Field index

Thus, four center integrals may be obtained as simple matrix multiplications of the three-index fields. This allows one to combine RI with most approximations without needing major modifications to existing algorithms and codes. 

Radiant signal degradation by passage through variable refractive index fields. 

FIGURE 5 Interaction of a light ray with the refractive index field cf a fluid flew (test cbject). The information on light deflection and optical phase changes is recorded in a plane at distance / behind the flew field. [From Merzkirch, W. (1987). Flow Visualization, 2nd ed., Academic Press, San Diego.]... 

Registry Numbers may be taken over from the Registry File (Sect. 7.3.1) or searched directly. As Registry Numbers are documented in the Basic Index, field qualifiers are not demanded for them. 

Harvest index Field progeny test, BC 0.34 Wu etal, 2000... 

Ohno (2002a) investigated concentration and inner filter effects on the humification index. Field com residue extract, water-extractable soil organic matter, and soil fulvic acid... 

Up to this point, we have calculated the linear response of the medium, a polarization oscillating at the frequency m of the applied field. This polarization produces its own radiation field that interferes with the applied optical field. Two familiar effects result a change in tlie speed of the light wave and its attenuation as it propagates. These properties may be related directly to the linear susceptibility The index of... 

Gmelin contains over 800 different chemical and physical property fields, and a detailed index of the original literature. Broad categories of data found in the database include ... 

Equations (10.17) and (10.18) show that both the relative dielectric constant and the refractive index of a substance are measurable properties of matter that quantify the interaction between matter and electric fields of whatever origin. The polarizability is the molecular parameter which is pertinent to this interaction. We shall see in the next section that a also plays an important role in the theory of light scattering. The following example illustrates the use of Eq. (10.17) to evaluate a and considers one aspect of the applicability of this quantity to light scattering. 

Attenuated total reflection, on which atr—ftir is based, occurs when the rarer medium is absorbing and is characterized by a complex refractive index (40). The absorbing characteristics of this medium allow coupling to the evanescent field such that this field is attenuated to an extent dependent on k. The critical angle in the case of attenuated total reflection loses its meaning, but internal reflection still occurs. Thus, if the internally reflected beam is monitored, its intensity will reflect the loss associated with the internal reflection process at the interface with an absorbing medium. 

Fig. 24. Attenuated total reflectance of thin film of thickness d and refractive index on a substrate of refractive index at the surface of internal reflection element (IRE) of refractive index Decay of evanescent field beyond thickness of thin film indicated.

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