ABSTRACT
One can obviously add to the list of positives the use of polarization, electrooptical effects, and the recent phenomenal advances with optical fiber probing techniques. However, on the negative side there are two major factors: I. Spatial resolution. The well-known diffraction limit, which is on the order
2. Attenuation. Penetration of samples is limited, opening the way to x-ray, magnetic resonance, acoustical, and other imaging techniques.
