Transmission dynamic scattering

From the optical standpoint the outstanding properties of dynamic scattering are that it can be electrically controlled in two dimensions and the active motion of the scattering centers. By utilizing the property that dynamic scattering can be electrically controlled, it is possible to build electrooptic devices with transmission characteristics that can be controlled in two dimensions and as a function of time. Such devices can lead to new real time techniques in ultrasonic and microwave holography and in coherent optics data processing. 

Fig. 9—Transmission reduction in thin-film waveguide when dynamic scattering is excited in nematic overiay.

Fig. 14—Angular dependence of dynamic scattering as a function of voltage. Under narrow beam condition (Type I), the scattering of the original beam near the optic axis results in a reduction in transmission off-axis, however, the scattering results in an increase in light detected. (The crossovers do not necessarily occur at the same angle.)...

Speer, S., Spence, J.C.H. and Ihrig, E. (1990) On differentiation of the scattering matrix in dynamical transmission electron diffraction, Acta Cryst. A, 46, 763-772. 

The droplet sizes of the nanoemulsions characterized by dynamic light scattering at O/S ratios between 50 0 and 70 30 and a constant water content of 90 wt% were between 200 and 220 nm, displaying a slight increase with increasing O/S ratio. Figure 6.3 shows atypical cryo-transmission electron microscope (TEM) image of an... 

SM-1) A method of estimating the current (that is at the time of transmission of next pulse) state of the environment. This is done on the basis of prior measurements together with some model of the dynamics of the environment. It may be important to estimate not only the scatterers of interest (targets) but also those that are not of interest (clutter), since knowledge of the latter may be useful for determination of an optimal radar mode. 

Antibiotic Mg complex induced alteration in the ultrastructural changes in the native and HI depleted chromatin were monitored by thermal melting analysis, polyacrylamide gel mobility assay, dynamic light scattering experiments and transmission electron microscopic studies. Micrococcal nuclease digestion is the biochemical probe to assess the accessibility of the antibiotic Mg + complexes to nucleosomal DNA. 

Abbreviations DR, differential refractometry SLS, static light scattering DLS, dynamic light scattering SAXS, small-angle X-ray scattering TEM. transmission electron microscopy. 

As illustrated by the examples discussed here, the use of FT spectrometers for the observation of surface structures is favored by situations in which the flux of radiation coming from the sample is very low or the data acquisition time is limited. Such cases arise in transmission spectroscopy using strongly absorbing or scattering samples, specular and diffuse reflectance spectroscopy from opaque samples, and emission spectroscopy from low temperature sources. FT spectroscopy is also well suited for observing the dynamics of surface species during adsorption, desorption, and reaction. 

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