Cool laser experiments.
Myself, I prefer the ones I can do with a simple 3mW laser.
Transmutations induced by low power 3mW laser under hydrogen atmosphere
https://freerepublic.com/focus/f-chat/4040250/posts
I had one of those helium neon lasers back in the 80s.
It seemed strange that a recent experiment would use one instead of a solid state emitter, but it seems they were trying to replicate a few earlier experiments, not trying to understand or expand the box.
and again I wish people would use Pt since I have a lot more of that than I do Pd