ELI5: Explain Like I'm 5

Gerchberg–Saxton algorithm

Okay kiddo, let me tell you about the Gerchberg-Saxton algorithm. This is a very special way to make pictures using light.

First, we need something called a hologram. This is like a special picture that is made with lasers. The hologram has a pattern that is like a code and tells the light how to make the picture.

Next, we need a computer to use the Gerchberg-Saxton algorithm. This is a kind of math that helps us make the hologram better.

The computer takes the hologram and does some magic math to it. Then, it uses this new pattern to make the picture better. This happens over and over until the picture is just right.

The Gerchberg-Saxton algorithm is very clever because it can make the picture better without actually looking at it. It's like a puzzle that gets solved on its own!

So with this method, we can make pictures that are very clear and detailed, like the ones you see on TV or in books. It's amazing how computers and lasers can work together to do this.