Raman spectra of this section
can be found
The fluorescence appears at the
frontier between dark and clear regions in this section.
Other view of this section,
reflection illumination with the 405nm laser.
The yellow fluorescence appears at the rim of dark
areas. Some blue fluorescence is also visible.
Composite view: white light
transmission + 405nm laser illumination.
White light illumination of the same
The blue fluorescent regions appear very dark with
Same section between crossed
The blue fluorescent areas are dark thus not
Yellow-orange fluorescence spectrum.