If you look up “What is a lightsaber made out of” on the internet, the amount of information would rack your brain. And it actually would take you a bit to comprehend the amount of information out there. So we’ll skip that for now. But it may be something to look forward to in the form of a feature. However, for now, check out this video on what could be the closest thing “normal” people can get their hands on in regards to a lightsaber. And by “normal” we mean people who can’t afford the nuclear powered plasma reactor it would take to power an actual lightsaber.
Ideally, you’d want the blade to be more concentrated and a little shorted. But of course, there’s no real way to contain a flame like that. At least not right now. The same can be said about those trying to make a working lightsaber. Without something to contain the laser, the beam would be continuous. It’s also a big reason why he can’t swing it fast. He would just blow out the flame.
In the Star Wars universe, the lightsaber beam somehow arcs back on itself. That’s how people are able to fight with them. Also, because he’s using liquid fuel as a source to power the flame, it will eventually run out of power.
Still, you have to give credit where credit is due. First, you can change the color of the flame. Second, the best demonstration has to be when he uses the weapon on the picture of Jar Jar. Not just because it’s a picture of Jar Jar, but because when he cuts along the photo, you can see the line where the paper burned.
Star Wars The Force Awakens is now out in theaters.