Diffraction on Square Aperture

Diffraction on Square Aperture

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Caption: Diffraction on square aperture. A small square aperture (130x130 micron) is placed in a beam produced by a Helium-Neon laser operating at 632.8 nm. The resulting Fraunhofer diffraction pattern is observed at about 23 cm away. The central diffraction lobe is over saturated so that the outer fringes are more prominent. Digitally manipulated.

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Keywords: aperture, beam, demo, demonstration, diffract, diffraction, diffraction pattern, education, educational, effect, experiment, fraunhofer, green laser, he, helium, interference, laser, light, monochromatic, ne, neon, optical, optics, pattern, phenomenon, physics, rectangular, red, square aperture

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