Fig. 3: Experiments with the mechano-sensor under an external force Fr.
a WGM transmission spectra for the mechano-sensor. The quality factor (Q factor) of the WGM is approximately 1.8×107. arb. units, arbitrary units. b Spectral evolution of the mechano-sensor as the external force Fr (φ = 180°) increases from 0.129 mN to 0.720 mN. arb. units, arbitrary units. c Responses of the mechano-sensor obtained by tracking the resonance wavelength shift (red curve) under various static forces Fr (φ = 180°, blue curve). d Relations between the resonance wavelength shift and the displacement/static force (φ = 180°). e Relations between the displacement (red curve) and force (blue curve) sensitivities and the position of the applied force (L). f Displacement (red curve) and force (blue curve) sensitivities of the mechano-sensor when the external force Fr is applied in different directions (φ). Data in e–f are means from three independent experiments; error bars correspond to s.d.
