dc.contributor.authorHuang, Jianguo
dc.contributor.authorCai, H.
dc.contributor.authorGu, Y. D.
dc.contributor.authorChin, Lip Ket
dc.contributor.authorWu, J. H.
dc.contributor.authorChen, T. N.
dc.contributor.authorYang, Z. C.
dc.contributor.authorHao, Y. L.
dc.contributor.authorLiu, Aiqun
dc.identifier.citationHuang, J. G., Cai, H., Gu, Y. D., Chin, L. K., Wu, J. H., Chen, T. N., et al. (2017). Torsional frequency mixing and sensing in optomechanical resonators. Applied Physics Letters, 111(11), 111102-.en_US
dc.description.abstractIn 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 50 fm/Hz0.5, which demonstrates a resonant torque sensitivity of 3.58 × 10−21 N m/Hz0.5. This demonstration will benefit potential applications for on-chip RF signal modulation using optical mechanical resonators.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.format.extent5 p.en_US
dc.relation.ispartofseriesApplied Physics Lettersen_US
dc.rights© 2017 The Authors (Published by AIP Publishing). This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of The Authors (Published by AIP Publishing). The published version is available at: [http://dx.doi.org/10.1063/1.4986811]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.subjectAcoustic Noiseen_US
dc.titleTorsional frequency mixing and sensing in optomechanical resonatorsen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.description.versionPublished versionen_US

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