High-sensitivity monitoring of micromechanical vibration using optical whispering gallery mode resonators

By Dmitry Strekalov, C. Marquardt, Andrey Matsko, J. Bennett, K. Khosla, A. Schliesser, G. Anetsberger, André Xuereb. 2008

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The inherent coupling of optical and mechanical modes in high finesse optical microresonators provides a natural, highly sensitive transduction mechanism for micromechanical vibration. Using homodyne and polarization spectroscopy techniques, we achieve shot-noise limited displacement sensitivities of . In an unprecedented manner, this enables the detection and study of a variety of mechanical modes, which are identified as radial breathing, flexural and torsional modes using three-dimensional finite element modeling. Furthermore, a broadband equivalent displacement noise is measured and found to agree well with models for thermorefractive noise in silica dielectric cavities. Implications for ground-state cooling, displacement sensing and Kerr squeezing are discussed.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/55eaf2693d224b178f2d69a1bfcb00353d4ddaac

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

Cavity magnonics (2021, background): “These modes can have Qfactors as high as 108 (Armani et al., 2003) and strongly enhance interaction effects in non-linear optics (Braginsky et al., 1989), optomechanics (Schliesser et al., 2008), and biosensing (Vollmer and Arnold, 2008).”
Resolved-sideband cooling and position measurement of a micromechanical oscillator close to the Heisenberg uncertainty limit (2009, background): “: optical interferometric measurement of mechanical displacement at the attometre leve”
Ultralow dissipation optomechanical resonators on a chip (2008, methodology): “Moreover, this coupling can be used to perform highly sensitive measurements of displacemen”