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MIT 8 03 - Diffraction

School name Massachusetts Institute of Technology

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Physics 8 03 Vibrations and Waves Lecture 20 Diffraction Last time Interference from multiple sources Phased arrays Beaming sin N 2 I I0 sin 2 2 2 d sin Diffraction What happens when EM wave hits a finite obstacle Shadows from edges of objects Light passing through apertures bends Formalism Huygens Fresnel principle Treat aperture as an array of many infinitesmal radiating sources that superpose interfere Examples systems with simple geometries Rectangular slit Circular aperture

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MIT 8 03 - Diffraction

School: Massachusetts Institute of Technology

Course: 8 03- Physics III

Pages: 3

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MIT 8 03 - Diffraction

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