Electron excitation, and inhibition with EIT/CPT?

jaketodd

It it being debated whether Electromagnetically Induced Transparency (EIT)/Coherent Population Trapping (CPT) can stop a molecule from gaining an electron.

I want now, in this thread, to turn to the possibility of creating transparency/trapping in a molecule that would either suppress electrons (already in the molecule) from gaining energy to a more excited state, or make it so they cannot lose a certain amount of energy to a less excited state. Your thoughts please, and does this diagram apply as an example of the energies required for these phenomena?

Thanks,

Jake