Rayleigh ratio polarized

The observed ratio of detector intensities has to be corrected by a few factors in order to obtain the two Rayleigh ratios [10,15-18,41,42], Typical phenomena that must be corrected for are [10,41] (1) scattering volume, (2) refraction correction, (3) reflection correction, (4) absorption, (5) fluorescence, (6) polarization, and (7) sensitivity of photomultiplier. 

The rj are related to the integrated scattered intensity. For vertically polarized scattering with vertically polarized incident light rj is determined by the Rayleigh ratio Rw,i component i at concentration Cj, divided by the total Rayleigh ratio ... 

For the convenience of discussion, both macromolecules and colloidal particles are referred to as particles hereafter. When a light beam Zinc hits a solution, the excess Rayleigh ratio Ryyiq) of the solute particles for the vertically polarized incident and scattering lights has the form... 

When the incident beam is not polarized and if the scattered wave is simply the superposition of two vibrations moving along Ox and Oz axes, the Rayleigh ratio is defined as follows ... 

Currently, lasers are used as source of radiation. These lasers are normally vertically polarized and the scattered intensity is detected in the plane perpendicular to the polarization direction. Under these conditions the Rayleigh ratio is equal to... 

The intensity of the wave scattered by such a particle is actually the average intensity of all scattered polarizations, taking into account the polarizability tensor of the particle. By splitting up the Rayleigh ratio into contributions of the vertically (V) and horizontally (H) polarized scattered light, one obtains... 

Draw a plot in polar coordinates of the scattering envelope in the xy plane. How would the envelope of a Rayleigh scatterer compare with this plot By interpolation, evaluate 145, iiss, and z. Use Fig. 10.13 to estimate the value of rrms to which this dissymmetry ratio corresponds if X (in toluene) is 364 nm. What are some practical and theoretical objections to this procedure for estimating rrms ... 

Droplet temperature is of interest in practical spray processes since it influences the associated heat and mass transfer, chemical reactions, and phase changes such as evaporation or solidification. Various forms of Rayleigh, Raman and fluorescence spectroscopies have been developed for measurements of droplet temperature and species concentration in sprays.16471 Rainbow refractometry (thermometry), polarization ratioing thermometry, and exciplex method are some examples of the droplet temperature measurement techniques. 

Some insight into how departures from Rayleigh theory affect linear polarization can be obtained from calculations of Asano and Sato (1980) for randomly oriented oblate spheroids with refractive index 1.33, which is near enough to that of ice, axial ratio a/c = 5, and size parameter 2ma/ = 5 for a... 

Block the laser beam or spectrometer entrance slit and adjust the spectrometer to an anti-Stokes shift of 1000 cm Caution Exposure of the sensitive phototube to the intense Rayleigh scattering line can seriously damage the detector. Scan the anti-Stokes spectrum from 1000 to 150 cm in the parallel polarization configuration and, using appropriate sensitivity expansion, j measure the ratio of anti-Stokes to Stokes peak heights for each band. 

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