Diffraction spectrum
Diffraction Dif*frac"tion, n. [Cf. F. diffraction.] (Opt.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action of a grating of fine lines or bars. [1913 Webster]

Remarked by Grimaldi (1665), and referred by him to a property of light which he called diffraction. --Whewell. [1913 Webster]

{Diffraction grating}. (Optics) See under {Grating}.

{Diffraction spectrum}. (Optics) See under {Spectrum}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • 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 spectrum — difrakcinis spektras statusas T sritis fizika atitikmenys: angl. diffraction spectrum vok. Beugungsspektrum, n rus. дифракционный спектр, m pranc. spectre de diffraction, m …   Fizikos terminų žodynas

  • 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 observed… …   The Collaborative International Dictionary of English

  • Spectrum analysis — 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 — Dif*frac tion, n. [Cf. F. diffraction.] (Opt.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action… …   The Collaborative International Dictionary of English

  • Diffraction grating — Diffraction Dif*frac tion, n. [Cf. F. diffraction.] (Opt.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by… …   The Collaborative International Dictionary of English

  • 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 grating — n. Optics a plate of glass or polished metal ruled with a series of very close, equidistant, parallel lines, used to produce a spectrum by the diffraction of reflected or transmitted light …   English World dictionary

  • diffraction — [di frak′shən] n. [ML diffractio < L diffractus: see DIFFRACT] 1. the breaking up of a ray of light into dark and light bands or into the colors of the spectrum, caused by the interference of one part of a beam with another, as when the ray is …   English World dictionary

  • Diffraction — Computer generated intensity pattern formed on a screen by diffraction from a square aperture …   Wikipedia

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