Written in English
|LC Classifications||Microfilm 29557|
|The Physical Object|
|Pagination||viii, 135 l.|
|Number of Pages||135|
|LC Control Number||92896016|
The collisional cooling of laser pre-cooled Ca$^+$ ions by ultracold Na atoms is being studied. Modeling this process requires knowledge of the radiative lifetime of the excited singlet A$^1\Sigma^+$ state of the (NaCa)$^+$ molecular system. We calculate the rate coefficient for radiative charge transfer using a semiclassical by: Two-dimensional transfer and discrete space theory Three-dimensional radiative transfer Time dependent radiative transfer Radiative transfer, entropy and local potentials Radiative transfer in masers Exercises References Symbol index Index Radiative transfer is a branch of atmospheric physics. Radiative transfer has a rich but sometimes confusing language that reflects its diverse heritage, which derives from quantum physics, astronomy, climatology, and electrical engineering. In addition, the radiative transition from T 1 to ground state is spin forbidden, and the intensity of phosphorescence is quite low, thus having nearly no contribution to light emission. As described earlier, the statistical ratio of singlet and triplet states generated through electron-hole recombination in double charge injection process is 1/3.
problems, that are analyzed in chapters 5 and 6, where radiative heat transfer is coupled to convection heat transfer. The effect of radiation on the total heat transfer is studied in chapter 5, which has been published as International Journal of Heat and Mass Transfer, volume 47 (issue 2), pages –, year In chapter 6,File Size: 3MB. consider that the source is a single charge moving in some fairly arbitrary, possibly relativistic, fashion. Here the methods of chapter 9, e.g., multipole expansions, are impractical and there are better ways to approach the problem. 1 Lienard-Wiec hert potentials The current and charge densities produced by a charge ein motion areFile Size: KB. Overview of the Radiation Field of Single Moving Charges Consider a radiating charge moving along a trajectory r0(t). Suppose we wish to measure the radiation Þeld at a point P at a time t. Let the location of this Þeld point be r(t). At time t, the charge is at point S, located at r0(t). But the radiation measured at P was actually. lution of the Equation of Radiative Transfer 10 Solution of the Equation of Radiative Transfer One-half of the general problem of stellar atmospheres revolves around the solution of the equation of radiative transfer. Although equation () represents a very general formulation of radiative transfer, clearly the specific nature of theFile Size: KB.
A charge-transfer complex or electron-donor-acceptor complex is an association of two or more molecules, or of different parts of one large molecule, in which a fraction of electronic charge is transferred between the molecular entities. The resulting electrostatic attraction provides a stabilizing force for the molecular complex. The source molecule from which the charge is transferred is called . Calculations of radiative charge transfer and radiative association rate coefficients are presented. In the case of C and He+, both in their ground states, radiative charge transfer is found to be large compared to direct charge transfer at thermal and lower energies . In the case of C and H+ interacting via triplet molecular potentials, the rate coefficients for radiative association are Author: James F. Babb, Brendan M. McLaughlin. The Equation of Radiative Transfer The method used in this study to solve the equation of radiative transfer is the successive orders of scattering technique. It was chosen for two main reasons; 1) it is physically intuitive, especially as the physics remains clear through the mathematical formalism, and hence relatively easy to code; and 2) it. The radiative and non-radiative transitions that lead to the observation of molecular photoluminescence are typically illustrated by an energy level diagram called the Jablonski diagram. Figure 1 shows a Jablonski diagram that explains the mechanism of light emission in most organic and inorganic luminophores. The spin multiplicity of a given.