We launched the laser on 99% power on a metal piece through the acetic acid.
The laser beam in unfocused (+-1-3 mm) [facal range is 80 mm]
The green flash happens ever 1-2 seconds.
For an experiment we used:
- an old HDD disk
- an acetic acid (9%)
- a 10 watt Endurance DPSS laser module (Nd:YAG 1064 nm, 7-10 ns pulse width, Frequency: 25-30 kHz, laser beam spot 40 uM, TTL power: 99%)
For an effect detection we used:
A mirror Canon 60D camera with 15-85 lens (max zoom) + green filter
Red flashes (1064 / 808 nm)
Green flashes (~532 nm)
A video of the experiment
About an Endurance 10 watt DPSSL