TERMIUM Plus^®

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Photorefractive materials are being investigated as candidate materials for recording the holographic interconnections between the neurons.  1, fiche 1, Anglais, - photorefractive%20crystal

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 OBS

Matériau d'enregistrement pour l'holographie.  2, fiche 1, Français, - cristal%20photor%C3%A9fractif

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Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

If a plane-wave reference is used for recording and for reconstruction, then the reconstructed image will coincide with the magnified image of the object in amplitude, although the phase will contain the curvature due to the imaging lens. Alternatively, holographic interference of the object and the plane-wave reference can be formed first and its magnified image projected near the hologram plane...  2, fiche 2, Anglais, - holographic%20interference

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… whatever laser light is used, a [holographic optical element(HOE) ] is now a serious candidate to replace a conventional optical element, such as in supermaket scanners, [compact disc/digital video disc(CD/DVD) ] players, automotive and aircraft heads-up displays, and so forth. These elements can, of course, be made by exposing a holographic recording material, …  3, fiche 3, Anglais, - holographic%20recording%20material

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Fiche 4,  Justifications,  Anglais

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Although the element … has its maximum efficiency at 800 [nanometres(nm) ], this wavelength can be changed during the recording step, so it is possible to construct holographic elements adapted to a particular region of the spectrum.  2, fiche 4, Anglais, - holographic%20element

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Fiche 5,  Justifications,  Anglais

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[A holographic] recording whereby the object is illuminated by two pulses, separated by a time interval, from a Q-switched laser source.  2, fiche 5, Anglais, - double%2Dpulsed%20holography

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Each pulse is divided into reference and object beams, and produces an interference pattern on the photographic medium.  2, fiche 5, Anglais, - double%2Dpulsed%20holography

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Fiche 6,  Justifications,  Anglais

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A holographic recording requires a second light beam(the reference beam) to be directed onto the recording medium.  2, fiche 6, Anglais, - holographic%20recording

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Fiche 7,  Justifications,  Anglais

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In the lack of polymer lenses delivered to the chip surface, a commercial chip can be used to convert an optical microscope into a holographic recording system.  2, fiche 7, Anglais, - holographic%20recording%20system

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Fiche 8,  Justifications,  Anglais

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… the twin-image problem of conventional holography is a direct consequence of the fact that the hologram is recorded on a two‑dimensional surface. Like optical volume holography, which overcomes this problem by recording a diffraction pattern on a thick photographic emulsion, multienergy [holographic crystallography] HXT does so by recording the pattern in a volume of reciprocal space.  2, fiche 8, Anglais, - optical%20volume%20holography

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Fiche 9,  Justifications,  Anglais

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Digital holographic interferometry is based on the digital recording and storage of two or more holograms in different states of the object(where the illumination with different laser light colors may be regarded as different states of the object).  2, fiche 9, Anglais, - digital%20holographic%20interferometry

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Fiche 10,  Justifications,  Anglais

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… the output of any real-time holographic interferometer contains a term which is a function of the phase differences introduced in any beam of the hologram between the recording and reconstructing steps in addition to those variations in intensity which result from the intensities of the beams themselves.  2, fiche 10, Anglais, - real%2Dtime%20holographic%20interferometer

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Fiche 11,  Justifications,  Anglais

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A technique of recording in which sounds (or other input data) are converted into digital bits representing the amplitude of the signal at each of about 40,000 equal intervals per second and recorded on a small thin disk or on tape.  2, fiche 11, Anglais, - digital%20recording

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Small irregularities in a holographic medium can distort the message. That is less likely to happen with digital recording, as a distorted one or zero is usually still recognizable.  3, fiche 11, Anglais, - digital%20recording

Fiche 11,  Justifications,  Français

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Enregistrement fait par procédé numérique qui assure aux disques microsillons du commerce une plus grande fidélité.  2, fiche 11, Français, - enregistrement%20num%C3%A9rique

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L'adjectif digital en français, signifie "relatif aux doigts" et n'a rien à voir avec les chiffres.  2, fiche 11, Français, - enregistrement%20num%C3%A9rique

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Técnica de grabación mediante la cual los sonidos se convierten en bits digitales representando la amplitud de la señal aproximadamente a 40 000 intervalos iguales por segundo y registrados en un pequeño disco delgado o en cinta.  1, fiche 11, Espagnol, - grabaci%C3%B3n%20digital

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Fiche 13,  Justifications,  Anglais

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A light sensitive emulsion made up of a solution of dichromate compound, usually ammonium dichromate, in the presence of a gelatin substrate. Exposure results in the crosslinking of gelatin molecules with those of the dichromate compound.  1, fiche 13, Anglais, - dichromated%20gelatin

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This material offers one of the most exciting mediums for commercial display holographic. Dichromated gelatin comes close to being the ideal holographie recording material.  1, fiche 13, Anglais, - dichromated%20gelatin

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Record number: 13, Textual support number: 1 CONT

Les gélatines dichromatées (...) sont les modulateurs de phase pouvant fonctionner en hologramme épais (...). Elles sont constituées de celluloides variés, photosensibilisés par des chromates et des déchromates d'ammonium, de sodium et de potassium.  1, fiche 13, Français, - g%C3%A9latine%20dichromat%C3%A9e

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Fiche 14,  Justifications,  Anglais

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With the D-HUD, a form of holographic recording is used to produce a thin-film lens, covering the whole area of the curved combining glass.(...) This thin-film lens is produced by the use of a laser which records, photographically, a form of diffraction grating within a layer of gelatin which is coated onto the curved combining glass. After processing, the thin film lens is covered by a second glass layer to form a sandwich, with the "lens" formed by changes in the refractive index of the gelatin layer, providing the effect of a diffraction grating.  1, fiche 14, Anglais, - thin%2Dfilm%20lens

Fiche 14,  Justifications,  Français

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Ce nouveau collimateur fait appel à une forme d'enregistrement holographique qui crée une lentille à couche mince recouvrant toute la surface de l'optique de mélange. (...) Cette lentille à couche mince est créée par un laser qui enregistre photographiquement une sorte de réseau de diffraction dans une couche de gélatine appliquée sur l'optique de mélange, elle-même recouverte d'une seconde couche de verre formant sandwich.  1, fiche 14, Français, - lentille%20%C3%A0%20couche%20mince

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