Refractive properties

B. Spore coat does not lose all its refractive property previous to germination. 

If two or more different cuvettes are used in an analysis, one should be sure that they are matched. Matched cuvettes are identical with respect to pathlength and reflective and refractive properties in the... 

Cuvettes are matched if they are identical in terms of pathlength and reflective-refractive properties. Cuvettes used for calibration and the analysis of samples after calibration must be matched so that absorption readings are due solely to concentration effects and not cuvette differences. 

Things that may be different include pathlength and the reflective-refractive properties at the interior and exterior interfaces. 

Potential energy surfaces of weakly bound dimers and trimers are the key quantities needed to compute transition frequencies in the high resolution spectra, (differential and integral) scattering cross sections or rate coefficients describing collisional processes between the molecules, or some thermodynamic properties needed to derive equations of state for condensed phases. However, some other quantities governed by weak intermolecular forces are needed to describe intensities in the spectra or, more generally, infrared and Raman spectra of unbound (collisional complexes) of two molecules, and dielectric and refractive properties of condensed phases. These are the interaction-induced (or collision-induced) dipole moments and polarizabilities. 

Similarly as the trace, the anisotropy of the polarizability tensor of diatomic colli-sional systems can also be related to some macroscopic properties, namely to the refractive properties of atomic gases. The so-called Kerr constant, the anisotropy of the refractive index in the parallel and perpendicular directions to the external static electric field is given by,... 

Modelling of Dielectric and Refractive Properties of Atomic Gases... 

The low temperature refractive properties of the He gas have not been studied extensively. However, the second virial Kerr coefficient can be related to the zeroth moment of the polarized Raman spectrum, and thus deduced from the Raman experiment. For the helium gas at the liquid nitrogen temperature the experiment gives 1.46 a.u.416, the full quantum calculation 1.45328, while the classical result computed according to Eq. (1-260) gives 1.63 328. This shows that also for the Kerr effect the quantum corrections are important. A systematic study of these corrections and of the convergence of the semiclassical expansion has not been reported thus far, even though all necessary expressions are derived328. 

Mirage effect — The deflection of a probe light beam based on the refraction property. When a light beam... 

Tantalum is resistant to corrosion because a thin film of tantalum oxide forms when tantalum is exposed to oxygen. The metal oxide acts as a protective layer. The oxide also has special refractive properties that make it ideal for use in camera lenses. 

Section III deals with various theoretical considerations, including the basic refractive properties of organic materials, and theoretical limits on the achievable refractive-index changes. We also propose a scheme for classifying refractive-index image recording systems. 

For the light microscope, light can be focused and bent using the refractive properties of glass lenses. To... 

Unlike light, which, because of its refractive properties, can be focused by a properly ground glass lens, and unlike electrons, which, because of their charge, can be focused by... 

A is the Hamaker constant for material (1) in medium (3) and H the separation distance between the particles H = R-2a, with R the centre to centre distance). The Hamaker constant depends on the dielectric and refractive properties of the particle material (1) and the dispersant medium (3) and is given by Ref. [26]... 

Cornea Disease, trauma Epithelial e-PTEE, PMMA, PVA Repair, replacement Elasticity, refractive properties, transparency, curvature [14]... 

The nonlinear optical properties in solution of selected functionalized PDAs, described herein, have also been evaluated by means of the z-scan technique. Off resonance studies (at 705 nm) show that nonlinear refraction is only comparable to that of the solvent for these dilute solutions, but that nonlinear absorption, characterized by p values, varies significantly, with the nature of the side-chains. O It can be inferred that if bulk films of these PDAs possess suitable nonresonant nonlinear refractive properties for optical devices, modification of side-chain structure can reduce the magnitude of undesirable two photon absorption. 

A number of apparatus components made of pure carbon, pure graphite or ceramic bonded carbon are commercially available. The additives, however, cause some reduction in refractive properties as compared to pure carbon. 

A frequent trouble encountered in spectrophotometric readouts is the generation of spurious peaks due to differences in refractive properties of the sample and car-rier/reagent. In case of a substantial difference in the refiractive index, the parabolic interfaces at the two ends of the sample zone create convex and concave lens effects on... 

Preparation and Properties of Serum and Plasma Proteins. XII. The Refractive Properties of the Proteins of Human Plasma and Certain Purified Fractions. J. Amer. chem. Soc. 69, 1747—1753 (1947). 

Index of refraction Property of transparent materials related to their polarizability at optical frequencies. The... 

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