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Schematic representation of a doubly clamped nanomechanical resonator of length and diameter . An applied force leads to a bending profile as indicated.
Solid lines indicate typical response of a Duffing oscillator as a function of frequency with increasing driving strength. The solid lines are plots of equation , where is chosen 1, for , 2. (Ref. 13). The dashed line is a plot for , indicating an arbitrarily chosen rms noise floor.
Dynamic range at 4 K for several doubly clamped resonators as indicated in the figure and Table I. The shaded region below 0 dB indicates the absence of a linear region of operation.
Input parameters for Fig. 3.
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