Exciton-polariton luminescence from sodium cryptand sodide [(C222)]
Phys. Rev. B 46, 817 – Published 1 July, 1992
DOI: https://doi.org/10.1103/PhysRevB.46.817
Abstract
We have performed spatially and temporally resolved luminescence experiments on various-sized crystals of sodium cryptand [2.2.2] sodide to observe directly the spatial propagation of the optically excited state as well as the dependence of the luminescence specta on crystal size. Small crystals (≤≊50 μm) exhibit a line shape that is distinct from that of larger crystals. A formalism based on polariton dynamics is developed to explain the time-evolution behavior and the dependence of the luminescence on crystal size.