angle, etc., into the detectable displacement, thus completing the measurement or perception. Therefore, a displacement sensing unit with high accuracy and compactness is the cornerstone of precision sensing and advanced manufacturing and plays an impor...