A scanning microscope having a laser outputting an excitation laser beam
and a fiber member having a first core and a second core. The second core
is generally disposed within the first core and is operable to receive
the excitation laser beam from the laser and transmit the excitation
laser beam to a sample to be tested. A moveable stage supports an end of
the fiber member and/or a sample to be tested and is operable to move the
end of the fiber member and the sample to be tested relative to each
other.