TY - CONF AB - We demonstrate temporal and spatial pulse compression and modulational instabilities in the nonlinear defocusing regime near the band edge of bulk GaAs. Experiment and theory show that spatiotemporal coupling is responsible for these surprising phenomena. AU - Nielsen, Nils. C. AU - Siederdissen, Tilmann H. zu AU - Kuhl, Jürgen AU - Schaarschmidt, Martin AU - Förstner, Jens AU - Knorr, Andreas AU - Koch, Stephan W. AU - Giessen, Harald ID - 4279 KW - tet_topic_polariton SN - 3-54024-110-8 T2 - International Conference on Ultrafast Phenomena 2004 TI - Subpicosecond spatiotemporal pulse compression in a nonlinear defocusing material ER -