Posted by rbanffy 8 hours ago
We have a hard enough time building shipping-container sized devices that reflect extreme ultraviolet though... so I think a handheld gamma ray laser is off the table for this century.
… now, if that setup could be drawn out into a fiber laser as cladding with a wide spectrum neural amplifying core (if such a material exists) that could maybe be something idk
if you do the exact right color you can make certain things melt very precisely.
So like if you can get just the right frequency you could cause a skin protein molecule to fall apart, which might be nicer than scalpels.
Maybe you could weld it too. A "protoplaser" like in startrek.
A rainbow gives you both red and blue; mute everything else, and you'll get magenta. That's what magenta pigments do when illuminated by white light (which is a rainbow scrambled).
Here's a nice visualization of color perception (there are more modern ones, but we used the 1931 color space when I was working in the field). The horseshoe shape on the outside is the single wavelength colors.