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diffraction effect

См. также в других словарях:

  • Diffraction topography — (short: topography ) is an X ray imaging technique based on Bragg diffraction. Diffraction topographic images ( topographs ) record the intensity profile of a beam of X rays (or, sometimes, neutrons) diffracted by a crystal. A topograph thus… …   Wikipedia

  • Diffraction spike — Diffraction spikes from various stars seen on image taken by HST Diffraction spikes are lines radiating from bright light sources in reflecting telescope images. They are artifacts caused by light diffracting around the support vanes of the… …   Wikipedia

  • Diffraction grating — A very large reflecting diffraction grating. In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The directions of these beams …   Wikipedia

  • Diffraction formalism — Main article: Diffraction Contents 1 Quantitative description and analysis 1.1 General diffraction 1.2 Approximations 1.3 …   Wikipedia

  • Diffraction spectrum — Spectrum Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and… …   The Collaborative International Dictionary of English

  • diffraction — /dəˈfrækʃən / (say duh frakshuhn) noun 1. a modification that light or other radiation undergoes when it passes by the edge of an opaque body, or is sent through small apertures, resulting in the formation of a series of light and dark bands,… …  

  • Talbot effect — thumb|right|325px|The optical Talbot Effect for monochromatic light, shown as a Talbot Carpet . At the bottom of the figure the light can be seen diffracting through a grating, and this exact pattern is reproduced at the top of the picture (one… …   Wikipedia

  • Fresnel diffraction — In optics, the Fresnel diffraction equation for near field diffraction, is an approximation of Kirchhoff Fresnel diffraction that can be applied to the propagation of waves in the near field.[1] The near field can be specified by the Fresnel… …   Wikipedia

  • Atmospheric diffraction — is manifested in the following principal ways:* Fourier optics is the bending of light rays in the atmosphere, which results in remarkable visual displays of astronomical objects, such as depictions on this page.* Radio wave diffraction is the… …   Wikipedia

  • Modified Bragg diffraction in quasicrystals — It is commonly assumed that diffraction in quasicrystals, whether of electrons, of x rays or of neutrons, is Bragg diffraction. Though there are similarities, notably scattering from atomic planes, there are also contrasting differences [ A.J.… …   Wikipedia

  • Knife-edge effect — In electromagnetic wave propagation, the knife edge effect or edge diffraction is a redirection by diffraction of a portion of the incident radiation that strikes a well defined obstacle such as a mountain range or the edge of a building. The… …   Wikipedia

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