Beside the demonstration of wave-behavior, the Arago spot also has a few other applications. One of the ideas is to use the Arago spot as a straight line reference in alignment systems.Feier et al. Another is to probe aberrations in laser beams by using the spot's sensitivity to beam aberrations. Finally, the aragoscope has been proposed as a method for dramatically improving the diffraction-limited resolution of space-based telescopes.
Beside the demonstration of wave-behavior, the Arago spot also has a few other applications One of the ideas is to use the Arago spot as a straight line reference in alignment systems.Feier et al. Another is to probe aberrations in laser beams by using the spot's sensitivity to beam aberrations Finally, the aragoscope has been proposed as a method for dramatically improving the diffraction-limited resolution of space-based telescopes