Cathodoluminescence
Cathodoluminescence is a process where materials subjected to electron excitation, absorb the electrons and re-emit the energy as visible light.
The materials may include crystals, minerals, ceramics, glass and other amorphous solids. Brilliant luminescence may be observed in the visible spectrum but energy may also be emitted in UV and IR wavelengths.
In this laboratory we can provide color photographs of the visible light luminescence and we can also record emission spectrographs to establish the cause of the luminescence. Activator impurity elements that are often responsible for the luminescence can be detected in the ppm and ppb range.
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