Optical microscopy from 1X to 1000X is achieved with a variety of microscopes. Images can be formed in bright field, dark field, and differential interference contrast (DIC or ‘Nomarski’) modes. Optical microscopy anlaysis is often used before any other techniques to document samples. Color and morphology are important clues in materials identification.
Optical Microscopy Analysis
This technique uses direct visual observation of a sample with white light through a series of lenses. Resolution of about 0.2 µm can be achieved. Morphology, color, opacity, and optical properties are often sufficient to characterize a material. It is nondestructive.