Light scattering phase function

The angular redistribution of light during a scattering event is described by the scattering phase function, P(0). This gives the probability that a photon from... 

Fig. 9 shows the scattering phase function at 632.8 nm measured experimentally for various species previously mentioned. It indicates that all these microorganisms scatter light strongly in the forward direction. In fact, in aU... 

Scattering phase function Describes the fraction of light energy incident on a scattering particle that gets scattered. 

The propagation of light in multiple scattering media is quantified usually on the level of radiative transfer or particle diffusion. Scattering, absorption, and emission are considered as independent statistical processes, and the consequences of wave character are either ignored, like polarization, or added as an additional parameter, like the phase function P(ji n) that describes the angular distribution of scattered... 

Note that the number of diffraction peaks decreases with time as the droplet diameter decreases, and the number density of peaks is very nearly proportional to the droplet size. The intensity of the scattered light also decreases with size. The resolution of the photodiode array is not adequate to resolve the fine structure that is seen in Fig. 21, but comparison of the phase functions shown in Fig. 22 with Mie theory indicates that the size can be determined to within 1% without taking into account the fine structure. In this case, however, the results are not very sensitive to refractive index. Some information is lost as the price of rapid data acquisition. 

Process in which a precipitant is added incrementally to a highly dilute polymer solution and the intensity of light scattered by, or the turbidity due to, the finely dispersed particles of the polymer-rich phase is measured as a function of the amount of precipitant added. 

Measurement of the intensity of the transmitted light as a function of the concentration of the dispersed phase is the basis of turbidimetric analysis and measurement of the intensity of the scattered light (at right angles to the direction of incident light) as a function of the concentration of dispersed phase constitute the basis of nephelometric analysis. 

The phase function p(0,4>) = S(0, < >) 2/4x2R, which is the fraction of the total scattered light that is scattered into a unit solid angle about a given... 

Equation (8.43) provides us with an approximate criterion, subject to the limitations of diffraction theory, for when a finite cylinder may be regarded as effectively infinite if R > 10, say, there will be comparatively little light scattered in directions other than those in a plane perpendicular to the cylinder axis. The greater is R, the more the scattered light is concentrated in this plane in the limit of indefinitely large R, no light is scattered in directions other than in this plane. We may show this as follows. The phase function may be written in the form p(0, ) = G(0, )F(0, ), where... 

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