The light from the light source 6 is made to impinge on {TAIL ~ the rear surface} of {HEAD ~ the cantilever} 1 while oscillating or resonating the cantilever 1 at or near its resonance frequency by the oscillator 17 
The light from the light source 6 is made to impinge on { TAIL ~ the rear surface } of { HEAD ~ the cantilever } 1 while oscillating or resonating the cantilever 1 at or near its resonance frequency by the oscillator 17
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH