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- Diffraction abstract "Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit. In classical physics, the diffraction phenomenon is described as the interference of waves according the Huygens Fresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength. Similar effects occur when a light wave travels through a medium with a varying refractive index, or when a sound wave travels through a medium with varying acoustic impedance. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light, X-rays and radio waves.Since physical objects have wave-like properties (at the atomic level), diffraction also occurs with matter and can be studied according to the principles of quantum mechanics. Italian scientist Francesco Maria Grimaldi coined the word "diffraction" and was the first to record accurate observations of the phenomenon in 1660.While diffraction occurs whenever propagating waves encounter such changes, its effects are generally most pronounced for waves whose wavelength is roughly comparable to the dimensions of the diffracting object or slit. If the obstructing object provides multiple, closely spaced openings, a complex pattern of varying intensity can result. This is due to the superposition, or interference, of different parts of a wave that travels to the observer by different paths (see diffraction grating).The formalism of diffraction can also describe the way in which waves of finite extent propagate in free space. For example, the expanding profile of a laser beam, the beam shape of a radar antenna and the field of view of an ultrasonic transducer can all be analyzed using diffraction equations.".
- Diffraction thumbnail Laser_Interference.JPG?width=300.
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- Diffraction wikiPageExternalLink interference.
- Diffraction wikiPageExternalLink tales-from-the-prep-room-diffraction,.
- Diffraction wikiPageExternalLink index.php?title=An_Introduction_to_The_Wigner_Distribution_in_Geometric_Optics.
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- Diffraction wikiPageExternalLink Diffraction_Effects.pdf.
- Diffraction wikiPageExternalLink index.php.
- Diffraction wikiPageExternalLink diffraction.
- Diffraction wikiPageExternalLink wave2d.
- Diffraction wikiPageExternalLink diffraction.html.
- Diffraction wikiPageExternalLink ch05.html.
- Diffraction wikiPageExternalLink kmath636.htm.
- Diffraction wikiPageExternalLink diffraction.
- Diffraction wikiPageExternalLink Diffraction.htm.
- Diffraction wikiPageExternalLink Diffraction2.htm.
- Diffraction wikiPageExternalLink Diffraction3.htm.
- Diffraction wikiPageExternalLink index-en.html.
- Diffraction wikiPageExternalLink watch?v=uPQMI2q_vPQ.
- Diffraction wikiPageID "8603".
- Diffraction wikiPageRevisionID "606489435".
- Diffraction hasPhotoCollection Diffraction.
- Diffraction subject Category:Concepts_in_physics.
- Diffraction subject Category:Diffraction.
- Diffraction comment "Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit. In classical physics, the diffraction phenomenon is described as the interference of waves according the Huygens Fresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength.".
- Diffraction label "Beugung (Physik)".
- Diffraction label "Diffractie".
- Diffraction label "Diffraction".
- Diffraction label "Diffraction".
- Diffraction label "Diffrazione".
- Diffraction label "Difracción (física)".
- Diffraction label "Difração".
- Diffraction label "Dyfrakcja".
- Diffraction label "Дифракция".
- Diffraction label "حيود".
- Diffraction label "回折".
- Diffraction label "衍射".
- Diffraction sameAs Difrakce.
- Diffraction sameAs Beugung_(Physik).
- Diffraction sameAs Περίθλαση.
- Diffraction sameAs Difracción_(física).
- Diffraction sameAs Diffraction.
- Diffraction sameAs Difraksi.
- Diffraction sameAs Diffrazione.
- Diffraction sameAs 回折.
- Diffraction sameAs 회절.
- Diffraction sameAs Diffractie.
- Diffraction sameAs Dyfrakcja.
- Diffraction sameAs Difração.
- Diffraction sameAs m.02d6t.
- Diffraction sameAs Q133900.
- Diffraction sameAs Q133900.
- Diffraction wasDerivedFrom Diffraction?oldid=606489435.
- Diffraction depiction Laser_Interference.JPG.
- Diffraction isPrimaryTopicOf Diffraction.
