conference paper published Torsten Meier author 3440000-0001-8864-2072 Alexander Trautmann author 38163 M. Stein author F. Schäfer author D. Anders author C. Ngo author J. T. Steiner author Matthias Reichelt author 138 S. Chatterjee author 293 department 35 department 15 department 170 department 230 department The nonlinear optical response of quantum well excitons excited by optical fields is analyzed by numerical solutions of the semiconductor Bloch equations. Differential absorption spectra are computed for resonant pumping at the exciton resonance and the dependence of the absorption changes on the polarization directions of the pump and probe pulses is investigated. Coherent biexcitonic many-body correlations are included in our approach up to third-order in the optical fields. Results are presented for spatially-direct type-I and spatiallyindirect type-II quantum well systems. Due to the spatial inhomogeneity, in type-II structures a finite coupling between excitons of opposite spins exists already on the Hartree-Fock level and contributes to the absorption changes for the case of opposite circularly polarized pump and probe pulses. SPIE2023 eng 10.1117/12.2650169 12419 Meier, Torsten, Alexander Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J. T. Steiner, Matthias Reichelt, and S. Chatterjee. “Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations.” In <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, Vol. 12419. SPIE Proceedings. SPIE, 2023. <a href="https://doi.org/10.1117/12.2650169">https://doi.org/10.1117/12.2650169</a>. T. Meier <i>et al.</i>, “Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations,” in <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, 2023, vol. 12419, doi: <a href="https://doi.org/10.1117/12.2650169">10.1117/12.2650169</a>. Meier T, Trautmann A, Stein M, et al. Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations. In: <i>Ultrafast Phenomena and Nanophotonics XXVII</i>. Vol 12419. SPIE Proceedings. SPIE; 2023. doi:<a href="https://doi.org/10.1117/12.2650169">10.1117/12.2650169</a> Meier, Torsten, et al. “Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations.” <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, vol. 12419, 124190A, SPIE, 2023, doi:<a href="https://doi.org/10.1117/12.2650169">10.1117/12.2650169</a>. @inproceedings{Meier_Trautmann_Stein_Schäfer_Anders_Ngo_Steiner_Reichelt_Chatterjee_2023, series={SPIE Proceedings}, title={Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations}, volume={12419}, DOI={<a href="https://doi.org/10.1117/12.2650169">10.1117/12.2650169</a>}, number={124190A}, booktitle={Ultrafast Phenomena and Nanophotonics XXVII}, publisher={SPIE}, author={Meier, Torsten and Trautmann, Alexander and Stein, M. and Schäfer, F. and Anders, D. and Ngo, C. and Steiner, J. T. and Reichelt, Matthias and Chatterjee, S.}, year={2023}, collection={SPIE Proceedings} } T. Meier, A. Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J.T. Steiner, M. Reichelt, S. Chatterjee, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE, 2023. Meier, T., Trautmann, A., Stein, M., Schäfer, F., Anders, D., Ngo, C., Steiner, J. T., Reichelt, M., &#38; Chatterjee, S. (2023). Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations. <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, <i>12419</i>, Article 124190A. <a href="https://doi.org/10.1117/12.2650169">https://doi.org/10.1117/12.2650169</a> 431902023-03-29T20:22:19Z2023-04-20T14:41:53Z