The applications of near-field scanning optical microscopy (NSOM) to variou
s nanostructured materials are reviewed. The review begins with a descripti
on of experimental aspects of NSOM and the various contrast mechanisms avai
lable with the technique. Applications of NSOM to a variety of different ma
terials are then addressed including: NSOM of semiconductor heterostructure
s, NSOM of polymers and molecular crystals, and NSOM of Langmuir-Blodgett f
ilms and layered organic self-assemblies.