In the camera of my phone in can see the light of FAP-800-40w-806.5 pumping diode as purple color.
With ceramic tile (i have natural granite/Al2O3/silicon carbide) you see 2D
not 3D as in you see in acrylic 10.6um from co2 laser.
You can estimate roughly the power but not as good as you can see it in a transparent material like acrylic.
Anyway i will try ...