We are focusing with a 1030nm beam in a YVO4 crystal generating "white light" which contains only near-infrared wavelengths from 600nm to around 1100nm. The blue light in the crystal originates from third harmonic generation.
The next picture shows stronger white light generation from 450nm to around 1400nm in a YAG crystal
Both pictures were taken in our lab by Thorsten Naeser and can be soon seen at the attoworld gallery.
If you want to know more about white light generation, then you should read following article: Femtosecond continuum generation in bulk laser host materials with sub-μJ pump pulses (journal access necessary).
Have fun!
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