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(Color online) The detector mechanical resonance frequency can be matched to the electric field frequency. Images (a) through (e) depict an incoming sinusoidal electric field. The charged cantilever responds to the electric field by deflecting sinusoidally, shown for time t = t 0 to t = t 4. One complete cycle of motion is shown during this time interval. Once the wave passes the detector, the detector stops responding.
Response of a cantilever antenna to electromagnetic waves as a function of the distance from the source for two different applied bias voltages.
Response to an electric field E = 10−2 V/m as a function of mechanical frequency. The thermomechanical noise is also shown as a function of frequency. The signal to noise ratio was >100 which gives a limit of detection of <10−4 V/m.
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