If you’re a fan of science fiction, or even of movies in general, you’ve more than likely seen a Hollywood-ized version of something getting blasted with a laser. Let’s see, there’s the “pew pew” sound, a “bolt” of laser (either green, blue, or red in color) shoots out the end of what looks suspiciously like an AK-47 spray painted silver, the laser bolt hits someone or something, there’s a crunching/popping sound and a shower of sparks, and if the laser hit: A) a person, they drop over dead, or B) a thing, there’s either a hole blasted in it or a charred impact mark.
That being the general, though wholly uninformed, image of lasers I had in my mind, I was naturally a bit concerned when I found the website for Arrow Cryogenics, a company that provides green, UV, and YAG laser marking services. At first, I thought, “Wouldn’t that just burn through whatever it is your ‘marking’?” Then I realized that was ridiculous, because in real life, lasers aren’t actually used as weapons by space armadas. (It probably didn’t help that I just watched a three-hour Battlestar Galactica marathon.)
Then I thought, what the H-E-double-stuff-Oreo is a YAG laser?