interference fringe

interference fringe

      a bright or dark band caused by beams of light that are in phase or out of phase with one another. Light waves and similar wave propagation, when superimposed, will add their crests if they meet in the same phase (the waves are both increasing or both decreasing); or the troughs will cancel the crests if they are out of phase; these phenomena are called constructive and destructive interference, respectively. If a beam of monochromatic light (all waves having the same wavelength) is passed through two narrow slits (an experiment first performed in 1801 by Thomas Young, an English scientist, who inferred from the phenomenon the wavelike nature of light), the two resulting light beams can be directed to a flat screen on which, instead of forming two patches of overlapping light, they will form interference fringes, a pattern of evenly spaced alternating bright and dark bands. All optical interferometers (optical interferometer) function by virtue of the interference fringes that they produce.

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Universalium. 2010.

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  • interference fringe — Fringe Fringe (fr[i^]nj), n. [OF, fringe, F. frange, prob. fr. L. fimbria fiber, thread, fringe, cf. fibra fiber, E. fiber, fimbriate.] 1. An ornamental appendage to the border of a piece of stuff, originally consisting of the ends of the warp,… …   The Collaborative International Dictionary of English

  • Interference fringe — Interference In ter*fer ence, n. [See {Interfere}.] [1913 Webster] 1. The act or state of interfering; as, the stoppage of a machine by the interference of some of its parts; a meddlesome interference in the business of others. [1913 Webster] 2.… …   The Collaborative International Dictionary of English

  • interference fringe — interferencijos juostelė statusas T sritis Standartizacija ir metrologija apibrėžtis Šviesi arba tamsi sritis, susidariusi bangų interferencijos metu. atitikmenys: angl. interference fringe vok. Interferenzstreifen, m rus. интерференционная… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • interference fringe — noun one of the light or dark bands produced by the interference and diffraction of light • Syn: ↑fringe • Hypernyms: ↑optical phenomenon * * * noun : fringe 2e …   Useful english dictionary

  • Fringe — (fr[i^]nj), n. [OF, fringe, F. frange, prob. fr. L. fimbria fiber, thread, fringe, cf. fibra fiber, E. fiber, fimbriate.] 1. An ornamental appendage to the border of a piece of stuff, originally consisting of the ends of the warp, projecting… …   The Collaborative International Dictionary of English

  • Interference — In ter*fer ence, n. [See {Interfere}.] [1913 Webster] 1. The act or state of interfering; as, the stoppage of a machine by the interference of some of its parts; a meddlesome interference in the business of others. [1913 Webster] 2. (Physics) The …   The Collaborative International Dictionary of English

  • Interference figures — Interference In ter*fer ence, n. [See {Interfere}.] [1913 Webster] 1. The act or state of interfering; as, the stoppage of a machine by the interference of some of its parts; a meddlesome interference in the business of others. [1913 Webster] 2.… …   The Collaborative International Dictionary of English

  • Interference (wave propagation) — Two point interference in a ripple tank. In physics, interference is the phenomenon in which two waves superpose each other to form a resultant wave of greater or lower amplitude. Interference usually refers to the interaction of waves that are… …   Wikipedia

  • fringe — 1. adjective /fɹɪndʒ/ Outside the mainstream 2. noun /fɹɪndʒ/ a) A decorative border. Interference fringe. b) A marginal or …   Wiktionary

  • Interference lithography — (or holographic lithography) is a technique for patterning regular arrays of fine features, without the use of complex optical systems or photomasks. Basic principleThe basic principle is the same as in interferometry or holography. An… …   Wikipedia

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