TERMIUM Plus^®

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Second, there is liquid-surface holography, in which, usually, the liquid surface, disturbed by both the scattered and the reference acoustic field, is used to reflect light which is made to produce the final image; the hologram itself is at the surface.  2, record 1, English, - liquid%2Dsurface%20holography

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An atomic gas laser in which a combination of helium and neon gases is used.  6, record 2, English, - helium%2Dneon%20laser

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Helium neon lasers are used widely in commercial and industrial applications. They are used in barcode scanners, holography, non-contact measuring and monitoring, tool alignment, parts detection, blood analysis and alignment of high power CO₂ and YAG [yttrium-aluminum-garnet] treatment lasers and pointing beams.  4, record 2, English, - helium%2Dneon%20laser

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Le laser He-Ne est formé de son tube à décharge et de deux miroirs, formant la cavité, placés sur un banc optique.  1, record 2, French, - laser%20He%2DNe

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Le laser à hélium-néon. - Le milieu actif est [...] constitué par des atomes de néon au sein d'un mélange gazeux d'hélium (85 % environ) et de néon (15 %). [...] les chocs des électrons sur les atomes d'hélium portent une fraction appréciable de ceux-ci dans [...] deux états métastables [...] Il y a par suite une forte probabilité de transfert d'excitation par collisions entre les atomes d'hélium et de néon, conduisant à [...] l'inversion de populations nécessaires au fonctionnement laser.  5, record 2, French, - laser%20He%2DNe

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Para valorar el efecto del láser de helio-neón (He-Ne) sobre la regeneración del nervio ciático, seccionado y suturado, se utilizaron un total de 72 ratas Wistar, que se dividieron en 3 grupos, los cuales fueron irradiados con He-Ne, luz de xenón y luz solar respectivamente.  2, record 2, Spanish, - l%C3%A1ser%20de%20helio%2Dne%C3%B3n

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[The authors] have studied the use of image plane holograms in holographic microscopy. [Their] goal is to reduce the amount of speckle by reducing the degree of spatial coherence needed to reconstruct the image, while retaining the resolution needed to study microscopic objects.  1, record 3, English, - holographic%20microscopy

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[Microholography] covers fiberoptic HOEs [holographic optical elements] and planar holography.  2, record 3, English, - holographic%20microscopy

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Type d'holographie qui utilise le microscope.  3, record 3, French, - microholographie

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Some of the earliest work in medical holography was in the area of dental records …  2, record 4, English, - medical%20holography

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A holographic three-dimensional(3D) display is a recognized and ideal 3D display technology. In the field of holographic research, cylindrical holography with the merit of 360° field of view(FOV) has recently become a hot issue, as it naturally solves the problem of limited FOV in planar holography.  2, record 5, English, - planar%20holography

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... method to obtain phase information about the object vibration is phase-modulation holography.  1, record 6, English, - phase%2Dmodulation%20holography

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[Polarization gratings(PG) ] can be realized using various technologies. The primary means for creating PGs is using polarizing holography with anisotropic organic recording materials(e. g. reactive mesogens and azobenzene containing polymers).  2, record 7, English, - polarizing%20holography

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Polarization holography(also known as vectorial holography) [records] not only the intensity and phase but also the polarization state of light. In this way, it fulfills the ultimate goal of holography, namely to register all the characteristics of the light wave.  2, record 8, English, - polarization%20holography

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[Researchers describe] the evolution of holographic vibration analysis from its discovery in 1964 to its present form as a technique of digital holography.  2, record 9, English, - holographic%20vibration%20analysis

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Two-beam holography is used to fabricate large-area line-gratings in one step, whereas electron beam(e-beam) lithography is a more complicated technique that can define "any-shape" gratings, although the fabrication time can be very long...  1, record 10, English, - two%2Dbeam%20holography

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Ce procédé s'inspire du principe de l'holographie à deux faisceaux, où deux faisceaux venant d'une même source cohérente sont séparés et déphasés pour qu'ils interfèrent entre eux lorsqu'ils se recombinent.  2, record 10, French, - holographie%20%C3%A0%20deux%20faisceaux

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The diffraction characteristics produced by three-beam holography depend strongly on the incident polarization of the probe beam. These diffraction characteristics have been explained by diffraction theory taking into account the anisotropic refractive index changes resulting from the molecular reorientation.  2, record 11, English, - three%2Dbeam%20holography

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Spectroscopic holography refers to techniques in which the detected hologram contains information about specific species in the medium under study. In general, at least two lasers are required with wavelengths chosen carefully to fit the interaction process utilized.  2, record 12, English, - spectroscopic%20holography

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... image-plane holography projects the extended object near the sensor area and produces a reduction of the size of the image.  2, record 13, English, - image%2Dplane%20holography

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Cone beam holography allows [researchers] to record magnified holograms compared to parallel beam holography. The magnification depends on the relative positions between focus and sample and between sample and detector.  2, record 14, English, - parallel%2Dbeam%20holography

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Seismic phase correlation maps of far solar surface computed by seismic holography and averaged over several days show a strong correlation with nearside magnetic maps of the same region two weeks before or after, when it can be viewed directly from the near solar surface.  1, record 15, English, - seismic%20holography

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Incoherent digital holography refers to a group of methods, in which a 3D [three-dimensional] scene, illuminated by incoherent light, is recorded onto a two-dimensional digital hologram. Since the hologram is stored digitally in the computer, the image of the scene is usually reconstructed from the hologram by a digital computation.  1, record 16, English, - incoherent%20digital%20holography

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There are two types of representative IDH [incoherent digital holography] techniques : IDH with a structured illumination and a single photodetector termed optical scanning holography and self-interference IDH. The latter IDH is a technique to obtain an incoherent digital hologram by modulating an incoherent light wave between an object and an image sensor.  1, record 17, English, - incoherent%20digital%20hologram

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… coherent digital holography has limitations for many practical 3D [three-dimensional] applications because it cannot take 3D-scene holograms under daylight or incoherent illumination, such as that produced by light-emitting-diodes(LEDs).  1, record 18, English, - coherent%20digital%20holography

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This demonstrates the main advantages of compressive holography, i. e. that holograms naturally encode high quality multiplex data and that decompressive inference can infer multidimensional objects from lower dimensional data. Extensions of compressive holography may use off-axis encoding to filter nonlinear terms and multispectral illumination to increase the band volume and improve axial resolution.  2, record 19, English, - compressive%20holography

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Conoscopic holography was a method suggested to obtain the incoherent hologram without spatially dividing the incident object wavefront into two by utilizing the birefringent crystal slap.  2, record 20, English, - incoherent%20hologram

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Fraunhofer(or far-field) holography is the recording of the interference between an object's far field diffraction pattern and the coherent quasimonochromatic background illumination …  3, record 21, English, - far%2Dfield%20holography

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Compared to reference-beam holography, which requires a free area beside the sample for an undisturbed reference wave, inline holography can easily be applied to extended samples without the restriction of a free area …  2, record 22, English, - reference%2Dbeam%20holography

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Real-time holography has tremendous potential for education, training, and remote work. An aircraft mechanic, for example, could learn by exploring the inside of a jet engine thousands of miles away, or a cardiac surgeon could practice a particularly challenging procedure.  2, record 23, English, - real%2Dtime%20holography

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… the enormous amount of calculation in the generation of a complex hologram from a 3D [three-dimensional] object model consisting of many points is a huge challenge and the fast CGH [computer-generated holography] calculation problem has been investigated from different perspectives. Another major concern is that holographic display devices such as spatial light modulators(SLM) usually cannot display both the amplitude and phase part of a complex hologram simultaneously.  2, record 24, English, - complex%20hologram

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Sampling and quantization problems in digital holography have been discussed … It is noted that the sample spacing used in holographic data processing is usually selected to be a half wavelength since it can achieve the Nyquist rate.  1, record 25, English, - holographic%20data%20processing

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In particle field holography, the diffraction by the object cross‑section acts as the object beam. The boundary or the object cross‑section acts as the plane object.  2, record 26, English, - particle%20field%20holography

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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, record 27, English, - optical%20volume%20holography

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In the era of monochromatic holography, the use of a ruby pulse laser to eliminate the enduring problems of movement … was a legitimate proposal for mass production of reflection holograms.  1, record 28, English, - monochromatic%20holography

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Dynamic holography using spatial light modulators is a very flexible technique that offers various new applications compared to static holography.  2, record 29, English, - dynamic%20holography

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Du fait de sa rapidité, mais aussi des durées de vie des réseaux photoinduits et de leur sélectivité, l'holographie dynamique est un outil très puissant pour le traitement de l'information.  2, record 29, French, - holographie%20dynamique

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There are many materials that may be used to fabricate holograms. DCG [dichromated gelatin] and photopolymers … are typically used in solar holography because these materials can have high efficiency in thin layers.  2, record 30, English, - solar%20holography

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Different holographic techniques such as time-averaged holography, real-time holography, stroboscopic holography etc. can be employed to study … vibration phenomena.  2, record 31, English, - stroboscopic%20holography

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… incoherent holography records the intensity distribution of the object, allowing a higher signal-to-noise ratio as compared to its coherent counterpart.  2, record 32, English, - incoherent%20holography

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A hologram made with electron waves rather than visible light.  2, record 33, English, - electron%20hologram

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An optical reconstruction method is the direct implementation of Gabor's original holography idea in which the wavefronts of electron waves are replaced by those of light waves … The electron holograms are regarded as diffraction gratings, and laser lights are irradiated on them as reconstruction waves.  3, record 33, English, - electron%20hologram

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Optical holography is based on interference phenomena obtained on a holographic plate due to the superposition of two waves, namely the reflected wave from the object which contains details about the object, and the reference wave.  2, record 34, English, - optical%20holography

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[…] l'holographie en ligne de microparticules a été l'une des premières applications métrologiques de l'holographie optique, car les objets (microparticules) créent des hologrammes interprétables a l'œil nu.  2, record 34, French, - holographie%20optique

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Underwater holography is attracting attention … as a potential technique for high-resolution inspection and measurement of subsea structures and components.  1, record 35, English, - underwater%20holography

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… in cylindrical holography, the vertical property is the same as that of the planar hologram : neither the vertical viewing zone nor vertical reconstructible size is improved …  2, record 36, English, - cylindrical%20holography

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A number of methods for self-reference holography in white light have been proposed, and they can be conditionally divided into two groups. One is a group that uses a self-illuminating object or an object illuminated by an incoherent light source, considered to be a set of point sources that are not correlated with each other.  2, record 37, English, - self%2Dreference%20holography

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The basic idea of evanescent wave holography is to use an evanescent wave as a reference wave and as a readout wave.  2, record 38, English, - evanescent%2Dwave%20holography

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The recording of sound waves in a two-dimensional pattern (the hologram) and the use of the hologram to reconstruct the entire sound field throughout a three-dimensional region of space.  3, record 39, English, - acoustic%20holography

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Acoustical holography involves reconstruction of the sound field that arises due to radiation of sound at a boundary, such as the vibrating body of a violin, the fuselage of an aircraft, or the surface of a submarine.  3, record 39, English, - acoustic%20holography

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… electronic devices are only able to create thin holograms and their resolution is still limited compared to materials that can reproduce the more efficient and versatile volume holograms with a much higher resolution. Although the technology is essentially the same in both the imaging and holographic field, there exists some specific technical requirement for holography.  2, record 40, English, - holographic%20field

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Coherent holography records the complex amplitude of a 3D object holographically, giving speckle noise upon reconstruction and presenting a serious drawback inherent in coherent optical systems.  2, record 41, English, - coherent%20holography

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Conoscopic holography is an incoherent holographic technique based on the properties of crystal optics. More precisely, for each point of the object, the interference pattern between the ordinary and the extraordinary rays is presented.  2, record 42, English, - conoscopic%20holography

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By combining digital holography with optical coherence tomography... in a process known as holoscopy, 3D parallel image acquisition with extremely high data throughput at high imaging speeds is possible due to the lack of moving elements.  2, record 43, English, - holoscopy

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Holographic Versatile Disc(HVD) is an advanced optical disc technology still in the research stage which would greatly increase storage over Blu-ray and HD-DVD [high-definition digital versatile disc] optical disc systems. It employs a technique known as collinear holography, whereby two lasers, one red and one blue-green, are collimated in a single beam. These disks have the capacity to hold up to 3. 9 terabytes(TB) of information, which is approximately eighty times the capacity of Blu-ray Disc.  2, record 44, English, - holographic%20versatile%20disc

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[...] le HVD (holographic versatile disc, disque holographique polyvalent) n'a en fait rien à voir avec ses prédécesseurs optiques que sont CD, DVD et Disque Blu-ray.Contrairement à ces derniers, qui sont une succession de creux lus par un laser, le HVD est en fait un hologramme de 12 centimètres avec une capacité de 3,9 téraoctets (capacité nominale du double). Le HVD est cependant toujours lu par un laser. Il s'agit d'un laser vert, ce qui permet d'envisager un hypothétique «HVD-bluray» balayé par un laser bleu et d'une capacité encore plus grande.  1, record 44, French, - disque%20holographique%20polyvalent

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Holography is attractive because, in the next few years, traditional two-dimensional storage in hard drives and DVDs is likely to reach its data density limit.  3, record 45, English, - two%2Ddimensional%20storage

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Término relacionado con aquellos dispositivos de acceso directo en los que el área asignada a un archivo (fichero) determinado no necesita estar constituida por una serie de posiciones que estén físicamente continuas, sino que, por el contrario, se especificará en forma de un número de celdas extraídas de una o más áreas.  2, record 45, Spanish, - memoria%20con%20dos%20dimensiones

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The acoustic equivalent of holography, which reproduces a sound field in space from a surface recording.  3, record 46, English, - holophony

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Restitution d'un champ sonore dans un domaine spatiotemporel étendu.  1, record 46, French, - holophonie

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In holography, the wave of light that illuminates the object to be recorded, which diffracts it to the recording medium, where it interferes with the reference beam, generating the hologram.  2, record 47, English, - object%20beam

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Faisceau qui éclaire l'objet durant l'enregistrement afin qu'il réfléchisse partiellement la lumière laser en direction du film (ou de la plaque) en fonction de sa configuration tridimensionnelle.  2, record 47, French, - faisceau%20objet

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Les ondes de ce faisceau ne sont alors plus parallèles et, en se combinant à la surface de l'émulsion avec les ondes du faisceau de référence, elles forment des franges d'interférence constituant l'image latente de l'hologramme.  2, record 47, French, - faisceau%20objet

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A method of producing pictures that give the viewer an impression of a three-dimensional image.  2, record 48, English, - stereoscopic%20photography

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Compare with holography.  3, record 48, English, - stereoscopic%20photography

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Méthode de photographie produisant des images donnant au spectateur l'impression qu'elles sont tridimensionnelles.  2, record 48, French, - photographie%20st%C3%A9r%C3%A9oscopique

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Comparer avec holographie.  3, record 48, French, - photographie%20st%C3%A9r%C3%A9oscopique

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Método de fotografía que permite obtener con una cámara estereoscópica imágenes que al ser observadas ofrecen una sensación de relieve.  2, record 48, Spanish, - fotograf%C3%ADa%20estereosc%C3%B3pica

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Three-dimensional X-ray holography.  2, record 49, English, - X%2Dray%20holography

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Holographie X à l'échelle atomique [...]  1, record 49, French, - holographie%20X

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Interferencia entre los haces de rayos X incidentes y dispersados. La interferencia graba un holograma en una lámina de resina. La imagen se reconstruye iluminando el holograma con luz de láser digitalizando el holograma y tratándolo matemáticamente.  1, record 49, Spanish, - holograf%C3%ADa%20de%20rayos%20X

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Holografía tridimensional con rayos X.  2, record 49, Spanish, - holograf%C3%ADa%20de%20rayos%20X

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Another new class of testing tool allows engineers to observe patterns of stress and strain on a spinning disc. Pulsed-laser holography, one of these new methods, uses rapid sequences of holographic "snapshots" to create holograms which can show minute surface distortions caused by vibration. An optical "derotator", consisting of a prism rotating at half the speed of the specimen, freezes the movement of the disc so that the image can be processed.  2, record 50, English, - derotator

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Appareil qui comporte un dispositif optique (un prisme) doté d'un système anti-vibratoire, monté sur un moteur synchronisé à la moitié de la vitesse de rotation de l'objet observé permettant ainsi d'en figer le mouvement pendant la rotation.  2, record 50, French, - d%C3%A9rotateur

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Bit storage by two-photon excitation is one of the two main contenders for the job of storing data in three dimensions. The other, also optical, is holography.  1, record 51, English, - bit%20storage

Record number: 51, Textual support number: 2 CONT

At the moment, bit storage is slow and accurate, while holography is fast but fuzzy.  1, record 51, English, - bit%20storage

Record 51,  Textual support,  French

Record number: 51, Textual support number: 1 OBS

Voir «mémoire mappée par points».  1, record 51, French, - stockage%20en%20mode%20point

Record 51,  Textual support,  Spanish

Record 52,  Textual support,  English

Record number: 52, Textual support number: 1 DEF

A phenomenon appearing on every image created by coherent sources such as radar, sonar or holography.  1, record 52, English, - speckle%20noise

Record 52,  Textual support,  French

Record 52,  Textual support,  Spanish

Record 53,  Textual support,  English

Record number: 53, Textual support number: 1 DEF

Holography used for the three dimensional imaging of nearby objects in optically opaque dielectric regions.  1, record 53, English, - mutifrequency%20microwave%20holography

Record 53,  Textual support,  French

Record 53,  Textual support,  Spanish

Record 54,  Textual support,  English

Record number: 54, Textual support number: 1 DEF

Holography which enables the real and virtual images of the hologram, as well as the straight-through or undiffracted light to be separated since the various waves travel in different directions.  1, record 54, English, - off%2Daxis%20holography

Record 54,  Textual support,  French

Record 54,  Textual support,  Spanish

Record 55,  Textual support,  English

Record number: 55, Textual support number: 1 CONT

If the two interfering beams arrive at the recording medium from substantially different directions, the recording is a Leith-Upatnieks or off-axis hologram.  1, record 55, English, - off%2Daxis%20hologram

Record number: 55, Textual support number: 1 OBS

... off-axis holography enables the real and virtual images of the hologram, as well as the straight-through or undiffracted light, to be separated since the various waves travel in different directions....  2, record 55, English, - off%2Daxis%20hologram

Record 55,  Textual support,  French

Record 55,  Textual support,  Spanish

Record 56,  Textual support,  English

Record number: 56, Textual support number: 1 CONT

In contrast to optical holography, the nature of computer holography permits the realization of any desired phase distribution.  2, record 56, English, - computer%20holography

Record 56,  Textual support,  French

Record 56,  Textual support,  Spanish

Record 57,  Textual support,  English

Record number: 57, Textual support number: 1 DEF

A method of increasing the ability of an imaging system such as radar or acoustical holography to resolve small details of an object, in which a receiver of large size(aperture) is in effect synthesized by the motion of a small receiver and the proper correlation of the detected signals.  2, record 57, English, - synthetic%20aperture

Record 57,  Textual support,  French

Record 57,  Textual support,  Spanish

Record 58,  Textual support,  English

Record number: 58, Textual support number: 1 OBS

Holography whose theory makes use of the Fourier transformation.  1, record 58, English, - Fourier%20holography

Record 58,  Textual support,  French

Record 58,  Textual support,  Spanish

Record 59,  Textual support,  English

Record number: 59, Textual support number: 1 OBS

Mirror used for holography and lasers.  2, record 59, English, - reference%20mirror

Record 59,  Textual support,  French

Record 59,  Textual support,  Spanish