This is bit on a tangent but it’s bit amusing. The term for that is maser. That term came before laser which was derived from it. And now we have come the ful

This is bit on a tangent but it’s bit amusing. The term for that is maser. That term came before laser which was derived from it. And now we have come the full circle and are calling masers microwave lasers instead of lasers ”maser but for visible light”