When a laser beam is incident on many small objects such as lycopodium powder, the resulting diffraction pattern is similar to the diffraction pattern of a small circular aperture (Airy's disk pattern ...

This diffraction causes the light to form a diffraction pattern, known as the Airy disk, at the focal plane of the microscope. The Airy disk consists of a central bright spot surrounded by concentric ...

An Airy beam is a very unusual ... Other advantages include its immunity to normal spreading (diffraction) and self-healing capability, which renders the light beam capable of 'repairing' itself ...

Use the lab jacks to elevate the fringe pattern to a screen, if necessary. Turn off the laser. Turn on the laser. Turn off the room light to see the diffraction pattern more easily. Point out the Airy ...

If the wavefronts proceeding to a given point image are spherical, concentric, and centered at the point image for a given field of view, then the imagery will be geometrically perfect, or diffraction ...