Jablonski diagram

Figure 17 shows a simplified Jablonski diagram for these transitions.

This process is often visualized with a Jablonski diagram.

The Jablonski diagram describes most of the relaxation mechanisms for excited state molecules.

The generated photon in this case is said to be red shifted, referring to the loss of energy (as the Jablonski diagram shows).

A Jablonski diagram is a diagram that illustrates the electronic states of a molecule and the transitions between them.

Fluorescence is schematically illustrated with the classical Jablonski diagram, first proposed by Jabłoński in 1933 to describe absorption and emission of light.

Molecular orbital diagrams, Jablonski diagrams, and Franck-Condon diagrams.

This is known as the mirror image rule and is related to the Franck-Condon principle which states that electronic transitions are vertical, that is energy changes without distance changing as can be represented with a vertical line in Jablonski diagram.