Optical properties refraction

Among the optical properties refraction, absorption, reflection and scattering of light are the most important. While the first three properties are determined by the average optical properties of the medium, scattering is determined by local fluctuations in optical properties within the medium. 

Next to the mentioned optical properties (refraction, absorption and scattering) also reflection is important it is the part of the light remitted on the surface. 

When a solid body is made to absorb heat, we have seen that its temperature, and its volume, and hence also its specific gravity, are aU altered. At the same time, a great number of the other physical properties of the body are changed for example, its optical properties (refractive index and reflectivity), its electrical and thermal conductivity, etc. AU these properties vary continuously with the temperature, so that we have a continuously changing series of intermediate states of the body between any two temperatures. There is a temperature for every body at which this continuous change of the physical properties ceases, viz. the temperature at which the body changes from the solid to the liquid state. This process... 

Optical properties Refractive index Dispersion Reflection Refraction Absorption Transmission Color... 

LB films are ideally suited to analysis by the SPR technique. They may easily be deposited onto a silver-coated microscope slide, and produce a uniform reproducible dielectric layer with a thickness of roughly 2-3 nm per layer, dejpending on molecular size and orientation. For such films, the linear optical properties (refractive index and absorption coefficient) and the thickness may be obtained straightforwar y as described. 

The ratio of the velocity of propagation of an electromagnetic wave in vacuum to its velocity in the medium. It is a parameter that helps to idenfify chemical compounds and means of their selection for use in compositions having predesigned optical properties. Refractive index has been measured at two temperatures 20 and 25oC unless otherwise indicated. 

Genera] optical properties Refractive index Nonlinear dielectric susceptibility... 

Physical Properties. Physical properties include density, properties connected to their combustion tendency (flammability and oxygen index), optical properties (refractive index and yellow index), and the ability to absorb water. Density p, ie, the mass per unit volume, depends on the nature of atoms present in the chemical structure and the way molecules (chains) pack together. Polyoleflns, composed of C and H only, have densities in the range 0.85-1 organic polymers... 

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