Depolarization factor

Po = depolarization of the emission due only to intrinsic causes, without any other depolarizing factors. 

Using the same method that led to Eq. (5.27), it is easy to establish the rule of multiplication of depolarization factors when several processes inducing successive rotations of the transition moments (each being characterized by cos2 C,) are independent random relative azimuths, the emission anisotropy is the product of the depolarization factors (3 cos2 c, — l)/2 ... 

The geometrical factors Lj are related to the depolarization factors L defined by... 

Only when the particle is in free space (em = e0) are its depolarization factors independent of composition in this instance = Lj/e0. The induced field in an ellipsoidal particle is uniform but not necessarily parallel to an arbitrary applied field except in the special case of a sphere. 

A further depolarizing factor is introduced in concentrated solutions of given viscosity ). The empirical relationship found by Sveshnikov and Feofilov is... 

The molecular symmetry of octahydropyridazino[ 1,2-a ]pyridazine (24) has been analyzed using band numbers, frequency coincidences and Raman depolarization factors in the IR and Raman spectra. A centrosymmetric trans conformation was confirmed for this compound (76SA(A)157). IR spectral data also indicate that the carbonyl absorption for pyridazino[l,2-a]pyridazine-l,4-diones (26) occurs at ca. 1625 cm-1 (72TL1885). 

Comparing the signal amplitudes of the data in Fig. 6a and b, the peak level of the nonresonant scattering is fully consistent with the prediction of Equation (8). The ratio of coupling constants of the resonant scattering is determined to y2/a2 = 0.8 0.2 equivalent to the depolarization factor p = 3j/2/(45a2 + 4y2) = 0.05 0.01. The number nicely agrees with the... 

Polarizers may be employed to measure the scattering tensor of crystals or the depolarization factor of liquids (Hoffmann et al., 1991). 

A similar coupling may be observed for a, /J-unsaturated aldehydes and ketones. Table 4.1-3 shows that the s-cis or s-trans conformation of the C=C-C=0 systems is indicated by the difference of the frequencies of the C=0 and the C=C stretching vibration as well as by its relative intensity in the infrared and the Raman spectrum and the depolarization factor in the Raman spectrum (Oelichmann et al., 1982). 

If we now proceed to consider those mono- and di-substituted benzene derivatives in which as a good approximation we may assume the existence of rotational symmetry, as is shown by the values of the depolarization factor of scattered light differing only slightly from the values for benzene, we have the following state of affairs. 

I. imensio If. very weak f, weak m, medium F. strong e. shoulder, p depolarization factor. 

R. H. Huiser, A. C. Michels, H. M. J, Boots, and N. J. Trappeniers. The Depolarization Factor of Light Scattered from Xenon near Its Critical Point. In B. Vodar and Ph. Marteau (ed.,) High Pressure Science and Technology, Pergamon, New York, 1980, pp. 727-729. 

A second equation, sometimes available, is (23), where A is the depolarization factor of light scattered transversely by the substance under examination ... 

Dielecrric constant 6-t obtained from Eq. /5a/ versus assumed depolarization factor n... 

In this equation, Cdet can be considered a proportionality constant and fi describes the degree of ellipticity of the probe laser. The probe light of arbitrary polarization is described by a vector (cos / , eli sin /l, 0). Linearly polarized light is described when / = 0 and circularly polarized light is described when <5 = njl and fi - n/A. The depolarization factors, h(i), depend on which branch is being used in the probe step. 

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