Coherent perfect absorber
Okay, imagine you have a toy that can absorb other toys when they come close to it. Now, if you have two toys that absorb each other when they come close, they are like best friends. So, when we say they are "coherent," it means they are working together perfectly just like best friends.
Now, let's say one of these toys is able to absorb only the toys of a specific color, let's say red. It won't absorb other colored toys like blue or green. This toy is like a "perfect absorber" for red toys.
Now, if we have a pair of toys that are coherent with each other and one of them is a perfect absorber for a specific color, we get something called a "coherent perfect absorber." This means that this pair of toys will work together in a perfect way and absorb all toys of the specific color that the perfect absorber is designed for.
In the real world, this concept is used to create advanced materials that can absorb light or other forms of energy perfectly, depending on their properties. This is very useful in many different fields like medicine, energy, and telecommunications.
Now, let's say one of these toys is able to absorb only the toys of a specific color, let's say red. It won't absorb other colored toys like blue or green. This toy is like a "perfect absorber" for red toys.
Now, if we have a pair of toys that are coherent with each other and one of them is a perfect absorber for a specific color, we get something called a "coherent perfect absorber." This means that this pair of toys will work together in a perfect way and absorb all toys of the specific color that the perfect absorber is designed for.
In the real world, this concept is used to create advanced materials that can absorb light or other forms of energy perfectly, depending on their properties. This is very useful in many different fields like medicine, energy, and telecommunications.