Any one of a group of techniques
including Atomic Force Microscopy (
AFM), Scanning Tunneling Microscopy (
STM), Magnetic Force Microscopy (
MFM), Chemical Force Microscopy (
CFM) Lateral Force Microscopy (LFM) and
Near Field Scanning Optical Microscopy (
NSOM) where a surface is imaged at high
(and in some cases atomic) resolution by rastering
an atomically sharp tip in close, but not direct,
contact with the surface back and forth accross
it. The measurement of the strength of the interaction
between the tip and the surface is combined with
the measurement of the relative position of the
tip to produce an image of interaction strength
as a function of position which (depending on
the particular technique) represents surface topography
or chemistry.