Interference visibility

Interference visibility is like when you look at bubbles in the bathtub and they form rings when they pop. Imagine you have two flashlights and you shine them both at the same time on the same spot. The light waves from each flashlight will overlap and create a pattern of bright and dark areas on the surface where the flashlights are shining. This pattern is called an interference pattern.

Interference visibility measures how strong the interference pattern is. It's like looking at the rings in the bubbles and seeing how clear they are. If the rings are very visible and distinct, then the interference visibility is high. If the rings are blurry or faint, then the interference visibility is low.

Scientists use interference visibility to study things that are too small to see with the naked eye, like atoms and molecules. They can shine a laser on these tiny particles and look at the interference pattern that is created. If the interference visibility is high, that means they can get a good picture of the particle and learn more about its properties. If the interference visibility is low, they might need to use a different method to study the particle.