Förstner, J., Ahn, K. J., Danckwerts, J., Schaarschmidt, M., Waldmüller, I., Weber, C., &; Knorr, A. (2002). Light Propagation- and Many-particle-induced Non-Lorentzian Lineshapes in Semiconductor Nanooptics. Physica Status Solidi (B), 234(1), 155–165.https://doi.org/10.1002/1521-3951(200211)234:1&#60;155::aid-pssb155&#62;3.0.co;2-r 

Waldmüller, I., Förstner, J., &; Knorr, A. (2002). Theory of ultrafast dynamics and lineshape of semiconductor quantum well intersubband emitters. In Nonlinear Optics: Materials, Fundamentals and Applications. OSA.https://doi.org/10.1364/nlo.2002.we34 

Nielsen, N. C., Linden, S., Kuhl, J., Förstner, J., Knorr, A., Koch, S. W., &; Giessen, H. (2002). Coherent nonlinear pulse propagation on a free-exciton resonance in a semiconductor. Physical Review B, 64(24), 245202-245202–245210.https://doi.org/10.1103/physrevb.64.245202 

Förstner, J., Knorr, A., &; Koch, S. W. (2002). Nonlinear Pulse Propagation in Semiconductors: Hole Burning within a Homogeneous Line. Physical Review Letters, 86(3), 476–479.https://doi.org/10.1103/physrevlett.86.476 

Förstner, J., Knorr, A., Kuckenburg, S., Meier, T., Koch, S. W., Giessen, H.,https://doi.org/10.1002/1521-3951(200009)221:1&#60;453::aid-pssb453&#62;3.0.co;2-q__Kuhl, J. (2002). Nonlinear Polariton Pulse Propagation in Bulk Semiconductors. Physica Status Solidi (B), 221(1), 453–457.https://doi.org/10.1002/1521-3951(200009)221:1&#60;453::aid-pssb453&#62;3.0.co;2-q