title: Phonon-induced optical superlattice.
abstract: 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.
authors.affiliation: Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany. mmlimajr@pdi-berlin.de
authors.forename: M M
authors.initials: MM
authors.lastname: de Lima
authors.forename: R
authors.initials: R
authors.lastname: Hey
authors.forename: P V
authors.initials: PV
authors.lastname: Santos
authors.forename: A
authors.initials: A
authors.lastname: Cantarero