Whether youāre losing your mind at a Pink Floyd tribute show or playing with your cat, thereās hardly a situation that wouldnāt be made better with a few lasers. āOptical masersā were first described by physicist Charles Townes in the late ā50s and since then theyāve come to define modern life. Theyāre used to scan groceries at the checkout, read DVDs, guide missiles, perform surgery, and even to produce nuclear fusion.
We see them everywhere and take them for granted. The video in this article sort of explains how they work.
Focus light between mirrors to produce a nice strong beam of a single color.
Easy. Right.
See the video @ How Lasers Work, According to the World's Top Expert