Description

The image is a series of diagrams and graphs that explain the concept of a laser beam. The diagrams show the different stages of the laser beam, from the initial point of emission to the final point of absorption. The graphs illustrate the intensity of the laser beam at various points along its path. There are three main diagrams in the image. The first one is a graph that shows the intensity of the laser beam at different points along its path. The second one is a diagram that illustrates the different stages of the laser beam, including the emission, propagation, and absorption stages. The third one is a graph that shows the relationship between the laser beam's intensity and its distance from the source.