Fig. 5: Experimental demonstration of signal transduction and amplification using the nonlinear phonon-cavity system at the blue pump.
From: Nonlinearity-mediated digitization and amplification in electromechanical phonon-cavity systems
a The frequency response curves as functions of ω2 in downward frequency sweep measurements. b Fast measurement of ωb as functions of ω2. The white circles are the PLL measured data, and the solid colors on both sides offer visual cues to the eye. c The output shift in ωb as functions of ω2 in the digitization region measured by PLL. d The output ωb as functions of ω2 in the amplification region measured by PLL.
