We Can Figure This Out.org
Virtual Lab: Atomic Force Microscope (AFM)
 University of Virginia
             
 
© 2003-Present, John C. Bean
 
But things change as the sample is now reintroduced. At the bottom of each swing, the point of the cantilever strikes the sample, kicking it upward.

This alters the position of the reflected laser beam on the photodetector, shifting its oscillations slightly towards the rear.
 
Last Scene
Next Scene