| 词汇 | example_english_refractive-index |
| 释义 | Examples of refractive indexThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Consequently, the refractiveindex is not uniform in that region too. It is of degree 2 + 3s in the square of the refractiveindex if s is the number of different particle species. On all illuminated points of one pattern, the refractiveindex was a near-maximum, while on the other it was a near-minimum. The refractiveindex of each sample was determined immediately by the refractometer, and later converted to density data. These are mica flakes 0.5pm thick, 5-20pm diameter, coated with titanium dioxide to raise their refractiveindex. These results investigate various illustrations given for the refractiveindex, power threshold, and self-focusing lengths as a function of laser intensity and density. Here we restrict ourselves to quantify the strength of the thermal lensing and hence fit a parabola to the refractiveindex profiles. Soft-x-ray inter ferometer for measuring the refractiveindex of materials. However, at the intensity maxima, the self-focusing effect is masked by the saturation effect of the nonlinear refractiveindex. The second acoustic mode, with a phase velocity less than the thermal velocity, is found to be evanescent (refractiveindex purely imaginary). The cell width increased very slowly, and the refractiveindex gradients decreased, but the effects were still observable many days later. Such a refractiveindex profile will tend to focus the pulse, preventing the natural diffraction and keeping the laser pulse confined in the channel. The beam thus creates a refractiveindex profile across its wavefront corresponding to its own intensity profile and focuses of its own. Contours of the refractiveindex distribution corresponding to figure 16(a) and (c). Up to this point, the discussion has been concerned with optics; certain cellular images have been demonstrated, and the correspondingdistributions of refractiveindex deduced. This pulse produces a serious effect of the nonlinear refractiveindex. It is possible to produce a serious effect of the nonlinear refractiveindex. When the modified density is changing with time, the refractiveindex will also change with time. While cells are mostly transparent they are phase objects that differ in shape and refractiveindex. This expression does carry the permittivity and permeability as the square of the refractiveindex. Finally, the usable starting materials are limited by requirements of refractiveindex though other beam modes could be used but with some loss in stability. In this context, the slowness is proportional to the inverse of the velocity (refractiveindex in optics). There was a linear response of the refractiveindex over the concentration range evaluated so that the amount of each sugar could be calculated. The oil also has a higher refractiveindex than water, enhancing the brilliance of the shadows. An identity of refractiveindex with that of their surroundings is probably the reason for their invisibility. The permeability can be derived from using both the refractiveindex and the dielectric constant. Lipids have a refractiveindex of 1.48, but they comprise only approximately 5% of the cell material. The possibility therefore exists that there is an asymmetry between the regions of high and those of low refractiveindex. It may be seen that refractiveindex is not uniquely determined by the density of the solution, although the contours of both are nearly parallel. The refractiveindex of the vessel materials (acrylic) is shown by the solid horizontal line. A particle refractiveindex of 1.475 (clinoptilolite) and water refractiveindex of 1.333 were used. We mixed xenon gas in methane to compensate for the effect of nonlinear refractiveindex. To illustrate the characteristic features of the modes polar diagrams of typical refractiveindex surfaces are desirable. Photorefractive nonlinear mirrors and resonant refractiveindex gratings are addressed as phase conjugating mirrors in addition. The refractiveindex therefore has a distribution of approximately this form, although the extent to which it departs from it in detail is not known. The higher density and refractiveindex of the gas in the carbon dioxide flow makes it possible to resolve the shock much more sharply. Figure 18 shows the dependence of refractiveindex and of density on the concentration of sugar and salt in aqueous solution. In principle, it is possible that a denser, more salty solution may have a lower refractiveindex than a less dense solution containing more sugar. Described by the photo-elastic effect the refractiveindex is also dependent on the thermally induced stress. Both effects lead to a local decrease of plasma frequency, and an increase in the refractiveindex. From the viewpoint of geometrical optics, the light rays bend towards this region, which further increases the refractiveindex and consequently bends the light rays even more. However, in the special case of a parabolic refractiveindex profile, the beam quality of the transmitted beam remains constant within the paraxial description of the propagation. It has been assumed here that the layer in which the deflexions are produced is a thin one, and that the refractiveindex varies only in the horizontal. The former line shows the axis of a maximum of refractiveindex, the latter the axis of a minimum; the point where these cross is therefore a saddle-point. As the refractiveindex is proportional to the slowness of the wave's transmission in the media, the path will be the same function class as the field of slowness. These images show differences in inner segment shape, internal structure, and contrast along the long axis of the cone that we attribute to refractiveindex gradients. The bright lines below each interface indicate sharp changes in the refractiveindex of the fluid due to step-changes in the solute concentration of the fluid between the cells. The stratification is measured by withdrawing, at three different heights (respectively 90, 228 and 430 mm from the bottom) small samples of fluid and measuring the refractiveindex. The latter two reinforce each other to expel the plasma, resulting in increased refractiveindex, which leads to further concentration of intensity in the regions of hotspots. It should be noted that the refractiveindex is the complex refractiveindex; a function of the plasma frequency, collision frequency, and the incident radiation frequency. In classical terms, the refractiveindex associated with vacuum fluctuations is intensity-dependent, just as it happens in non-linear interactions of the strong electromagnetic field with real matter. At the contact areas, light is diffusely reflected out of the reverse surface of the plate because the rubber has a higher refractiveindex than the plate. It was filled with castor oil so that the refractiveindex along optical paths between the (flat) airlcontainer and castor oil/silicone surfaces was nearly constant. The investigation of self-focusing processes of laser beams in plasma results from the relativistic mass and energy dependency of the refractiveindex at high laser intensities. It is often hard to distinguish solid from liquid helium since the refractiveindex of the two phases are nearly the same. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The effective refractiveindex quantifies the velocity of propagating light as compared to its velocity in vacuum. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is apodization of the refractiveindex change. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus, spatial and temporal variations in pressure (e.g., due to ultrasound radiation) induces corresponding variations in refractiveindex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The p-polarized wave, on the other hand, is refracted because the effective refractiveindex changes upon changing from o-ray to e-ray. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The gap between tissue layers naturally formed a bioconvex shape, an optimally ideal structure for a normal refractiveindex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It also became apparent that it had interesting magnetic properties as well as a refractiveindex nearly as high as that of diamonds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Because fiber optic materials are already highly optimized for low scattering and high transparency alternative ways to change the refractiveindex were investigated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The refractiveindex of a vacuum is therefore 1, by definition. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A refractiveindex (n) measures the speed of light in a substanceor in the case of mineralogyin a mineral. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In either case the penetration depth is found directly from the imaginary part of the material's refractiveindex as is detailed above. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a heavy low-viscosity liquid with refractiveindex 1.4808. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These layers have a lower refractiveindex than the centre layers, and hence confine the light effectively. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Silicon also has a very high refractiveindex, of about 3.5. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The refractiveindex of a polymer is based on several factors which include polarizability, chain flexibility, molecular geometry and the polymer backbone orientation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The change from a pure enantiomer to a racemate can change its density, melting point, solubility, heat of fusion, refractiveindex, and its various spectra. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A high clarity (optical transparency) is also desired in a high refractiveindex polymer. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a new technique for circuit manufacturing that uses both photoresists and high refractiveindex fluids. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As of 2004, the highest refractiveindex for a polymer was 1.76. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Their investigations showed that not only the chemical stability can be influenced by thermal treatment but also density, refractiveindex, thermal expansion and viscosity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This allows smaller, lower refractiveindex particles to be analyzed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each layer is characterized by its (constant) refractiveindex and thickness. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The refractiveindex will determine how much light is scattered and absorbed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The changing refractiveindex causes light to change speed throughout the material and produce light and dark regions in the crystal. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These detectors directly measure the molecular mass of the polymer and are most often used in conjunction with differental refractiveindex detectors. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This can occur only when one of the two materials has a "negative" refractiveindex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Generally speaking, the more different the refractiveindex between the particles and the glaze matrix, the larger the opacity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These factors the high refractiveindex, the low solubility in glazes and the particle size make tin oxide an excellent opacifier. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In 2001, a team of researchers constructed a prism composed of metamaterials (negative index metamaterials) to experimentally test for negative refractiveindex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The blurriness is reduced by a factor equal to the refractiveindex of the medium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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