@inproceedingsHannes_Meier_2020, series=SPIE Proceedings, title=k.p-based multiband simulations of non-degenerate two-photon absorption in bulk GaAs, volume=11278, DOI=10.1117/12.2545924, booktitle=Ultrafast Phenomena and Nanophotonics XXIV, author=Hannes, Wolf-Rüdiger and Meier, Torsten, editor=Betz, Markus and Elezzabi, Abdulhakem Y., year=2020, pages=112780S, collection=SPIE Proceedings 

@articleHannes_Meier_2019, title=Higher-order contributions and nonperturbative effects in the nondegenerate nonlinear optical absorption of semiconductors using a two-band model, volume=99, DOI=10.1103/physrevb.99.125301, number=12125301, journal=Physical Review B, author=Hannes, Wolf-Rüdiger and Meier, Torsten, year=2019