%0 Journal Article %T Delay and distortion of slow light pulses by excitons in ZnO %+ A.F. Ioffe Physical-Technical Institute %+ Laboratoire des sciences et matériaux pour l'électronique et d'automatique (LASMEA) %+ Laboratoire Charles Coulomb (L2C) %+ Department of Computer and Information Science - Linköping University %+ Department of Science and Technology [Linköping] %A Shubina, T. V. %A Glasov, M.M. %A Gippius, Nikolay A. %A Toropov, A.A. %A Lagarde, David %A Disseix, Pierre %A Leymarie, Joël %A Gil, Bernard %A Pozina, G. %A P. Bergman, J. %A Monemar, B. %< avec comité de lecture %@ 1098-0121 %J Physical Review B: Condensed Matter and Materials Physics (1998-2015) %I American Physical Society %V 84 %P 075202 %8 2011-08-01 %D 2011 %R 10.1103/PhysRevB.84.075202 %Z 42.50.Ct %Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]Journal articles %X Distortion of light pulses in ZnO caused by both bound and free excitons is demonstrated by time-of-flight spectroscopy. Numerous lines of bound excitons dissect the pulse spectrum and induce slowdown of light propagation around the dips. Exciton-polariton resonances determine the overall pulse delay, which approaches 1.6 ns at 3.374 eV for a 0.3 mm propagation length, as well as the pulse curvature in the time-energy plane and its attenuation. Analysis of cw and time-resolved data yields the excitonic parameters inherent for bulk ZnO. A discrepancy is found between these bulk parameters and those given by surface-probing techniques. %G English %Z IOFFE INSTITUTE ST PETERSBOURG %2 https://hal.science/hal-00633626/document %2 https://hal.science/hal-00633626/file/e075202.pdf %L hal-00633626 %U https://hal.science/hal-00633626 %~ PRES_CLERMONT %~ CNRS %~ UNIV-BPCLERMONT %~ L2C %~ ACL-SF %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021