Einstein transition probabilities

I 5.1 Einstein Transition Probabilities, 23 I 5.2 Absorplion Intensity of Atoms, 24 I 5.3 Oscillator Strength, 25 1-6 Resonance Absorption and Emission by Atoms, 27... 

A, A", symmetry species of Cg, 75 Amn, Einstein transition probability of spontaneous emission, 24, 38... 

Einstein transition probabilities for electric dipole transitions... 

The integrated intensity of an electronic transition is often expressed in terms of the oscillator strength or f value , which is dimensionless, or in terms of the Einstein transition probability Ay between the states involved,... 

The Einstein transition probabilities for spontaneous emission are related to the absorption oscillator strengths through the well-known expression,... 

Einstein transition probability - A constant in the Einstein relation A.. + B.p for the probability of a transition between two energy levels i and j in a radiation field of energy density p. The A., coefficient describes the probability of spontaneous emission, while and B.. govern the probability of stimulated... 

The intensity of absorbed radiation is proportional to the Einstein transition probability for stimulated absorption, Bu while that for emitted radiation is proportional to the transition probability for spontaneous emission, Aji [Eqs. (5) and (6)]. The intensities are also proportional to the frequency, v, of absorbed or emitted radiation. 

The Einstein transition probability Aj such that the emitted intensity I is proportional to the product of AE and Aj such that... 

We is the electron number density, A, B and B are the Einstein transition probabilities for spontaneous emission, stimulated emission and absorption and e, and yS are functions of the cross sections for the respective processes as well as of the velocity distribution of the particles involved. is the radiation density (frequency v). 

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