de Lima M M, Hey R, Santos P V, Cantarero A
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany.
Phys Rev Lett. 2005 Apr 1;94(12):126805. doi: 10.1103/PhysRevLett.94.126805.
We demonstrate the formation of a dynamic optical superlattice through the modulation of a semiconductor microcavity by stimulated acoustic phonons. The high coherent phonon population produces a folded optical dispersion relation with well-defined energy gaps and renormalized energy levels, which are accessed using reflection and diffraction experiments.