论文期刊

Torsional Frequency Mixing and Sensing in Optomechanical Resonators




作者: J. G. Huang, H. Cai, Y. D. Gu, L. K. Chin, J. H. Wu, T. N. Chen, and A. Q. Liu
发表/完成日期: 2017-11-02
期刊名称: Appl. Phys. Lett.
期卷: Vol. 111, No.11
相关文章: APL_Torsional frequency mixing and sensing in optomechanical resonators.pdf   
论文简介
In this letter, a torsional optomechanical resonator for torque sensing and torsional mechanical frequency mixing is experimentally demonstrated. The torsional mechanical resonator is embedded into a split optical racetrack resonator, which provides high sensitivity in measuring torsional mechanical motion. Using this high sensitivity, torsional mechanical frequency mixing is observed without regenerative mechanical motion. The displacement noise floor of the torsional mechanical resonator is 5065fm/Hz0.5, which demonstrates a resonant torque sensitivity of 3.5865×6510612165N m/Hz0.5. This demonstration will benefit potential applications for on-chip RF signal modulation using optical mechanical resonators.