Fluorescing with 532nm

[Pontiacg5]

I have one of those green laser targets, I like using it to focus my green laser down as much as possible. A quick on/off flash will show the beam size really nicely.

Of course protective goggles are good for this too

 

[chipdouglas]

also just for fun... those orange street safty cones floures with greenies as well as red pool table felt.

 

[Bluefan]

try focussing a green laser on a Ti:sapphire crystal. Glow bright red and makes nice ultrashort pulses

 

[Cyparagon]

yeah, I'll just pick one up from the local gas station.