The state of polarization of a given beam of light is modified upon reflection from (or
transmission through) an object. The resulting change of the polarization state conveys
information about the structure
and certain physical properties of the illuminated region. Polarization microscopy
is a variant of conventional
optical microscopy that enables
one to monitor these changes over a small area of a specimen.
Such observations then allow the user to identify and analyze
the specimen's structural and other physical features.
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