Cavity polaritons in organic microcavities

One of the unsolved problems arising in the framework of the macroscopic approach is the nature of the lowest energy local states in the microcavity with disordered organics. The nature of states which formally appear in the region of molecular resonance are clear they do not interact with the cavity photon and for this reason are similar to states in non-cavity organic material. However, the nature of cavity polaritons near the lowest end-points deserves careful... 

We note that by changing the physical parameters of the microcavity and organic material, as well as conditions for polariton excitation, one can influence the dynamics described above. One should also be aware that the evolution times are limited by the actual lifetimes r of small wavevector cavity polaritons. Long lifetimes r on the order of 10 ps can be achieved only in microcavities with high quality factors Q = cut. 

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