Si. Bozhevolnyi et al., CORRELATION BETWEEN OPTICAL AND TOPOGRAPHICAL IMAGES FROM AN EXTERNALREFLECTION NEAR-FIELD MICROSCOPE WITH SHEAR FORCE FEEDBACK, Applied optics, 34(19), 1995, pp. 3793-3799
An external reflection scanning near-field optical microscope with she
ar force regulation of the tip-surface distance is described. Near-fie
ld optical and shear force topographical images are compared for vario
us samples. It is shown that the most important correlative relationsh
ips between these images can be deduced from symmetry considerations.
The possibility of extracting additional information from the optical
images is demonstrated on images of human blood cells.