[{"intvolume":"         5","page":"20-21","citation":{"ieee":"T. Meier, G. von Plessen, J. Feldmann, P. Thomas, E. O. Göbel, and S. W. Koch, “Intrinsic perturbations of Bloch oscillations and Wannier Stark ladders in semiconductor superlattices,” <i>Optics and Photonics News</i>, vol. 5, no. 12, pp. 20–21, 1994, doi: <a href=\"https://doi.org/10.1364/OPN.5.12.000020\">10.1364/OPN.5.12.000020</a>.","chicago":"Meier, Torsten, G. von Plessen, J. Feldmann, P. Thomas, E.O. Göbel, and S.W. Koch. “Intrinsic Perturbations of Bloch Oscillations and Wannier Stark Ladders in Semiconductor Superlattices.” <i>Optics and Photonics News</i> 5, no. 12 (1994): 20–21. <a href=\"https://doi.org/10.1364/OPN.5.12.000020\">https://doi.org/10.1364/OPN.5.12.000020</a>.","ama":"Meier T, von Plessen G, Feldmann J, Thomas P, Göbel EO, Koch SW. Intrinsic perturbations of Bloch oscillations and Wannier Stark ladders in semiconductor superlattices. <i>Optics and Photonics News</i>. 1994;5(12):20-21. doi:<a href=\"https://doi.org/10.1364/OPN.5.12.000020\">10.1364/OPN.5.12.000020</a>","apa":"Meier, T., von Plessen, G., Feldmann, J., Thomas, P., Göbel, E. O., &#38; Koch, S. W. (1994). Intrinsic perturbations of Bloch oscillations and Wannier Stark ladders in semiconductor superlattices. <i>Optics and Photonics News</i>, <i>5</i>(12), 20–21. <a href=\"https://doi.org/10.1364/OPN.5.12.000020\">https://doi.org/10.1364/OPN.5.12.000020</a>","mla":"Meier, Torsten, et al. “Intrinsic Perturbations of Bloch Oscillations and Wannier Stark Ladders in Semiconductor Superlattices.” <i>Optics and Photonics News</i>, vol. 5, no. 12, Optical Society of America, 1994, pp. 20–21, doi:<a href=\"https://doi.org/10.1364/OPN.5.12.000020\">10.1364/OPN.5.12.000020</a>.","bibtex":"@article{Meier_von Plessen_Feldmann_Thomas_Göbel_Koch_1994, title={Intrinsic perturbations of Bloch oscillations and Wannier Stark ladders in semiconductor superlattices}, volume={5}, DOI={<a href=\"https://doi.org/10.1364/OPN.5.12.000020\">10.1364/OPN.5.12.000020</a>}, number={12}, journal={Optics and Photonics News}, publisher={Optical Society of America}, author={Meier, Torsten and von Plessen, G. and Feldmann, J. and Thomas, P. and Göbel, E.O. and Koch, S.W.}, year={1994}, pages={20–21} }","short":"T. Meier, G. von Plessen, J. Feldmann, P. Thomas, E.O. Göbel, S.W. Koch, Optics and Photonics News 5 (1994) 20–21."},"year":"1994","issue":"12","publication_status":"published","doi":"10.1364/OPN.5.12.000020","main_file_link":[{"url":"https://opg.optica.org/opn/viewmedia.cfm?uri=opn-5-12-20"}],"title":"Intrinsic perturbations of Bloch oscillations and Wannier Stark ladders in semiconductor superlattices","volume":5,"date_created":"2023-04-14T23:33:13Z","author":[{"first_name":"Torsten","full_name":"Meier, Torsten","id":"344","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"last_name":"von Plessen","full_name":"von Plessen, G.","first_name":"G."},{"first_name":"J.","last_name":"Feldmann","full_name":"Feldmann, J."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."},{"full_name":"Göbel, E.O.","last_name":"Göbel","first_name":"E.O."},{"full_name":"Koch, S.W.","last_name":"Koch","first_name":"S.W."}],"date_updated":"2023-04-14T23:33:16Z","publisher":"Optical Society of America","status":"public","publication":"Optics and Photonics News","type":"journal_article","extern":"1","language":[{"iso":"eng"}],"department":[{"_id":"293"}],"user_id":"49063","_id":"43596"},{"date_updated":"2023-05-01T11:36:15Z","date_created":"2023-05-01T11:36:11Z","author":[{"first_name":"Torsten","id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"first_name":"J.","last_name":"Kuhl","full_name":"Kuhl, J."},{"first_name":"E.J.","full_name":"Mayer, E.J.","last_name":"Mayer"},{"last_name":"Smith","full_name":"Smith, G.O.","first_name":"G.O."},{"first_name":"D.","last_name":"Bennhardt","full_name":"Bennhardt, D."},{"first_name":"A.","full_name":"Schulze, A.","last_name":"Schulze"},{"last_name":"Thomas","full_name":"Thomas, P.","first_name":"P."},{"full_name":"Hey, R.","last_name":"Hey","first_name":"R."},{"last_name":"Ploog","full_name":"Ploog, K.","first_name":"K."}],"title":"Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells","main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=UP-1994-MD.5"}],"conference":{"start_date":"1994-05-02","name":"International Conference on Ultrafast Phenomena 1994","location":"California, United States","end_date":"1994-05-06"},"doi":"10.1364/UP.1994.MD.5","publication_status":"published","year":"1994","citation":{"ieee":"T. Meier <i>et al.</i>, “Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells,” presented at the International Conference on Ultrafast Phenomena 1994, California, United States, 1994, doi: <a href=\"https://doi.org/10.1364/UP.1994.MD.5\">10.1364/UP.1994.MD.5</a>.","chicago":"Meier, Torsten, J. Kuhl, E.J. Mayer, G.O. Smith, D. Bennhardt, A. Schulze, P. Thomas, R. Hey, and K. Ploog. “Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells.” In <i>International Conference on Ultrafast Phenomena</i>, 1994. <a href=\"https://doi.org/10.1364/UP.1994.MD.5\">https://doi.org/10.1364/UP.1994.MD.5</a>.","ama":"Meier T, Kuhl J, Mayer EJ, et al. Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells. In: <i>International Conference on Ultrafast Phenomena</i>. ; 1994. doi:<a href=\"https://doi.org/10.1364/UP.1994.MD.5\">10.1364/UP.1994.MD.5</a>","bibtex":"@inproceedings{Meier_Kuhl_Mayer_Smith_Bennhardt_Schulze_Thomas_Hey_Ploog_1994, title={Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells}, DOI={<a href=\"https://doi.org/10.1364/UP.1994.MD.5\">10.1364/UP.1994.MD.5</a>}, number={MD.5}, booktitle={International Conference on Ultrafast Phenomena}, author={Meier, Torsten and Kuhl, J. and Mayer, E.J. and Smith, G.O. and Bennhardt, D. and Schulze, A. and Thomas, P. and Hey, R. and Ploog, K.}, year={1994} }","mla":"Meier, Torsten, et al. “Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells.” <i>International Conference on Ultrafast Phenomena</i>, MD.5, 1994, doi:<a href=\"https://doi.org/10.1364/UP.1994.MD.5\">10.1364/UP.1994.MD.5</a>.","short":"T. Meier, J. Kuhl, E.J. Mayer, G.O. Smith, D. Bennhardt, A. Schulze, P. Thomas, R. Hey, K. Ploog, in: International Conference on Ultrafast Phenomena, 1994.","apa":"Meier, T., Kuhl, J., Mayer, E. J., Smith, G. O., Bennhardt, D., Schulze, A., Thomas, P., Hey, R., &#38; Ploog, K. (1994). Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells. <i>International Conference on Ultrafast Phenomena</i>, Article MD.5. International Conference on Ultrafast Phenomena 1994, California, United States. <a href=\"https://doi.org/10.1364/UP.1994.MD.5\">https://doi.org/10.1364/UP.1994.MD.5</a>"},"_id":"44283","user_id":"49063","department":[{"_id":"293"}],"article_number":"MD.5","extern":"1","language":[{"iso":"eng"}],"type":"conference","publication":"International Conference on Ultrafast Phenomena","abstract":[{"text":"The strong influence of exciton/exciton interaction on the nonlinear optical response of the 2D exciton in GaAs quantum wells has been demonstrated in several recent experimental studies. The theoretical model for the microscopic coupling mechanism is still the subject of controversy, however. In ref. [1], we have presented a model including a density dependent coupling between opposite spin excitons which assumes that the interaction results in a renormalization of the matrix elements, dephasing rates and energies of the transition from the single-exciton state to the two-exciton state with respect to the corresponding quantities for the single exciton transitions. In contrast, Wang et al. claim that all experimental observations are explained by a density induced dephasing rate and that biexciton states play no role [2]. Here we present a new 3-pulse degenerate-four-wave-mixing (DFWM) configuration which is able to differentiate between pure local field effects and biexcitonic contributions to the time-integrated signal. Experiments were performed on an almost homogeneously broadened GaAs/Al0.3Ga0.7As single QW (well width 20 nm, photoluminescence line 0.3 meV, homogenous linewidth 0.15 meV) in the backward reflection geometry. The sample was cooled to 10 K and excited by a sequence of three pulses (1.1 ps duration) with equal intensity, wave vectors 𝑘→1,𝑘→2,𝑘→3\r\n and delays τ12 and τ13 between the second and first and the third and first pulse, respectively. The signal was monitored in the direction 𝑘→𝑠=𝑘→1+𝑘→2−𝑘→3\r\n which provides no signal for the chosen pulse length if local field and renormalization effects are negligible. The peak intensity of the time-integrated DFWM signal has been calculated by solving the optical Bloch for a system of two non-interacting two-level systems (2LS) with opposite circular polarization selection rules (local field effect) and for the renormalized four-level system (4LS) depicted in Fig. 1 which assumes the formation of biexcitons between excitons with opposite spins. The signal strength is proportional to the strength of the local field in the case of the 2LS and to the renormalization for the 4LS. The peak signal intensities expected for pure local field and pure biexction contributions are summarized in the second and third column of Table 1 for eight experimental configurations applying different linear and circularly polarized pulses. The values are normalized to the signal strength predicted for three parallel linearly polarized pulses. Close inspection of the data reveals remarkable differences of the peak amplitude with polarization geometry for the two coupling models.","lang":"eng"}],"status":"public"},{"year":"1994","page":"187-188","citation":{"apa":"Meier, T., Mayer, E. J., Smith, G. O., Kuhl, J., Schulze, A., Bennhardt, D., Koch, S. W., Thomas, P., Hey, R., &#38; Ploog, K. (1994). Polarization selection rules for quantum beating between light and heavy holes in GaAs quantum wells. <i>Proceedings of the 5th European Quantum Electronics Conference</i>, 187–188.","bibtex":"@inproceedings{Meier_Mayer_Smith_Kuhl_Schulze_Bennhardt_Koch_Thomas_Hey_Ploog_1994, title={Polarization selection rules for quantum beating between light and heavy holes in GaAs quantum wells}, booktitle={Proceedings of the 5th European Quantum Electronics Conference}, author={Meier, Torsten and Mayer, E.J. and Smith, G.O. and Kuhl, J. and Schulze, A. and Bennhardt, D. and Koch, S.W. and Thomas, P. and Hey, R. and Ploog, K.}, year={1994}, pages={187–188} }","short":"T. Meier, E.J. Mayer, G.O. Smith, J. Kuhl, A. Schulze, D. Bennhardt, S.W. Koch, P. Thomas, R. Hey, K. Ploog, in: Proceedings of the 5th European Quantum Electronics Conference, 1994, pp. 187–188.","mla":"Meier, Torsten, et al. “Polarization Selection Rules for Quantum Beating between Light and Heavy Holes in GaAs Quantum Wells.” <i>Proceedings of the 5th European Quantum Electronics Conference</i>, 1994, pp. 187–88.","ama":"Meier T, Mayer EJ, Smith GO, et al. Polarization selection rules for quantum beating between light and heavy holes in GaAs quantum wells. In: <i>Proceedings of the 5th European Quantum Electronics Conference</i>. ; 1994:187-188.","chicago":"Meier, Torsten, E.J. Mayer, G.O. Smith, J. Kuhl, A. Schulze, D. Bennhardt, S.W. Koch, P. Thomas, R. Hey, and K. Ploog. “Polarization Selection Rules for Quantum Beating between Light and Heavy Holes in GaAs Quantum Wells.” In <i>Proceedings of the 5th European Quantum Electronics Conference</i>, 187–88, 1994.","ieee":"T. Meier <i>et al.</i>, “Polarization selection rules for quantum beating between light and heavy holes in GaAs quantum wells,” in <i>Proceedings of the 5th European Quantum Electronics Conference</i>, Amsterdam, Netherlands, 1994, pp. 187–188."},"publication_status":"published","title":"Polarization selection rules for quantum beating between light and heavy holes in GaAs quantum wells","conference":{"start_date":"1994-08-28","name":"European Quantum Electronics Conference 1994","location":"Amsterdam, Netherlands","end_date":"1994-09-02"},"main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=EQEC-1994-QThB4"}],"date_updated":"2023-05-01T11:41:04Z","author":[{"full_name":"Meier, Torsten","id":"344","last_name":"Meier","orcid":"0000-0001-8864-2072","first_name":"Torsten"},{"last_name":"Mayer","full_name":"Mayer, E.J.","first_name":"E.J."},{"full_name":"Smith, G.O.","last_name":"Smith","first_name":"G.O."},{"first_name":"J.","full_name":"Kuhl, J.","last_name":"Kuhl"},{"full_name":"Schulze, A.","last_name":"Schulze","first_name":"A."},{"full_name":"Bennhardt, D.","last_name":"Bennhardt","first_name":"D."},{"first_name":"S.W.","last_name":"Koch","full_name":"Koch, S.W."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."},{"first_name":"R.","last_name":"Hey","full_name":"Hey, R."},{"first_name":"K.","last_name":"Ploog","full_name":"Ploog, K."}],"date_created":"2023-05-01T11:41:01Z","abstract":[{"text":"Several recent experimental and theoretical studies have demonstrated the importance of exciton/exciton coupling due to Coulomb interactions for the nonlinear optical response of the 2D exciton in GaAs quantum wells (QWs).1,2 These results imply that multilevel models are required in order to provide a theoretically appropriate description of the nonlinear behavior. Previous application of a renormalized 9-level system has proven successful in describing the third-order response of hh-excitons in GaAs quantum wells.2 We present a comprehensive experimental and theoretical investigation of the polarization selection rules for degenerate- four-wave-mixing (DFWM) and quantum beating of hh and lh transitions in a GaAs QW. Depending on the polarization and temporal sequence of the three pulses simultaneous excitation of the hh and lh transitions generates either quantum beats (QB), no modulation of the signal, or a superposition of QB and polarization interference (PI) effects as proved by spectrally resolved (SR)-DFWM.","lang":"eng"}],"status":"public","publication":"Proceedings of the 5th European Quantum Electronics Conference","type":"conference","language":[{"iso":"eng"}],"extern":"1","_id":"44284","department":[{"_id":"293"}],"user_id":"49063"},{"citation":{"ieee":"T. Meier <i>et al.</i>, “Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs Quantum Wells,” presented at the International Conference on Ultrafast Phenomena 1994, California, United States, 1994.","chicago":"Meier, Torsten, E.J. Mayer, G.O. Smith, J. Kuhl, D. Bennhardt, A. Schulze, P. Thomas, R. Hey, and K. Ploog. “Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs Quantum Wells.” In <i>International Conference on Ultrafast Phenomena</i>, 1994.","ama":"Meier T, Mayer EJ, Smith GO, et al. Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs Quantum Wells. In: <i>International Conference on Ultrafast Phenomena</i>. ; 1994.","mla":"Meier, Torsten, et al. “Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs Quantum Wells.” <i>International Conference on Ultrafast Phenomena</i>, ThD.22, 1994.","short":"T. Meier, E.J. Mayer, G.O. Smith, J. Kuhl, D. Bennhardt, A. Schulze, P. Thomas, R. Hey, K. Ploog, in: International Conference on Ultrafast Phenomena, 1994.","bibtex":"@inproceedings{Meier_Mayer_Smith_Kuhl_Bennhardt_Schulze_Thomas_Hey_Ploog_1994, title={Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs Quantum Wells}, number={ThD.22}, booktitle={International Conference on Ultrafast Phenomena}, author={Meier, Torsten and Mayer, E.J. and Smith, G.O. and Kuhl, J. and Bennhardt, D. and Schulze, A. and Thomas, P. and Hey, R. and Ploog, K.}, year={1994} }","apa":"Meier, T., Mayer, E. J., Smith, G. O., Kuhl, J., Bennhardt, D., Schulze, A., Thomas, P., Hey, R., &#38; Ploog, K. (1994). Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs Quantum Wells. <i>International Conference on Ultrafast Phenomena</i>, Article ThD.22. International Conference on Ultrafast Phenomena 1994, California, United States."},"year":"1994","publication_status":"published","main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=UP-1994-ThD.22"}],"conference":{"location":"California, United States","end_date":"1994-05-06","start_date":"1994-05-02","name":"International Conference on Ultrafast Phenomena 1994"},"title":"Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs Quantum Wells","author":[{"first_name":"Torsten","id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"last_name":"Mayer","full_name":"Mayer, E.J.","first_name":"E.J."},{"first_name":"G.O.","last_name":"Smith","full_name":"Smith, G.O."},{"last_name":"Kuhl","full_name":"Kuhl, J.","first_name":"J."},{"first_name":"D.","last_name":"Bennhardt","full_name":"Bennhardt, D."},{"first_name":"A.","full_name":"Schulze, A.","last_name":"Schulze"},{"first_name":"P.","full_name":"Thomas, P.","last_name":"Thomas"},{"first_name":"R.","last_name":"Hey","full_name":"Hey, R."},{"first_name":"K.","full_name":"Ploog, K.","last_name":"Ploog"}],"date_created":"2023-05-01T11:33:22Z","date_updated":"2023-05-01T11:33:25Z","status":"public","abstract":[{"text":"Although the importance of exciton/exciton interactions for the nonlinear optical response of GaAs quantum wells (QW) is well established by many experimental observations, the role of biexciton states in these processes is still an open question, even at low excitation densities. Evidence for the formation of biexcitons has been independently derived from pump-probe studies [1], from the density dependence of the photoluminescence (PL) line shape [2] and from signal modulations observed in degenerate-four-wave-mixing (DFWM) with incoherent light pulses [3]. Here, we report on time-resolved DFWM with parallel (PP) and cross-polarized (CP) pulses. Depending on the polarization geometry, the signals reveal strong quantum beats which correspond to the splitting between either the heavy hole (hh) and light hole (lh) exciton or the hh exciton and the biexciton.","lang":"eng"}],"type":"conference","publication":"International Conference on Ultrafast Phenomena","extern":"1","language":[{"iso":"eng"}],"article_number":"ThD.22","user_id":"49063","department":[{"_id":"293"}],"_id":"44282"},{"language":[{"iso":"eng"}],"abstract":[{"text":"We have performed sub-picosecond four-wave mixing experiments on a series of symmetrically strained (GaIn)As/Ga(AsP) multiple quantum wells. We show that these measurements allow a precise determination of exciton binding energies. One of the advantages of this quantum beat method as compared to linear optical methods is that a determination of the exciton binding energy is possible even in the presence of considerable inhomogeneous broadening. In addition, the dependence of the exciton binding energy on the strain in the (GaIn)As quantum well layers suggests that the reduced electron-hole effective mass is not influenced by the increase in strain.","lang":"eng"}],"publication":"Proceedings der 7. International Conference on Superlattices, Microstructures and Microdevices","title":"Determination of excitonic binding energies in symmetrically strained (GaIn)As/Ga(PAs) multiple quantum wells using quantum beat spectroscopy","date_created":"2023-04-15T00:05:39Z","year":"1994","issue":"3","extern":"1","_id":"43600","series_title":"Superlattices and microstructures","user_id":"49063","department":[{"_id":"293"}],"status":"public","type":"conference","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/abs/pii/S0749603684710640"}],"doi":"10.1006/spmi.1994.1064","conference":{"location":"Banff, Canada"},"date_updated":"2023-05-01T11:37:06Z","author":[{"full_name":"Meier, Torsten","id":"344","orcid":"0000-0001-8864-2072","last_name":"Meier","first_name":"Torsten"},{"first_name":"M.","full_name":"Koch, M.","last_name":"Koch"},{"first_name":"W.","full_name":"Stolz, W.","last_name":"Stolz"},{"first_name":"J.","last_name":"Feldmann","full_name":"Feldmann, J."},{"last_name":"Thomas","full_name":"Thomas, P.","first_name":"P."},{"first_name":"E.O.","full_name":"Göbel, E.O.","last_name":"Göbel"}],"volume":15,"citation":{"apa":"Meier, T., Koch, M., Stolz, W., Feldmann, J., Thomas, P., &#38; Göbel, E. O. (1994). Determination of excitonic binding energies in symmetrically strained (GaIn)As/Ga(PAs) multiple quantum wells using quantum beat spectroscopy. <i>Proceedings Der 7. International Conference on Superlattices, Microstructures and Microdevices</i>, <i>15</i>(3), 329–332. <a href=\"https://doi.org/10.1006/spmi.1994.1064\">https://doi.org/10.1006/spmi.1994.1064</a>","short":"T. Meier, M. Koch, W. Stolz, J. Feldmann, P. Thomas, E.O. Göbel, in: Proceedings Der 7. International Conference on Superlattices, Microstructures and Microdevices, 1994, pp. 329–332.","mla":"Meier, Torsten, et al. “Determination of Excitonic Binding Energies in Symmetrically Strained (GaIn)As/Ga(PAs) Multiple Quantum Wells Using Quantum Beat Spectroscopy.” <i>Proceedings Der 7. International Conference on Superlattices, Microstructures and Microdevices</i>, vol. 15, no. 3, 1994, pp. 329–32, doi:<a href=\"https://doi.org/10.1006/spmi.1994.1064\">10.1006/spmi.1994.1064</a>.","bibtex":"@inproceedings{Meier_Koch_Stolz_Feldmann_Thomas_Göbel_1994, series={Superlattices and microstructures}, title={Determination of excitonic binding energies in symmetrically strained (GaIn)As/Ga(PAs) multiple quantum wells using quantum beat spectroscopy}, volume={15}, DOI={<a href=\"https://doi.org/10.1006/spmi.1994.1064\">10.1006/spmi.1994.1064</a>}, number={3}, booktitle={Proceedings der 7. International Conference on Superlattices, Microstructures and Microdevices}, author={Meier, Torsten and Koch, M. and Stolz, W. and Feldmann, J. and Thomas, P. and Göbel, E.O.}, year={1994}, pages={329–332}, collection={Superlattices and microstructures} }","ama":"Meier T, Koch M, Stolz W, Feldmann J, Thomas P, Göbel EO. Determination of excitonic binding energies in symmetrically strained (GaIn)As/Ga(PAs) multiple quantum wells using quantum beat spectroscopy. In: <i>Proceedings Der 7. International Conference on Superlattices, Microstructures and Microdevices</i>. Vol 15. Superlattices and microstructures. ; 1994:329-332. doi:<a href=\"https://doi.org/10.1006/spmi.1994.1064\">10.1006/spmi.1994.1064</a>","chicago":"Meier, Torsten, M. Koch, W. Stolz, J. Feldmann, P. Thomas, and E.O. Göbel. “Determination of Excitonic Binding Energies in Symmetrically Strained (GaIn)As/Ga(PAs) Multiple Quantum Wells Using Quantum Beat Spectroscopy.” In <i>Proceedings Der 7. International Conference on Superlattices, Microstructures and Microdevices</i>, 15:329–32. Superlattices and Microstructures, 1994. <a href=\"https://doi.org/10.1006/spmi.1994.1064\">https://doi.org/10.1006/spmi.1994.1064</a>.","ieee":"T. Meier, M. Koch, W. Stolz, J. Feldmann, P. Thomas, and E. O. Göbel, “Determination of excitonic binding energies in symmetrically strained (GaIn)As/Ga(PAs) multiple quantum wells using quantum beat spectroscopy,” in <i>Proceedings der 7. International Conference on Superlattices, Microstructures and Microdevices</i>, Banff, Canada, 1994, vol. 15, no. 3, pp. 329–332, doi: <a href=\"https://doi.org/10.1006/spmi.1994.1064\">10.1006/spmi.1994.1064</a>."},"intvolume":"        15","page":"329-332","publication_status":"published"},{"main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=IQEC-1994-QMC7"}],"conference":{"name":"International Quantum Electronics Conference 1994","start_date":"1994-05-08","end_date":"1994-05-13","location":"Anaheim, California United States"},"title":"Field-induced dynamics of a wave packet in a wide superlattice miniband","author":[{"first_name":"Torsten","id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"first_name":"G.","full_name":"von Plessen, G.","last_name":"von Plessen"},{"first_name":"J.","full_name":"Feldmann, J.","last_name":"Feldmann"},{"first_name":"E.O.","last_name":"Göbel","full_name":"Göbel, E.O."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."},{"full_name":"Goossen, K.W.","last_name":"Goossen","first_name":"K.W."},{"first_name":"J.M.","last_name":"Kuo","full_name":"Kuo, J.M."},{"last_name":"Kopf","full_name":"Kopf, R.F.","first_name":"R.F."}],"date_created":"2023-05-01T11:30:06Z","date_updated":"2023-05-01T11:30:09Z","citation":{"ieee":"T. Meier <i>et al.</i>, “Field-induced dynamics of a wave packet in a wide superlattice miniband,” presented at the International Quantum Electronics Conference 1994, Anaheim, California United States, 1994.","chicago":"Meier, Torsten, G. von Plessen, J. Feldmann, E.O. Göbel, P. Thomas, K.W. Goossen, J.M. Kuo, and R.F. Kopf. “Field-Induced Dynamics of a Wave Packet in a Wide Superlattice Miniband.” In <i>International Quantum Electronics Conference</i>, 1994.","ama":"Meier T, von Plessen G, Feldmann J, et al. Field-induced dynamics of a wave packet in a wide superlattice miniband. In: <i>International Quantum Electronics Conference</i>. ; 1994.","apa":"Meier, T., von Plessen, G., Feldmann, J., Göbel, E. O., Thomas, P., Goossen, K. W., Kuo, J. M., &#38; Kopf, R. F. (1994). Field-induced dynamics of a wave packet in a wide superlattice miniband. <i>International Quantum Electronics Conference</i>, Article QMC7. International Quantum Electronics Conference 1994, Anaheim, California United States.","short":"T. Meier, G. von Plessen, J. Feldmann, E.O. Göbel, P. Thomas, K.W. Goossen, J.M. Kuo, R.F. Kopf, in: International Quantum Electronics Conference, 1994.","mla":"Meier, Torsten, et al. “Field-Induced Dynamics of a Wave Packet in a Wide Superlattice Miniband.” <i>International Quantum Electronics Conference</i>, QMC7, 1994.","bibtex":"@inproceedings{Meier_von Plessen_Feldmann_Göbel_Thomas_Goossen_Kuo_Kopf_1994, title={Field-induced dynamics of a wave packet in a wide superlattice miniband}, number={QMC7}, booktitle={International Quantum Electronics Conference}, author={Meier, Torsten and von Plessen, G. and Feldmann, J. and Göbel, E.O. and Thomas, P. and Goossen, K.W. and Kuo, J.M. and Kopf, R.F.}, year={1994} }"},"year":"1994","publication_status":"published","publication_identifier":{"isbn":["1-55752-342-8"]},"language":[{"iso":"eng"}],"extern":"1","article_number":"QMC7","user_id":"49063","department":[{"_id":"293"}],"_id":"44280","status":"public","abstract":[{"lang":"eng","text":"In the absence of scattering mechanisms, a crystal electron subjected to a homogeneous electric field undergoes a periodic motion in both momentum and real space. This oscillatory motion is known as Bloch oscillations (BOs) and has recently been detected in transient four-wave mixing (FWM) and Tera-Hertz emission experiments on semiconductor superlattices. It is generally assumed that the minimum field required for the observation of BOs is controlled by the rate of scattering in the material. However, an experimental verification of this point is still lacking."}],"type":"conference","publication":"International Quantum Electronics Conference"},{"abstract":[{"text":"The strong nonlinear optical response of the 2D exciton in GaAs quantum wells at relatively low excitation densities has been observed in many experimental studies in accordance with theoretical predictions. In principle, exciton/exciton interaction results in a renormalization of the transition matrix elements, dephasing rates and frequencies of the excitonic states. Wang et al.1 claimed that all experimental results can be explained by a density- induced enhanced dephasing rate. In a previous paper,2 we have suggested a density dependent coupling between opposite spin excitons, which involves all three renormalization phenomena.","lang":"eng"}],"status":"public","publication":"European Quantum Electronics Conference","type":"conference","article_number":"QThB5","extern":"1","language":[{"iso":"eng"}],"_id":"44279","department":[{"_id":"293"}],"user_id":"49063","year":"1994","citation":{"apa":"Meier, T., Smith, G. O., Mayer, E. J., Kuhl, J., Schulze, A., Bennhardt, D., Koch, S. W., Thomas, P., Hey, R., &#38; Ploog, K. (1994). Direct verification of the existence of biexcitons in GaAs qauntum wells. <i>European Quantum Electronics Conference</i>, Article QThB5. European Quantum Electronics Conference 1994, Amsterdam, Netherlands.","mla":"Meier, Torsten, et al. “Direct Verification of the Existence of Biexcitons in GaAs Qauntum Wells.” <i>European Quantum Electronics Conference</i>, QThB5, 1994.","short":"T. Meier, G.O. Smith, E.J. Mayer, J. Kuhl, A. Schulze, D. Bennhardt, S.W. Koch, P. Thomas, R. Hey, K. Ploog, in: European Quantum Electronics Conference, 1994.","bibtex":"@inproceedings{Meier_Smith_Mayer_Kuhl_Schulze_Bennhardt_Koch_Thomas_Hey_Ploog_1994, title={Direct verification of the existence of biexcitons in GaAs qauntum wells}, number={QThB5}, booktitle={European Quantum Electronics Conference}, author={Meier, Torsten and Smith, G.O. and Mayer, E.J. and Kuhl, J. and Schulze, A. and Bennhardt, D. and Koch, S.W. and Thomas, P. and Hey, R. and Ploog, K.}, year={1994} }","chicago":"Meier, Torsten, G.O. Smith, E.J. Mayer, J. Kuhl, A. Schulze, D. Bennhardt, S.W. Koch, P. Thomas, R. Hey, and K. Ploog. “Direct Verification of the Existence of Biexcitons in GaAs Qauntum Wells.” In <i>European Quantum Electronics Conference</i>, 1994.","ieee":"T. Meier <i>et al.</i>, “Direct verification of the existence of biexcitons in GaAs qauntum wells,” presented at the European Quantum Electronics Conference 1994, Amsterdam, Netherlands, 1994.","ama":"Meier T, Smith GO, Mayer EJ, et al. Direct verification of the existence of biexcitons in GaAs qauntum wells. In: <i>European Quantum Electronics Conference</i>. ; 1994."},"publication_status":"published","title":"Direct verification of the existence of biexcitons in GaAs qauntum wells","conference":{"location":"Amsterdam, Netherlands","end_date":"1994-09-02","start_date":"1994-08-28","name":"European Quantum Electronics Conference 1994"},"main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=EQEC-1994-QThB5"}],"date_updated":"2023-05-01T11:25:17Z","author":[{"full_name":"Meier, Torsten","id":"344","last_name":"Meier","orcid":"0000-0001-8864-2072","first_name":"Torsten"},{"first_name":"G.O.","full_name":"Smith, G.O.","last_name":"Smith"},{"last_name":"Mayer","full_name":"Mayer, E.J.","first_name":"E.J."},{"first_name":"J.","last_name":"Kuhl","full_name":"Kuhl, J."},{"full_name":"Schulze, A.","last_name":"Schulze","first_name":"A."},{"first_name":"D.","full_name":"Bennhardt, D.","last_name":"Bennhardt"},{"full_name":"Koch, S.W.","last_name":"Koch","first_name":"S.W."},{"last_name":"Thomas","full_name":"Thomas, P.","first_name":"P."},{"first_name":"R.","full_name":"Hey, R.","last_name":"Hey"},{"full_name":"Ploog, K.","last_name":"Ploog","first_name":"K."}],"date_created":"2023-05-01T11:25:13Z"},{"citation":{"ieee":"T. Meier <i>et al.</i>, “Interplay Between Inhomogeneous Broadening and Coulomb Interaction in the Dynamics of Excitonic Wave Packets,” presented at the International Conference on Ultrafast Phenomena 1994, California, United States, 1994, doi: <a href=\"https://doi.org/10.1364/UP.1994.TuE.3\">10.1364/UP.1994.TuE.3</a>.","chicago":"Meier, Torsten, M. Koch, F. Jahnke, J. Feldmann, W. Schäfer, P. Thomas, S.W. Koch, E.O. Göbel, and H. Nickel. “Interplay Between Inhomogeneous Broadening and Coulomb Interaction in the Dynamics of Excitonic Wave Packets,” 1994. <a href=\"https://doi.org/10.1364/UP.1994.TuE.3\">https://doi.org/10.1364/UP.1994.TuE.3</a>.","ama":"Meier T, Koch M, Jahnke F, et al. Interplay Between Inhomogeneous Broadening and Coulomb Interaction in the Dynamics of Excitonic Wave Packets. In: ; 1994. doi:<a href=\"https://doi.org/10.1364/UP.1994.TuE.3\">10.1364/UP.1994.TuE.3</a>","mla":"Meier, Torsten, et al. <i>Interplay Between Inhomogeneous Broadening and Coulomb Interaction in the Dynamics of Excitonic Wave Packets</i>. TuE.3, 1994, doi:<a href=\"https://doi.org/10.1364/UP.1994.TuE.3\">10.1364/UP.1994.TuE.3</a>.","short":"T. Meier, M. Koch, F. Jahnke, J. Feldmann, W. Schäfer, P. Thomas, S.W. Koch, E.O. Göbel, H. Nickel, in: 1994.","bibtex":"@inproceedings{Meier_Koch_Jahnke_Feldmann_Schäfer_Thomas_Koch_Göbel_Nickel_1994, title={Interplay Between Inhomogeneous Broadening and Coulomb Interaction in the Dynamics of Excitonic Wave Packets}, DOI={<a href=\"https://doi.org/10.1364/UP.1994.TuE.3\">10.1364/UP.1994.TuE.3</a>}, number={TuE.3}, author={Meier, Torsten and Koch, M. and Jahnke, F. and Feldmann, J. and Schäfer, W. and Thomas, P. and Koch, S.W. and Göbel, E.O. and Nickel, H.}, year={1994} }","apa":"Meier, T., Koch, M., Jahnke, F., Feldmann, J., Schäfer, W., Thomas, P., Koch, S. W., Göbel, E. O., &#38; Nickel, H. (1994). <i>Interplay Between Inhomogeneous Broadening and Coulomb Interaction in the Dynamics of Excitonic Wave Packets</i> (TuE.3). Article TuE.3. International Conference on Ultrafast Phenomena 1994, California, United States. <a href=\"https://doi.org/10.1364/UP.1994.TuE.3\">https://doi.org/10.1364/UP.1994.TuE.3</a>"},"year":"1994","publication_status":"published","doi":"10.1364/UP.1994.TuE.3","conference":{"location":"California, United States","end_date":"1994-05-06","start_date":"1994-05-02","name":"International Conference on Ultrafast Phenomena 1994"},"main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=UP-1994-TuE.3"}],"title":"Interplay Between Inhomogeneous Broadening and Coulomb Interaction in the Dynamics of Excitonic Wave Packets","author":[{"orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten","first_name":"Torsten"},{"first_name":"M.","full_name":"Koch, M.","last_name":"Koch"},{"last_name":"Jahnke","full_name":"Jahnke, F.","first_name":"F."},{"first_name":"J.","full_name":"Feldmann, J.","last_name":"Feldmann"},{"last_name":"Schäfer","full_name":"Schäfer, W.","first_name":"W."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."},{"first_name":"S.W.","full_name":"Koch, S.W.","last_name":"Koch"},{"first_name":"E.O.","last_name":"Göbel","full_name":"Göbel, E.O."},{"first_name":"H.","full_name":"Nickel, H.","last_name":"Nickel"}],"date_created":"2023-05-01T11:46:18Z","date_updated":"2023-05-01T11:46:21Z","status":"public","abstract":[{"lang":"eng","text":"A proper description of subpicosecond four-wave-mixing (FWM) experiments for excitonic transitions in semiconductor heterostructures must consider the fact that the spectrally broad laser pulses excite not only the 1s bound exciton state but also energetically higher bound exciton states and the lower-lying part of the unbound continuum states. In this paper, we report results of transient and time-resolved FWM-experiments in which such ’excitonic wave packets’ play a crucial role. In addition, a theoretical treatment of the problem based on the solution of the semiconductor Bloch is presented. We show that the time-dependent nonlinear response is determined by an interplay between inhomogeneous broadening and Coulomb interaction."}],"type":"conference","extern":"1","language":[{"iso":"eng"}],"article_number":"TuE.3","department":[{"_id":"293"}],"user_id":"49063","_id":"44285"},{"citation":{"apa":"Schmidt, W. G., Wenzien, B., &#38; Bechstedt, F. (1994). Chemisorption of antimony on GaAs(110). <i>Physical Review B</i>, <i>49</i>(7), 4731–4744. <a href=\"https://doi.org/10.1103/physrevb.49.4731\">https://doi.org/10.1103/physrevb.49.4731</a>","short":"W.G. Schmidt, B. Wenzien, F. Bechstedt, Physical Review B 49 (1994) 4731–4744.","mla":"Schmidt, Wolf Gero, et al. “Chemisorption of Antimony on GaAs(110).” <i>Physical Review B</i>, vol. 49, no. 7, 1994, pp. 4731–44, doi:<a href=\"https://doi.org/10.1103/physrevb.49.4731\">10.1103/physrevb.49.4731</a>.","bibtex":"@article{Schmidt_Wenzien_Bechstedt_1994, title={Chemisorption of antimony on GaAs(110)}, volume={49}, DOI={<a href=\"https://doi.org/10.1103/physrevb.49.4731\">10.1103/physrevb.49.4731</a>}, number={7}, journal={Physical Review B}, author={Schmidt, Wolf Gero and Wenzien, B. and Bechstedt, F.}, year={1994}, pages={4731–4744} }","chicago":"Schmidt, Wolf Gero, B. Wenzien, and F. Bechstedt. “Chemisorption of Antimony on GaAs(110).” <i>Physical Review B</i> 49, no. 7 (1994): 4731–44. <a href=\"https://doi.org/10.1103/physrevb.49.4731\">https://doi.org/10.1103/physrevb.49.4731</a>.","ieee":"W. G. Schmidt, B. Wenzien, and F. Bechstedt, “Chemisorption of antimony on GaAs(110),” <i>Physical Review B</i>, vol. 49, no. 7, pp. 4731–4744, 1994, doi: <a href=\"https://doi.org/10.1103/physrevb.49.4731\">10.1103/physrevb.49.4731</a>.","ama":"Schmidt WG, Wenzien B, Bechstedt F. Chemisorption of antimony on GaAs(110). <i>Physical Review B</i>. 1994;49(7):4731-4744. doi:<a href=\"https://doi.org/10.1103/physrevb.49.4731\">10.1103/physrevb.49.4731</a>"},"page":"4731-4744","intvolume":"        49","year":"1994","issue":"7","publication_status":"published","publication_identifier":{"issn":["0163-1829","1095-3795"]},"doi":"10.1103/physrevb.49.4731","title":"Chemisorption of antimony on GaAs(110)","date_created":"2019-10-15T10:08:58Z","author":[{"first_name":"Wolf Gero","id":"468","full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076"},{"last_name":"Wenzien","full_name":"Wenzien, B.","first_name":"B."},{"first_name":"F.","last_name":"Bechstedt","full_name":"Bechstedt, F."}],"volume":49,"date_updated":"2025-12-16T07:37:14Z","status":"public","type":"journal_article","publication":"Physical Review B","language":[{"iso":"eng"}],"user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"}],"_id":"13856"},{"date_updated":"2025-12-16T07:37:34Z","volume":"307-309","author":[{"full_name":"Schmidt, Wolf Gero","id":"468","orcid":"0000-0002-2717-5076","last_name":"Schmidt","first_name":"Wolf Gero"},{"first_name":"Bernd","full_name":"Wenzien, Bernd","last_name":"Wenzien"},{"first_name":"Friedhelm","full_name":"Bechstedt, Friedhelm","last_name":"Bechstedt"}],"date_created":"2019-10-15T10:07:25Z","title":"Coverage-dependent bonding of Sb on GaAs (110)","doi":"10.1016/0039-6028(94)90400-6","publication_identifier":{"issn":["0039-6028"]},"publication_status":"published","issue":"Part A","year":"1994","page":"235-240","citation":{"short":"W.G. Schmidt, B. Wenzien, F. Bechstedt, Surface Science 307–309 (1994) 235–240.","bibtex":"@article{Schmidt_Wenzien_Bechstedt_1994, title={Coverage-dependent bonding of Sb on GaAs (110)}, volume={307–309}, DOI={<a href=\"https://doi.org/10.1016/0039-6028(94)90400-6\">10.1016/0039-6028(94)90400-6</a>}, number={Part A}, journal={Surface Science}, author={Schmidt, Wolf Gero and Wenzien, Bernd and Bechstedt, Friedhelm}, year={1994}, pages={235–240} }","mla":"Schmidt, Wolf Gero, et al. “Coverage-Dependent Bonding of Sb on GaAs (110).” <i>Surface Science</i>, vol. 307–309, no. Part A, 1994, pp. 235–40, doi:<a href=\"https://doi.org/10.1016/0039-6028(94)90400-6\">10.1016/0039-6028(94)90400-6</a>.","apa":"Schmidt, W. G., Wenzien, B., &#38; Bechstedt, F. (1994). Coverage-dependent bonding of Sb on GaAs (110). <i>Surface Science</i>, <i>307–309</i>(Part A), 235–240. <a href=\"https://doi.org/10.1016/0039-6028(94)90400-6\">https://doi.org/10.1016/0039-6028(94)90400-6</a>","chicago":"Schmidt, Wolf Gero, Bernd Wenzien, and Friedhelm Bechstedt. “Coverage-Dependent Bonding of Sb on GaAs (110).” <i>Surface Science</i> 307–309, no. Part A (1994): 235–40. <a href=\"https://doi.org/10.1016/0039-6028(94)90400-6\">https://doi.org/10.1016/0039-6028(94)90400-6</a>.","ieee":"W. G. Schmidt, B. Wenzien, and F. Bechstedt, “Coverage-dependent bonding of Sb on GaAs (110),” <i>Surface Science</i>, vol. 307–309, no. Part A, pp. 235–240, 1994, doi: <a href=\"https://doi.org/10.1016/0039-6028(94)90400-6\">10.1016/0039-6028(94)90400-6</a>.","ama":"Schmidt WG, Wenzien B, Bechstedt F. Coverage-dependent bonding of Sb on GaAs (110). <i>Surface Science</i>. 1994;307-309(Part A):235-240. doi:<a href=\"https://doi.org/10.1016/0039-6028(94)90400-6\">10.1016/0039-6028(94)90400-6</a>"},"_id":"13855","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"}],"user_id":"16199","language":[{"iso":"eng"}],"publication":"Surface Science","type":"journal_article","status":"public"},{"status":"public","publication":"Europhysics Letters (EPL)","type":"journal_article","language":[{"iso":"eng"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"}],"user_id":"16199","_id":"13853","page":"357-362","intvolume":"        25","citation":{"apa":"Bechstedt, F., Schmidt, W. G., &#38; Wenzien, B. (1994). Energetics and Structure of Ordered Sb Overlayers and Sb Clusters on GaAs(110) Probed by Ab Initio Calculations. <i>Europhysics Letters (EPL)</i>, <i>25</i>(5), 357–362. <a href=\"https://doi.org/10.1209/0295-5075/25/5/008\">https://doi.org/10.1209/0295-5075/25/5/008</a>","bibtex":"@article{Bechstedt_Schmidt_Wenzien_1994, title={Energetics and Structure of Ordered Sb Overlayers and Sb Clusters on GaAs(110) Probed by Ab Initio Calculations}, volume={25}, DOI={<a href=\"https://doi.org/10.1209/0295-5075/25/5/008\">10.1209/0295-5075/25/5/008</a>}, number={5}, journal={Europhysics Letters (EPL)}, author={Bechstedt, F and Schmidt, Wolf Gero and Wenzien, B}, year={1994}, pages={357–362} }","short":"F. Bechstedt, W.G. Schmidt, B. Wenzien, Europhysics Letters (EPL) 25 (1994) 357–362.","mla":"Bechstedt, F., et al. “Energetics and Structure of Ordered Sb Overlayers and Sb Clusters on GaAs(110) Probed by Ab Initio Calculations.” <i>Europhysics Letters (EPL)</i>, vol. 25, no. 5, 1994, pp. 357–62, doi:<a href=\"https://doi.org/10.1209/0295-5075/25/5/008\">10.1209/0295-5075/25/5/008</a>.","ama":"Bechstedt F, Schmidt WG, Wenzien B. Energetics and Structure of Ordered Sb Overlayers and Sb Clusters on GaAs(110) Probed by Ab Initio Calculations. <i>Europhysics Letters (EPL)</i>. 1994;25(5):357-362. doi:<a href=\"https://doi.org/10.1209/0295-5075/25/5/008\">10.1209/0295-5075/25/5/008</a>","ieee":"F. Bechstedt, W. G. Schmidt, and B. Wenzien, “Energetics and Structure of Ordered Sb Overlayers and Sb Clusters on GaAs(110) Probed by Ab Initio Calculations,” <i>Europhysics Letters (EPL)</i>, vol. 25, no. 5, pp. 357–362, 1994, doi: <a href=\"https://doi.org/10.1209/0295-5075/25/5/008\">10.1209/0295-5075/25/5/008</a>.","chicago":"Bechstedt, F, Wolf Gero Schmidt, and B Wenzien. “Energetics and Structure of Ordered Sb Overlayers and Sb Clusters on GaAs(110) Probed by Ab Initio Calculations.” <i>Europhysics Letters (EPL)</i> 25, no. 5 (1994): 357–62. <a href=\"https://doi.org/10.1209/0295-5075/25/5/008\">https://doi.org/10.1209/0295-5075/25/5/008</a>."},"year":"1994","issue":"5","publication_identifier":{"issn":["0295-5075","1286-4854"]},"publication_status":"published","doi":"10.1209/0295-5075/25/5/008","title":"Energetics and Structure of Ordered Sb Overlayers and Sb Clusters on GaAs(110) Probed by Ab Initio Calculations","volume":25,"author":[{"first_name":"F","full_name":"Bechstedt, F","last_name":"Bechstedt"},{"first_name":"Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero","id":"468"},{"full_name":"Wenzien, B","last_name":"Wenzien","first_name":"B"}],"date_created":"2019-10-15T10:02:53Z","date_updated":"2025-12-16T07:38:09Z"},{"year":"1994","citation":{"apa":"Schmidt, W. G., &#38; Srivastava, G. (1994). First principles calculations of interface phonons of an Epitaxial Sb monolayer on GaAs(110) and InP(110). <i>Solid State Communications</i>, <i>89</i>(4), 345–348. <a href=\"https://doi.org/10.1016/0038-1098(94)90597-5\">https://doi.org/10.1016/0038-1098(94)90597-5</a>","short":"W.G. Schmidt, G. Srivastava, Solid State Communications 89 (1994) 345–348.","bibtex":"@article{Schmidt_Srivastava_1994, title={First principles calculations of interface phonons of an Epitaxial Sb monolayer on GaAs(110) and InP(110)}, volume={89}, DOI={<a href=\"https://doi.org/10.1016/0038-1098(94)90597-5\">10.1016/0038-1098(94)90597-5</a>}, number={4}, journal={Solid State Communications}, author={Schmidt, Wolf Gero and Srivastava, GP}, year={1994}, pages={345–348} }","mla":"Schmidt, Wolf Gero, and GP Srivastava. “First Principles Calculations of Interface Phonons of an Epitaxial Sb Monolayer on GaAs(110) and InP(110).” <i>Solid State Communications</i>, vol. 89, no. 4, 1994, pp. 345–48, doi:<a href=\"https://doi.org/10.1016/0038-1098(94)90597-5\">10.1016/0038-1098(94)90597-5</a>.","ama":"Schmidt WG, Srivastava G. First principles calculations of interface phonons of an Epitaxial Sb monolayer on GaAs(110) and InP(110). <i>Solid State Communications</i>. 1994;89(4):345-348. doi:<a href=\"https://doi.org/10.1016/0038-1098(94)90597-5\">10.1016/0038-1098(94)90597-5</a>","chicago":"Schmidt, Wolf Gero, and GP Srivastava. “First Principles Calculations of Interface Phonons of an Epitaxial Sb Monolayer on GaAs(110) and InP(110).” <i>Solid State Communications</i> 89, no. 4 (1994): 345–48. <a href=\"https://doi.org/10.1016/0038-1098(94)90597-5\">https://doi.org/10.1016/0038-1098(94)90597-5</a>.","ieee":"W. G. Schmidt and G. Srivastava, “First principles calculations of interface phonons of an Epitaxial Sb monolayer on GaAs(110) and InP(110),” <i>Solid State Communications</i>, vol. 89, no. 4, pp. 345–348, 1994, doi: <a href=\"https://doi.org/10.1016/0038-1098(94)90597-5\">10.1016/0038-1098(94)90597-5</a>."},"page":"345-348","intvolume":"        89","publication_status":"published","publication_identifier":{"issn":["0038-1098"]},"issue":"4","title":"First principles calculations of interface phonons of an Epitaxial Sb monolayer on GaAs(110) and InP(110)","doi":"10.1016/0038-1098(94)90597-5","date_updated":"2025-12-16T07:37:51Z","author":[{"id":"468","full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","first_name":"Wolf Gero"},{"first_name":"GP","full_name":"Srivastava, GP","last_name":"Srivastava"}],"date_created":"2019-10-15T10:05:59Z","volume":89,"status":"public","type":"journal_article","publication":"Solid State Communications","language":[{"iso":"eng"}],"_id":"13854","user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"}]},{"date_updated":"2023-04-11T05:36:57Z","volume":47,"author":[{"orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten","first_name":"Torsten"},{"first_name":"M.","last_name":"Koch","full_name":"Koch, M."},{"last_name":"Weber","full_name":"Weber, D.","first_name":"D."},{"first_name":"J.","last_name":"Feldmann","full_name":"Feldmann, J."},{"first_name":"E.O.","full_name":"Göbel, E.O.","last_name":"Göbel"},{"full_name":"Schulze, A.","last_name":"Schulze","first_name":"A."},{"last_name":"Thomas","full_name":"Thomas, P.","first_name":"P."},{"full_name":"Schmitt-Rink, S.","last_name":"Schmitt-Rink","first_name":"S."},{"first_name":"K.","full_name":"Ploog, K.","last_name":"Ploog"}],"doi":"10.1103/PhysRevB.47.1532","main_file_link":[{"url":"https://journals.aps.org/prb/abstract/10.1103/PhysRevB.47.1532"}],"publication_status":"published","page":"1532-1539","intvolume":"        47","citation":{"ama":"Meier T, Koch M, Weber D, et al. Subpicosecond photon-echo spectroscopy on GaAs/AlAs short-period superlattices. <i>Physical Review B</i>. 1993;47(3):1532-1539. doi:<a href=\"https://doi.org/10.1103/PhysRevB.47.1532\">10.1103/PhysRevB.47.1532</a>","ieee":"T. Meier <i>et al.</i>, “Subpicosecond photon-echo spectroscopy on GaAs/AlAs short-period superlattices,” <i>Physical Review B</i>, vol. 47, no. 3, pp. 1532–1539, 1993, doi: <a href=\"https://doi.org/10.1103/PhysRevB.47.1532\">10.1103/PhysRevB.47.1532</a>.","chicago":"Meier, Torsten, M. Koch, D. Weber, J. Feldmann, E.O. Göbel, A. Schulze, P. Thomas, S. Schmitt-Rink, and K. Ploog. “Subpicosecond Photon-Echo Spectroscopy on GaAs/AlAs Short-Period Superlattices.” <i>Physical Review B</i> 47, no. 3 (1993): 1532–39. <a href=\"https://doi.org/10.1103/PhysRevB.47.1532\">https://doi.org/10.1103/PhysRevB.47.1532</a>.","apa":"Meier, T., Koch, M., Weber, D., Feldmann, J., Göbel, E. O., Schulze, A., Thomas, P., Schmitt-Rink, S., &#38; Ploog, K. (1993). Subpicosecond photon-echo spectroscopy on GaAs/AlAs short-period superlattices. <i>Physical Review B</i>, <i>47</i>(3), 1532–1539. <a href=\"https://doi.org/10.1103/PhysRevB.47.1532\">https://doi.org/10.1103/PhysRevB.47.1532</a>","mla":"Meier, Torsten, et al. “Subpicosecond Photon-Echo Spectroscopy on GaAs/AlAs Short-Period Superlattices.” <i>Physical Review B</i>, vol. 47, no. 3, American Physical Society, 1993, pp. 1532–39, doi:<a href=\"https://doi.org/10.1103/PhysRevB.47.1532\">10.1103/PhysRevB.47.1532</a>.","bibtex":"@article{Meier_Koch_Weber_Feldmann_Göbel_Schulze_Thomas_Schmitt-Rink_Ploog_1993, title={Subpicosecond photon-echo spectroscopy on GaAs/AlAs short-period superlattices}, volume={47}, DOI={<a href=\"https://doi.org/10.1103/PhysRevB.47.1532\">10.1103/PhysRevB.47.1532</a>}, number={3}, journal={Physical Review B}, publisher={American Physical Society}, author={Meier, Torsten and Koch, M. and Weber, D. and Feldmann, J. and Göbel, E.O. and Schulze, A. and Thomas, P. and Schmitt-Rink, S. and Ploog, K.}, year={1993}, pages={1532–1539} }","short":"T. Meier, M. Koch, D. Weber, J. Feldmann, E.O. Göbel, A. Schulze, P. Thomas, S. Schmitt-Rink, K. Ploog, Physical Review B 47 (1993) 1532–1539."},"_id":"43449","department":[{"_id":"293"}],"user_id":"49063","extern":"1","type":"journal_article","status":"public","publisher":"American Physical Society","date_created":"2023-04-11T05:36:54Z","title":"Subpicosecond photon-echo spectroscopy on GaAs/AlAs short-period superlattices","issue":"3","year":"1993","language":[{"iso":"eng"}],"publication":"Physical Review B","abstract":[{"lang":"eng","text":"We present subpicosecond time-resolved four-wave-mixing studies on GaAs/AlAs short-period superlattices having different miniband widths. Photon echoes are observed as a consequence of the inhomogeneous broadening of the excitonic resonance. In addition, the photon-echo signal exhibits periodic modulations as a function of the time delay between the excitation laser pulses. Free excitons and excitons bound to neutral acceptors are identified as the underlying three-level system leading to the observed photon-echo quantum beats. From the beat period we can directly infer the dissociation energy of the bound exciton. In accordance with theory, we find that the dissociation energy decreases with increasing miniband width, i.e., when the excitons become less confined. In addition, we find that the dephasing rate of bound excitons is about one order of magnitude less than that of free excitons and is mainly determined by energy relaxation."}]},{"page":"145-155","citation":{"ama":"Meier T, Göbel EO, Koch M, et al. Time resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures. In: Lookwood D, Pinczuk A, eds. <i>Optical Phenomena in Semiconductor Structures of Reduced Dimension</i>. Springer; 1993:145-155. doi:<a href=\"https://doi.org/10.1007/978-94-011-1912-2_14\">10.1007/978-94-011-1912-2_14</a>","ieee":"T. Meier <i>et al.</i>, “Time resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures,” in <i>Optical Phenomena in Semiconductor Structures of Reduced Dimension</i>, D. Lookwood and A. Pinczuk, Eds. Dordrecht: Springer, 1993, pp. 145–155.","chicago":"Meier, Torsten, E.O. Göbel, M. Koch, J. Feldmann, G. von Plessen, A. Schulze, P. Thomas, S. Schmitt-Rink, K. Köhler, and K. Ploog. “Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures.” In <i>Optical Phenomena in Semiconductor Structures of Reduced Dimension</i>, edited by D. Lookwood and A. Pinczuk, 145–55. Dordrecht: Springer, 1993. <a href=\"https://doi.org/10.1007/978-94-011-1912-2_14\">https://doi.org/10.1007/978-94-011-1912-2_14</a>.","apa":"Meier, T., Göbel, E. O., Koch, M., Feldmann, J., von Plessen, G., Schulze, A., Thomas, P., Schmitt-Rink, S., Köhler, K., &#38; Ploog, K. (1993). Time resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures. In D. Lookwood &#38; A. Pinczuk (Eds.), <i>Optical Phenomena in Semiconductor Structures of Reduced Dimension</i> (pp. 145–155). Springer. <a href=\"https://doi.org/10.1007/978-94-011-1912-2_14\">https://doi.org/10.1007/978-94-011-1912-2_14</a>","bibtex":"@inbook{Meier_Göbel_Koch_Feldmann_von Plessen_Schulze_Thomas_Schmitt-Rink_Köhler_Ploog_1993, place={Dordrecht}, title={Time resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures}, DOI={<a href=\"https://doi.org/10.1007/978-94-011-1912-2_14\">10.1007/978-94-011-1912-2_14</a>}, booktitle={Optical Phenomena in Semiconductor Structures of Reduced Dimension}, publisher={Springer}, author={Meier, Torsten and Göbel, E.O. and Koch, M. and Feldmann, J. and von Plessen, G. and Schulze, A. and Thomas, P. and Schmitt-Rink, S. and Köhler, K. and Ploog, K.}, editor={Lookwood, D. and Pinczuk, A.}, year={1993}, pages={145–155} }","mla":"Meier, Torsten, et al. “Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures.” <i>Optical Phenomena in Semiconductor Structures of Reduced Dimension</i>, edited by D. Lookwood and A. Pinczuk, Springer, 1993, pp. 145–55, doi:<a href=\"https://doi.org/10.1007/978-94-011-1912-2_14\">10.1007/978-94-011-1912-2_14</a>.","short":"T. Meier, E.O. Göbel, M. Koch, J. Feldmann, G. von Plessen, A. Schulze, P. Thomas, S. Schmitt-Rink, K. Köhler, K. Ploog, in: D. Lookwood, A. Pinczuk (Eds.), Optical Phenomena in Semiconductor Structures of Reduced Dimension, Springer, Dordrecht, 1993, pp. 145–155."},"place":"Dordrecht","publication_identifier":{"isbn":["978-94-010-4845-3"]},"publication_status":"published","doi":"10.1007/978-94-011-1912-2_14","main_file_link":[{"url":"https://link.springer.com/chapter/10.1007/978-94-011-1912-2_14"}],"author":[{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten"},{"first_name":"E.O.","last_name":"Göbel","full_name":"Göbel, E.O."},{"first_name":"M.","last_name":"Koch","full_name":"Koch, M."},{"first_name":"J.","full_name":"Feldmann, J.","last_name":"Feldmann"},{"first_name":"G.","last_name":"von Plessen","full_name":"von Plessen, G."},{"full_name":"Schulze, A.","last_name":"Schulze","first_name":"A."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."},{"first_name":"S.","full_name":"Schmitt-Rink, S.","last_name":"Schmitt-Rink"},{"last_name":"Köhler","full_name":"Köhler, K.","first_name":"K."},{"first_name":"K.","last_name":"Ploog","full_name":"Ploog, K."}],"date_updated":"2023-04-11T05:17:02Z","status":"public","editor":[{"full_name":"Lookwood, D.","last_name":"Lookwood","first_name":"D."},{"first_name":"A.","last_name":"Pinczuk","full_name":"Pinczuk, A."}],"type":"book_chapter","extern":"1","department":[{"_id":"293"}],"user_id":"49063","_id":"43442","year":"1993","title":"Time resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures","date_created":"2023-04-11T05:17:00Z","publisher":"Springer","abstract":[{"lang":"eng","text":"Femtosecond nonlinear laser spectroscopy is applied to study the dynamics of coherent optical excitations in semiconductors. In particular, beat phenomena of excitonic excitations in quantum wells and superlattice structures will be considered. We will demonstrate that four wave mixing experiments with time resolved detection of the nonlinear signal are able to distinguish between quantum beats and polarization interference. In addition, we report for a GaAs/AlAs superlattice the observation of quantum beats in the photon echo signal. The occurence of these beats is attributed to the simultaneous excitation of bound and localized excitons."}],"publication":"Optical Phenomena in Semiconductor Structures of Reduced Dimension","language":[{"iso":"eng"}]},{"type":"journal_article","status":"public","user_id":"49063","department":[{"_id":"293"}],"_id":"43448","extern":"1","publication_status":"published","citation":{"chicago":"Meier, Torsten, J. Feldmann, G. von Plessen, M. Koch, E.O. Göbel, P. Thomas, G. Bacher, et al. “Coherent Dynamics of Excitonic Wave Packets.” <i>Physical Review Letters</i> 70, no. 20 (1993): 3027–30. <a href=\"https://doi.org/10.1103/PhysRevLett.70.3027\">https://doi.org/10.1103/PhysRevLett.70.3027</a>.","ieee":"T. Meier <i>et al.</i>, “Coherent Dynamics of Excitonic Wave Packets,” <i>Physical review letters</i>, vol. 70, no. 20, pp. 3027–3030, 1993, doi: <a href=\"https://doi.org/10.1103/PhysRevLett.70.3027\">10.1103/PhysRevLett.70.3027</a>.","ama":"Meier T, Feldmann J, von Plessen G, et al. Coherent Dynamics of Excitonic Wave Packets. <i>Physical review letters</i>. 1993;70(20):3027-3030. doi:<a href=\"https://doi.org/10.1103/PhysRevLett.70.3027\">10.1103/PhysRevLett.70.3027</a>","mla":"Meier, Torsten, et al. “Coherent Dynamics of Excitonic Wave Packets.” <i>Physical Review Letters</i>, vol. 70, no. 20, American Physical Society, 1993, pp. 3027–30, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.70.3027\">10.1103/PhysRevLett.70.3027</a>.","bibtex":"@article{Meier_Feldmann_von Plessen_Koch_Göbel_Thomas_Bacher_Hartmann_Schweizer_Schäfer_et al._1993, title={Coherent Dynamics of Excitonic Wave Packets}, volume={70}, DOI={<a href=\"https://doi.org/10.1103/PhysRevLett.70.3027\">10.1103/PhysRevLett.70.3027</a>}, number={20}, journal={Physical review letters}, publisher={American Physical Society}, author={Meier, Torsten and Feldmann, J. and von Plessen, G. and Koch, M. and Göbel, E.O. and Thomas, P. and Bacher, G. and Hartmann, C. and Schweizer, H. and Schäfer, W. and et al.}, year={1993}, pages={3027–3030} }","short":"T. Meier, J. Feldmann, G. von Plessen, M. Koch, E.O. Göbel, P. Thomas, G. Bacher, C. Hartmann, H. Schweizer, W. Schäfer, H. Nickel, Physical Review Letters 70 (1993) 3027–3030.","apa":"Meier, T., Feldmann, J., von Plessen, G., Koch, M., Göbel, E. O., Thomas, P., Bacher, G., Hartmann, C., Schweizer, H., Schäfer, W., &#38; Nickel, H. (1993). Coherent Dynamics of Excitonic Wave Packets. <i>Physical Review Letters</i>, <i>70</i>(20), 3027–3030. <a href=\"https://doi.org/10.1103/PhysRevLett.70.3027\">https://doi.org/10.1103/PhysRevLett.70.3027</a>"},"intvolume":"        70","page":"3027-3030","author":[{"id":"344","full_name":"Meier, Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","first_name":"Torsten"},{"first_name":"J.","full_name":"Feldmann, J.","last_name":"Feldmann"},{"first_name":"G.","last_name":"von Plessen","full_name":"von Plessen, G."},{"full_name":"Koch, M.","last_name":"Koch","first_name":"M."},{"first_name":"E.O.","full_name":"Göbel, E.O.","last_name":"Göbel"},{"first_name":"P.","full_name":"Thomas, P.","last_name":"Thomas"},{"first_name":"G.","full_name":"Bacher, G.","last_name":"Bacher"},{"last_name":"Hartmann","full_name":"Hartmann, C.","first_name":"C."},{"full_name":"Schweizer, H.","last_name":"Schweizer","first_name":"H."},{"last_name":"Schäfer","full_name":"Schäfer, W.","first_name":"W."},{"first_name":"H.","full_name":"Nickel, H.","last_name":"Nickel"}],"volume":70,"date_updated":"2023-04-11T05:33:58Z","main_file_link":[{"url":"https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.70.3027"}],"doi":"10.1103/PhysRevLett.70.3027","publication":"Physical review letters","abstract":[{"lang":"eng","text":"We report on the coherent dynamics of excitonic wave packets observed in transient four-wave mixing experiments on strained InGaAs/GaAs quantum-well structures. The excitonic noneigenstates are created by using laser pulses shorter than the electron round trip time within the exciton orbital. A characteristic temporal modulation of the diffracted signal is observed, which resembles the coherent dynamics of an electron wave packet in a hydrogen atom expected for the case of a simultaneous excitation of all bound and the lowest continuum states."}],"language":[{"iso":"eng"}],"issue":"20","year":"1993","date_created":"2023-04-11T05:33:56Z","publisher":"American Physical Society","title":"Coherent Dynamics of Excitonic Wave Packets"},{"date_created":"2023-04-11T05:31:25Z","publisher":"American Physical Society","title":"Dipole-dipole coupling of excitons in double quantum wells","issue":"16","year":"1993","language":[{"iso":"eng"}],"publication":"Physical Review B","abstract":[{"text":"Exciton coupling is studied for double quantum wells, which are separated by thick barriers. Results are presented for the linear optical spectrum, stationary and transient luminescence as well as four-wave-mixing signals. Additionally, coherent and incoherent transport through the barrier is considered","lang":"eng"}],"volume":48,"author":[{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten"},{"first_name":"M.","full_name":"Batsch, M.","last_name":"Batsch"},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."},{"first_name":"M.","full_name":"Lindberg, M.","last_name":"Lindberg"},{"last_name":"Koch","full_name":"Koch, S.W.","first_name":"S.W."},{"full_name":"Shah, J.","last_name":"Shah","first_name":"J."}],"date_updated":"2023-04-11T05:31:28Z","doi":"10.1103/PhysRevB.48.11817","main_file_link":[{"url":"https://journals.aps.org/prb/abstract/10.1103/PhysRevB.48.11817"}],"publication_status":"published","intvolume":"        48","page":"11817-11826","citation":{"short":"T. Meier, M. Batsch, P. Thomas, M. Lindberg, S.W. Koch, J. Shah, Physical Review B 48 (1993) 11817–11826.","bibtex":"@article{Meier_Batsch_Thomas_Lindberg_Koch_Shah_1993, title={Dipole-dipole coupling of excitons in double quantum wells}, volume={48}, DOI={<a href=\"https://doi.org/10.1103/PhysRevB.48.11817\">10.1103/PhysRevB.48.11817</a>}, number={16}, journal={Physical Review B}, publisher={American Physical Society}, author={Meier, Torsten and Batsch, M. and Thomas, P. and Lindberg, M. and Koch, S.W. and Shah, J.}, year={1993}, pages={11817–11826} }","mla":"Meier, Torsten, et al. “Dipole-Dipole Coupling of Excitons in Double Quantum Wells.” <i>Physical Review B</i>, vol. 48, no. 16, American Physical Society, 1993, pp. 11817–26, doi:<a href=\"https://doi.org/10.1103/PhysRevB.48.11817\">10.1103/PhysRevB.48.11817</a>.","apa":"Meier, T., Batsch, M., Thomas, P., Lindberg, M., Koch, S. W., &#38; Shah, J. (1993). Dipole-dipole coupling of excitons in double quantum wells. <i>Physical Review B</i>, <i>48</i>(16), 11817–11826. <a href=\"https://doi.org/10.1103/PhysRevB.48.11817\">https://doi.org/10.1103/PhysRevB.48.11817</a>","chicago":"Meier, Torsten, M. Batsch, P. Thomas, M. Lindberg, S.W. Koch, and J. Shah. “Dipole-Dipole Coupling of Excitons in Double Quantum Wells.” <i>Physical Review B</i> 48, no. 16 (1993): 11817–26. <a href=\"https://doi.org/10.1103/PhysRevB.48.11817\">https://doi.org/10.1103/PhysRevB.48.11817</a>.","ieee":"T. Meier, M. Batsch, P. Thomas, M. Lindberg, S. W. Koch, and J. Shah, “Dipole-dipole coupling of excitons in double quantum wells,” <i>Physical Review B</i>, vol. 48, no. 16, pp. 11817–11826, 1993, doi: <a href=\"https://doi.org/10.1103/PhysRevB.48.11817\">10.1103/PhysRevB.48.11817</a>.","ama":"Meier T, Batsch M, Thomas P, Lindberg M, Koch SW, Shah J. Dipole-dipole coupling of excitons in double quantum wells. <i>Physical Review B</i>. 1993;48(16):11817-11826. doi:<a href=\"https://doi.org/10.1103/PhysRevB.48.11817\">10.1103/PhysRevB.48.11817</a>"},"department":[{"_id":"293"}],"user_id":"49063","_id":"43447","extern":"1","type":"journal_article","status":"public"},{"language":[{"iso":"eng"}],"extern":"1","article_number":"QMG1","user_id":"49063","department":[{"_id":"293"}],"_id":"44286","status":"public","abstract":[{"text":"In degenerate four-wave-mixing (DFWM) experiments the polarization of the incident laser pulses can have a strong influence on the measured signal. For GaAs quantum wells a number of DFWM experiments were performed by using either parallel or perpendicular polarization of the incident laser pulses. Experimentally, it turned out that some characteristic features of the signal differ appreciably for the two configurations. In particular, different dephasing times, phase shifts of the quantum beats, different time-resolved behavior (echoes versus free-induction decay), and intensity dependence of the measured signal have been reported","lang":"eng"}],"type":"conference","publication":"Quantum Electronics and Laser Science Conference","main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=qels-1993-QMG1"}],"conference":{"location":"Baltimore, Maryland United States","end_date":"1993-05-07","start_date":"1993-05-02","name":"Quantum Electronics and Laser Science Conference 1993"},"title":"Theory for polarization-dependent four-wave-mixing signals in quantum wells","date_created":"2023-05-01T11:49:56Z","author":[{"id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","first_name":"Torsten"},{"last_name":"Bennhardt","full_name":"Bennhardt, D.","first_name":"D."},{"first_name":"P.","full_name":"Thomas, P.","last_name":"Thomas"},{"last_name":"Eccleston","full_name":"Eccleston, R.","first_name":"R."},{"last_name":"Mayer","full_name":"Mayer, E.","first_name":"E."},{"first_name":"J.","last_name":"Kuhl","full_name":"Kuhl, J."}],"date_updated":"2023-05-01T11:49:59Z","citation":{"short":"T. Meier, D. Bennhardt, P. Thomas, R. Eccleston, E. Mayer, J. Kuhl, in: Quantum Electronics and Laser Science Conference, 1993.","bibtex":"@inproceedings{Meier_Bennhardt_Thomas_Eccleston_Mayer_Kuhl_1993, title={Theory for polarization-dependent four-wave-mixing signals in quantum wells}, number={QMG1}, booktitle={Quantum Electronics and Laser Science Conference}, author={Meier, Torsten and Bennhardt, D. and Thomas, P. and Eccleston, R. and Mayer, E. and Kuhl, J.}, year={1993} }","mla":"Meier, Torsten, et al. “Theory for Polarization-Dependent Four-Wave-Mixing Signals in Quantum Wells.” <i>Quantum Electronics and Laser Science Conference</i>, QMG1, 1993.","apa":"Meier, T., Bennhardt, D., Thomas, P., Eccleston, R., Mayer, E., &#38; Kuhl, J. (1993). Theory for polarization-dependent four-wave-mixing signals in quantum wells. <i>Quantum Electronics and Laser Science Conference</i>, Article QMG1. Quantum Electronics and Laser Science Conference 1993, Baltimore, Maryland United States.","chicago":"Meier, Torsten, D. Bennhardt, P. Thomas, R. Eccleston, E. Mayer, and J. Kuhl. “Theory for Polarization-Dependent Four-Wave-Mixing Signals in Quantum Wells.” In <i>Quantum Electronics and Laser Science Conference</i>, 1993.","ieee":"T. Meier, D. Bennhardt, P. Thomas, R. Eccleston, E. Mayer, and J. Kuhl, “Theory for polarization-dependent four-wave-mixing signals in quantum wells,” presented at the Quantum Electronics and Laser Science Conference 1993, Baltimore, Maryland United States, 1993.","ama":"Meier T, Bennhardt D, Thomas P, Eccleston R, Mayer E, Kuhl J. Theory for polarization-dependent four-wave-mixing signals in quantum wells. In: <i>Quantum Electronics and Laser Science Conference</i>. ; 1993."},"year":"1993","publication_status":"published","publication_identifier":{"isbn":["1-55752-302-9"]}},{"_id":"44287","department":[{"_id":"293"}],"user_id":"49063","article_number":"QMC6","extern":"1","language":[{"iso":"eng"}],"publication":"Quantum Electronics and Laser Science Conference","type":"conference","abstract":[{"text":"We investigate the coherent coupling of free and bound excitonic transitions, as wets as of distinct excitonic transitions arising from spatially separated quantum-well islands by means of time-resolved four-wave-mixing experiments.","lang":"eng"}],"status":"public","date_updated":"2023-05-01T11:53:27Z","date_created":"2023-05-01T11:53:23Z","author":[{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","full_name":"Meier, Torsten","id":"344"},{"first_name":"M.","full_name":"Koch, M.","last_name":"Koch"},{"last_name":"Feldmann","full_name":"Feldmann, J.","first_name":"J."},{"full_name":"von Plessen, G.","last_name":"von Plessen","first_name":"G."},{"first_name":"A.","last_name":"Schulze","full_name":"Schulze, A."},{"last_name":"Göbel","full_name":"Göbel, E.O.","first_name":"E.O."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."},{"last_name":"Schmitt-Rink","full_name":"Schmitt-Rink, S.","first_name":"S."},{"full_name":"Shah, J.","last_name":"Shah","first_name":"J."},{"full_name":"Ploog, K.","last_name":"Ploog","first_name":"K."},{"first_name":"K.","full_name":"Köhler, K.","last_name":"Köhler"}],"title":"Coherent coupling of exciton transitions in semiconductor quantum structures","conference":{"name":"Quantum Electronics and Laser Science Conference 1993","start_date":"1993-05-02","end_date":"1993-05-07","location":"Baltimore, Maryland United States"},"main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=QELS-1993-QMC6"}],"publication_identifier":{"isbn":["1-55752-302-9"]},"publication_status":"published","year":"1993","citation":{"ieee":"T. Meier <i>et al.</i>, “Coherent coupling of exciton transitions in semiconductor quantum structures,” presented at the Quantum Electronics and Laser Science Conference 1993, Baltimore, Maryland United States, 1993.","chicago":"Meier, Torsten, M. Koch, J. Feldmann, G. von Plessen, A. Schulze, E.O. Göbel, P. Thomas, et al. “Coherent Coupling of Exciton Transitions in Semiconductor Quantum Structures.” In <i>Quantum Electronics and Laser Science Conference</i>, 1993.","ama":"Meier T, Koch M, Feldmann J, et al. Coherent coupling of exciton transitions in semiconductor quantum structures. In: <i>Quantum Electronics and Laser Science Conference</i>. ; 1993.","bibtex":"@inproceedings{Meier_Koch_Feldmann_von Plessen_Schulze_Göbel_Thomas_Schmitt-Rink_Shah_Ploog_et al._1993, title={Coherent coupling of exciton transitions in semiconductor quantum structures}, number={QMC6}, booktitle={Quantum Electronics and Laser Science Conference}, author={Meier, Torsten and Koch, M. and Feldmann, J. and von Plessen, G. and Schulze, A. and Göbel, E.O. and Thomas, P. and Schmitt-Rink, S. and Shah, J. and Ploog, K. and et al.}, year={1993} }","short":"T. Meier, M. Koch, J. Feldmann, G. von Plessen, A. Schulze, E.O. Göbel, P. Thomas, S. Schmitt-Rink, J. Shah, K. Ploog, K. Köhler, in: Quantum Electronics and Laser Science Conference, 1993.","mla":"Meier, Torsten, et al. “Coherent Coupling of Exciton Transitions in Semiconductor Quantum Structures.” <i>Quantum Electronics and Laser Science Conference</i>, QMC6, 1993.","apa":"Meier, T., Koch, M., Feldmann, J., von Plessen, G., Schulze, A., Göbel, E. O., Thomas, P., Schmitt-Rink, S., Shah, J., Ploog, K., &#38; Köhler, K. (1993). Coherent coupling of exciton transitions in semiconductor quantum structures. <i>Quantum Electronics and Laser Science Conference</i>, Article QMC6. Quantum Electronics and Laser Science Conference 1993, Baltimore, Maryland United States."}},{"language":[{"iso":"eng"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"}],"user_id":"16199","_id":"13858","status":"public","publication":"Czechoslovak Journal of Physics","type":"journal_article","doi":"10.1007/bf01595293","title":"AB initio calculation of the atomic and electronic structure for Sb adsorbed on GaAs(110)","volume":43,"date_created":"2019-10-15T10:13:29Z","author":[{"id":"468","full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","first_name":"Wolf Gero"},{"full_name":"Wenzien, Bernd","last_name":"Wenzien","first_name":"Bernd"},{"first_name":"Friedhelm","full_name":"Bechstedt, Friedhelm","last_name":"Bechstedt"}],"date_updated":"2025-12-16T07:34:59Z","page":"1003-1007","intvolume":"        43","citation":{"ieee":"W. G. Schmidt, B. Wenzien, and F. Bechstedt, “AB initio calculation of the atomic and electronic structure for Sb adsorbed on GaAs(110),” <i>Czechoslovak Journal of Physics</i>, vol. 43, no. 9–10, pp. 1003–1007, 1993, doi: <a href=\"https://doi.org/10.1007/bf01595293\">10.1007/bf01595293</a>.","chicago":"Schmidt, Wolf Gero, Bernd Wenzien, and Friedhelm Bechstedt. “AB Initio Calculation of the Atomic and Electronic Structure for Sb Adsorbed on GaAs(110).” <i>Czechoslovak Journal of Physics</i> 43, no. 9–10 (1993): 1003–7. <a href=\"https://doi.org/10.1007/bf01595293\">https://doi.org/10.1007/bf01595293</a>.","ama":"Schmidt WG, Wenzien B, Bechstedt F. AB initio calculation of the atomic and electronic structure for Sb adsorbed on GaAs(110). <i>Czechoslovak Journal of Physics</i>. 1993;43(9-10):1003-1007. doi:<a href=\"https://doi.org/10.1007/bf01595293\">10.1007/bf01595293</a>","bibtex":"@article{Schmidt_Wenzien_Bechstedt_1993, title={AB initio calculation of the atomic and electronic structure for Sb adsorbed on GaAs(110)}, volume={43}, DOI={<a href=\"https://doi.org/10.1007/bf01595293\">10.1007/bf01595293</a>}, number={9–10}, journal={Czechoslovak Journal of Physics}, author={Schmidt, Wolf Gero and Wenzien, Bernd and Bechstedt, Friedhelm}, year={1993}, pages={1003–1007} }","mla":"Schmidt, Wolf Gero, et al. “AB Initio Calculation of the Atomic and Electronic Structure for Sb Adsorbed on GaAs(110).” <i>Czechoslovak Journal of Physics</i>, vol. 43, no. 9–10, 1993, pp. 1003–07, doi:<a href=\"https://doi.org/10.1007/bf01595293\">10.1007/bf01595293</a>.","short":"W.G. Schmidt, B. Wenzien, F. Bechstedt, Czechoslovak Journal of Physics 43 (1993) 1003–1007.","apa":"Schmidt, W. G., Wenzien, B., &#38; Bechstedt, F. (1993). AB initio calculation of the atomic and electronic structure for Sb adsorbed on GaAs(110). <i>Czechoslovak Journal of Physics</i>, <i>43</i>(9–10), 1003–1007. <a href=\"https://doi.org/10.1007/bf01595293\">https://doi.org/10.1007/bf01595293</a>"},"year":"1993","issue":"9-10","publication_identifier":{"issn":["0011-4626","1572-9486"]},"publication_status":"published"},{"author":[{"first_name":"Wolf Gero","full_name":"Schmidt, Wolf Gero","id":"468","orcid":"0000-0002-2717-5076","last_name":"Schmidt"},{"last_name":"Srivastava","full_name":"Srivastava, G P","first_name":"G P"}],"date_created":"2019-10-15T10:10:48Z","volume":5,"date_updated":"2025-12-16T07:36:55Z","doi":"10.1088/0953-8984/5/49/005","title":"Chemisorption of aluminium on GaAs(110)","issue":"49","publication_status":"published","publication_identifier":{"issn":["0953-8984","1361-648X"]},"citation":{"apa":"Schmidt, W. G., &#38; Srivastava, G. P. (1993). Chemisorption of aluminium on GaAs(110). <i>Journal of Physics: Condensed Matter</i>, <i>5</i>(49), 9025–9036. <a href=\"https://doi.org/10.1088/0953-8984/5/49/005\">https://doi.org/10.1088/0953-8984/5/49/005</a>","bibtex":"@article{Schmidt_Srivastava_1993, title={Chemisorption of aluminium on GaAs(110)}, volume={5}, DOI={<a href=\"https://doi.org/10.1088/0953-8984/5/49/005\">10.1088/0953-8984/5/49/005</a>}, number={49}, journal={Journal of Physics: Condensed Matter}, author={Schmidt, Wolf Gero and Srivastava, G P}, year={1993}, pages={9025–9036} }","mla":"Schmidt, Wolf Gero, and G. P. Srivastava. “Chemisorption of Aluminium on GaAs(110).” <i>Journal of Physics: Condensed Matter</i>, vol. 5, no. 49, 1993, pp. 9025–36, doi:<a href=\"https://doi.org/10.1088/0953-8984/5/49/005\">10.1088/0953-8984/5/49/005</a>.","short":"W.G. Schmidt, G.P. Srivastava, Journal of Physics: Condensed Matter 5 (1993) 9025–9036.","ieee":"W. G. Schmidt and G. P. Srivastava, “Chemisorption of aluminium on GaAs(110),” <i>Journal of Physics: Condensed Matter</i>, vol. 5, no. 49, pp. 9025–9036, 1993, doi: <a href=\"https://doi.org/10.1088/0953-8984/5/49/005\">10.1088/0953-8984/5/49/005</a>.","chicago":"Schmidt, Wolf Gero, and G P Srivastava. “Chemisorption of Aluminium on GaAs(110).” <i>Journal of Physics: Condensed Matter</i> 5, no. 49 (1993): 9025–36. <a href=\"https://doi.org/10.1088/0953-8984/5/49/005\">https://doi.org/10.1088/0953-8984/5/49/005</a>.","ama":"Schmidt WG, Srivastava GP. Chemisorption of aluminium on GaAs(110). <i>Journal of Physics: Condensed Matter</i>. 1993;5(49):9025-9036. doi:<a href=\"https://doi.org/10.1088/0953-8984/5/49/005\">10.1088/0953-8984/5/49/005</a>"},"intvolume":"         5","page":"9025-9036","year":"1993","user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"}],"_id":"13857","language":[{"iso":"eng"}],"type":"journal_article","publication":"Journal of Physics: Condensed Matter","status":"public"}]