Power play: Choosing the right laser for the job

You’ve surely heard the old adage: When you have a hammer, everything looks like a nail. That’s the complete antithesis of the laser spectrum: with colours ranging all the way from infrared to xray, and materials ranging from gas to liquid, the options are manifold. All of which means that instead of trying your best to make a solution fit your challenge, lasers can be manipulated, adjusted and tweaked to do just what you want them to do.