In optics, the Fraunhofer diffraction equation is used to model the diffraction of waves when the diffraction pattern is viewed at a long distance from the diffracting object, and also when it is view
Computer simulation of Fraunhofer diffraction by a rectangular aperture
Single and double slit diffraction – slit separation is 0.7mm and the slit width is 0.1mm.
Young's interference experiment is any one of a number of optical experiments described or performed at the beginning of the nineteenth century by Thomas Young to demonstrate the wave theory of light.
From a book published in 1807 relating lectures given by Young in 1802 to London's Royal Institution
Title-page of Young's Syllabus of a Course of Lectures on Natural and Experimental Philosophy (1802)