Europium doped red target with lasers

[Cyparagon]

Definitely a red. The higher the wavelength, the better reaction you get. 30mW of blue lights it up about 10 times brighter than 150mW of red.

 

[a_pyro_is]

Yep, higher energy quanta and all that other stuff I pretend to understand. But I just checked on another monitor, and it still looks a bit pink to me. I guess I'll have to order one for myself to go with my first greenie.

 

[timelord]

It looks red when struck but pink when not struck in the daylight. The best effect is when it is dark.......