Diffraction experiment, simulation

Diffraction experiment, simulation

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This image is part of the sequence science and technology: Interference diffraction pattern graphs

Credit: CHRISTIAN KOCH, MICROCHEMICALS/SCIENCE PHOTO LIBRARY

Caption: Diffraction experiment. Simulation showing the variation in the interference pattern produced by light waves passing through a multi-slit aperture. N is the number of slits and D is the distance between slits (2.2 micrometres). The wavelength of the light used here is 633 nanometres. The diffraction causes the light waves to overlap, causing constructive and destructive interference. The intensity of the light (red) is shown on a diffusing screen, and as a curve (white). In these nine images, N ranges from 2 (upper left) to 80 (lower right). As the number of slits increases, the interference maxima become progressively sharper.

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