Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Degeneracy and population factor

Equations (90), (94), (106), (110) and (138), (144) strictly hold for one single transition in the spectrum, more precisely for a transition between two non-degenerate states and for one polarization orientation (p = x or y, +1 or — 1). In that case all molecules are in the ground state a, leading to the factor Na in k which is related to Ca in 8. If several transitions have the same energy, because of degeneracy or because more than one state is populated, Na remains as such but in Lambert-Beer s law, the concentration becomes Ca, the total concentration of the crystal field manifold states. Therefore, a summation over a and j must be performed leading to the expression  [Pg.45]

The expression for e now contains a population factor. Moreover if the ground state is degenerate a factor 1 must be introduced  [Pg.45]

When the groimd state is degenerate the factor 1 /d will be included in the dipole strength D and the fZi, and Cq parameters as well as the summation over a and j (see below). [Pg.45]

FIGURE 13 Ground and excited degenerate states A and j of the absorbing centre with the non-degenerate components a and j. It is assumed that only the ground states A are populated. [Pg.46]


See other pages where Degeneracy and population factor is mentioned: [Pg.45]   


SEARCH



Degeneracy

Degeneracy factor

© 2024 chempedia.info