What is Deep ultraviolet (DUV)?

Deep ultraviolet (DUV) is light that’s really short and has a lot of energy, like the invisible part of sunlight that helps make your skin tan but also can cause sunburn if you’re out too long.

Imagine you have a flashlight that can blink so fast, it’s almost like it's on all the time. But instead of regular light, this flashlight sends out tiny waves, so tiny, they're even smaller than the ones in your favorite toy laser. These tiny waves are called deep ultraviolet (DUV) light, and because they’re so short and powerful, they can do things like help scientists make really small parts for phones or computers.

You know how sometimes the sun feels extra hot on your skin? That’s because it sends out different kinds of light. DUV is like the supercharged part of sunlight, it has more energy, and it can affect things in ways regular light can’t. Scientists use this special kind of light to do cool stuff, just like how you might use a magnifying glass to make a tiny flame.