--- _id: '40515' author: - first_name: H. full_name: Molsen, H. last_name: Molsen - first_name: Heinz-Siegfried full_name: Kitzerow, Heinz-Siegfried id: '254' last_name: Kitzerow - first_name: G. full_name: ' Heppke, G.' last_name: ' Heppke' citation: ama: Molsen H, Kitzerow H-S, Heppke G. Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals. SID Digest of Technical Papers. 1992;XXIII:773-775. apa: Molsen, H., Kitzerow, H.-S., & Heppke, G. (1992). Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals. SID Digest of Technical Papers, XXIII, 773–775. bibtex: '@article{Molsen_Kitzerow_ Heppke_1992, title={Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals}, volume={XXIII}, journal={SID Digest of Technical Papers}, publisher={Society for Information Display (SID)}, author={Molsen, H. and Kitzerow, Heinz-Siegfried and Heppke, G.}, year={1992}, pages={773–775} }' chicago: 'Molsen, H., Heinz-Siegfried Kitzerow, and G. Heppke. “Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals.” SID Digest of Technical Papers XXIII (1992): 773–75.' ieee: H. Molsen, H.-S. Kitzerow, and G. Heppke, “Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals,” SID Digest of Technical Papers, vol. XXIII, pp. 773–775, 1992. mla: Molsen, H., et al. “Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals.” SID Digest of Technical Papers, vol. XXIII, Society for Information Display (SID), 1992, pp. 773–75. short: H. Molsen, H.-S. Kitzerow, G. Heppke, SID Digest of Technical Papers XXIII (1992) 773–775. date_created: 2023-01-27T12:55:59Z date_updated: 2023-01-27T14:04:21Z department: - _id: '313' extern: '1' language: - iso: eng page: 773-775 publication: SID Digest of Technical Papers publisher: Society for Information Display (SID) status: public title: Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals type: journal_article user_id: '254' volume: XXIII year: '1992' ... --- _id: '40514' author: - first_name: P. P. full_name: Crooker, P. P. last_name: Crooker - first_name: Heinz-Siegfried full_name: Kitzerow, Heinz-Siegfried id: '254' last_name: Kitzerow citation: ama: Crooker PP, Kitzerow H-S. Blue Phases. Condensed Matter News. 1992;1:6-11. apa: Crooker, P. P., & Kitzerow, H.-S. (1992). Blue Phases. Condensed Matter News, 1, 6–11. bibtex: '@article{Crooker_Kitzerow_1992, title={Blue Phases}, volume={1}, journal={Condensed Matter News}, author={Crooker, P. P. and Kitzerow, Heinz-Siegfried}, year={1992}, pages={6–11} }' chicago: 'Crooker, P. P., and Heinz-Siegfried Kitzerow. “Blue Phases.” Condensed Matter News 1 (1992): 6–11.' ieee: P. P. Crooker and H.-S. Kitzerow, “Blue Phases,” Condensed Matter News, vol. 1, pp. 6–11, 1992. mla: Crooker, P. P., and Heinz-Siegfried Kitzerow. “Blue Phases.” Condensed Matter News, vol. 1, 1992, pp. 6–11. short: P.P. Crooker, H.-S. Kitzerow, Condensed Matter News 1 (1992) 6–11. date_created: 2023-01-27T12:50:38Z date_updated: 2023-01-27T14:07:24Z department: - _id: '313' extern: '1' intvolume: ' 1' language: - iso: eng page: 6-11 publication: Condensed Matter News status: public title: Blue Phases type: journal_article user_id: '254' volume: 1 year: '1992' ... --- _id: '43444' abstract: - lang: eng text: The authors present a detailed study of coherent tunneling oscillations of an optically excited electronic wavepacket in a semiconductor double quantum-well structure. The oscillation of the wavepacket between the two wells is traced by time-resolved pump-probe spectroscopy as well as time-resolved degenerate four-wave mixing. The experimental observations are compared with a simple theoretical model. The motion of the wave packet is studied as a function of both an external electric field and the lattice temperature. While the oscillation frequency shows the expected dependence on electric field, it increases with temperature at fixed electric field when perfectly delocalized electronic states exist at low temperature. author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: K. full_name: Leo, K. last_name: Leo - first_name: J. full_name: Shah, J. last_name: Shah - first_name: T.C. full_name: Damen, T.C. last_name: Damen - first_name: A. full_name: Schulze, A. last_name: Schulze - first_name: S. full_name: Schmitt-Rink, S. last_name: Schmitt-Rink - first_name: P. full_name: Thomas, P. last_name: Thomas - first_name: E.O. full_name: Göbel, E.O. last_name: Göbel - first_name: S.L. full_name: Chuang, S.L. last_name: Chuang - first_name: M.S.C. full_name: Luo, M.S.C. last_name: Luo - first_name: W. full_name: Schäfer, W. last_name: Schäfer - first_name: K. full_name: Köhler, K. last_name: Köhler - first_name: P. full_name: Ganser, P. last_name: Ganser citation: ama: Meier T, Leo K, Shah J, et al. Dissipative Dynamics of an Electronic Wavepacket in a Semiconductor Double Well Potential. IEEE journal of quantum electronics. 1992;28(10):2498-2507. doi:10.1109/3.159556 apa: Meier, T., Leo, K., Shah, J., Damen, T. C., Schulze, A., Schmitt-Rink, S., Thomas, P., Göbel, E. O., Chuang, S. L., Luo, M. S. C., Schäfer, W., Köhler, K., & Ganser, P. (1992). Dissipative Dynamics of an Electronic Wavepacket in a Semiconductor Double Well Potential. IEEE Journal of Quantum Electronics, 28(10), 2498–2507. https://doi.org/10.1109/3.159556 bibtex: '@article{Meier_Leo_Shah_Damen_Schulze_Schmitt-Rink_Thomas_Göbel_Chuang_Luo_et al._1992, title={Dissipative Dynamics of an Electronic Wavepacket in a Semiconductor Double Well Potential}, volume={28}, DOI={10.1109/3.159556}, number={10}, journal={IEEE journal of quantum electronics}, publisher={IEEE}, author={Meier, Torsten and Leo, K. and Shah, J. and Damen, T.C. and Schulze, A. and Schmitt-Rink, S. and Thomas, P. and Göbel, E.O. and Chuang, S.L. and Luo, M.S.C. and et al.}, year={1992}, pages={2498–2507} }' chicago: 'Meier, Torsten, K. Leo, J. Shah, T.C. Damen, A. Schulze, S. Schmitt-Rink, P. Thomas, et al. “Dissipative Dynamics of an Electronic Wavepacket in a Semiconductor Double Well Potential.” IEEE Journal of Quantum Electronics 28, no. 10 (1992): 2498–2507. https://doi.org/10.1109/3.159556.' ieee: 'T. Meier et al., “Dissipative Dynamics of an Electronic Wavepacket in a Semiconductor Double Well Potential,” IEEE journal of quantum electronics, vol. 28, no. 10, pp. 2498–2507, 1992, doi: 10.1109/3.159556.' mla: Meier, Torsten, et al. “Dissipative Dynamics of an Electronic Wavepacket in a Semiconductor Double Well Potential.” IEEE Journal of Quantum Electronics, vol. 28, no. 10, IEEE, 1992, pp. 2498–507, doi:10.1109/3.159556. short: T. Meier, K. Leo, J. Shah, T.C. Damen, A. Schulze, S. Schmitt-Rink, P. Thomas, E.O. Göbel, S.L. Chuang, M.S.C. Luo, W. Schäfer, K. Köhler, P. Ganser, IEEE Journal of Quantum Electronics 28 (1992) 2498–2507. date_created: 2023-04-11T05:25:02Z date_updated: 2023-04-11T05:25:04Z department: - _id: '293' doi: 10.1109/3.159556 extern: '1' intvolume: ' 28' issue: '10' language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/abstract/document/159556 page: 2498-2507 publication: IEEE journal of quantum electronics publication_identifier: eissn: - 1558-1713 issn: - 0018-9197 publication_status: published publisher: IEEE status: public title: Dissipative Dynamics of an Electronic Wavepacket in a Semiconductor Double Well Potential type: journal_article user_id: '49063' volume: 28 year: '1992' ... --- _id: '43443' abstract: - lang: eng text: We report the study of optical dephazing of Wannier-Stark ladder excitations in a semiconductor superlattice by means of transient degenerate four-wave mixing. We observe pronounced modulations of the signal with a time period varying linearly with the electric field. The time period is found to equal the temporal periodicity of Bloch oscillations, in agreement with theory. In addition, we find that the dephazing time decreases with increasing localization of the Wannier-Stark states, which is attributed to carrier escape out of the lowest miniband. author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: J. full_name: Feldmann, J. last_name: Feldmann - first_name: K. full_name: Leo, K. last_name: Leo - first_name: J. full_name: Shah, J. last_name: Shah - first_name: D.A.B. full_name: Miller, D.A.B. last_name: Miller - first_name: J.E. full_name: Cunningham, J.E. last_name: Cunningham - first_name: G. full_name: von Plessen, G. last_name: von Plessen - first_name: A. full_name: Schulze, A. last_name: Schulze - first_name: P. full_name: Thomas, P. last_name: Thomas - first_name: S. full_name: Schmitt-Rink, S. last_name: Schmitt-Rink citation: ama: Meier T, Feldmann J, Leo K, et al. Optical investigation of Bloch oscillations in a semiconductor superlattice. Physical Review B. 1992;46(11):7252-7255. doi:10.1103/PhysRevB.46.7252 apa: Meier, T., Feldmann, J., Leo, K., Shah, J., Miller, D. A. B., Cunningham, J. E., von Plessen, G., Schulze, A., Thomas, P., & Schmitt-Rink, S. (1992). Optical investigation of Bloch oscillations in a semiconductor superlattice. Physical Review B, 46(11), 7252–7255. https://doi.org/10.1103/PhysRevB.46.7252 bibtex: '@article{Meier_Feldmann_Leo_Shah_Miller_Cunningham_von Plessen_Schulze_Thomas_Schmitt-Rink_1992, title={Optical investigation of Bloch oscillations in a semiconductor superlattice}, volume={46}, DOI={10.1103/PhysRevB.46.7252}, number={11}, journal={Physical Review B}, publisher={American Physical Society}, author={Meier, Torsten and Feldmann, J. and Leo, K. and Shah, J. and Miller, D.A.B. and Cunningham, J.E. and von Plessen, G. and Schulze, A. and Thomas, P. and Schmitt-Rink, S.}, year={1992}, pages={7252–7255} }' chicago: 'Meier, Torsten, J. Feldmann, K. Leo, J. Shah, D.A.B. Miller, J.E. Cunningham, G. von Plessen, A. Schulze, P. Thomas, and S. Schmitt-Rink. “Optical Investigation of Bloch Oscillations in a Semiconductor Superlattice.” Physical Review B 46, no. 11 (1992): 7252–55. https://doi.org/10.1103/PhysRevB.46.7252.' ieee: 'T. Meier et al., “Optical investigation of Bloch oscillations in a semiconductor superlattice,” Physical Review B, vol. 46, no. 11, pp. 7252–7255, 1992, doi: 10.1103/PhysRevB.46.7252.' mla: Meier, Torsten, et al. “Optical Investigation of Bloch Oscillations in a Semiconductor Superlattice.” Physical Review B, vol. 46, no. 11, American Physical Society, 1992, pp. 7252–55, doi:10.1103/PhysRevB.46.7252. short: T. Meier, J. Feldmann, K. Leo, J. Shah, D.A.B. Miller, J.E. Cunningham, G. von Plessen, A. Schulze, P. Thomas, S. Schmitt-Rink, Physical Review B 46 (1992) 7252–7255. date_created: 2023-04-11T05:20:39Z date_updated: 2023-04-11T05:20:42Z department: - _id: '293' doi: 10.1103/PhysRevB.46.7252 extern: '1' intvolume: ' 46' issue: '11' language: - iso: eng main_file_link: - url: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.46.7252 page: 7252-7255 publication: Physical Review B publication_status: published publisher: American Physical Society status: public title: Optical investigation of Bloch oscillations in a semiconductor superlattice type: journal_article user_id: '49063' volume: 46 year: '1992' ... --- _id: '43445' abstract: - lang: eng text: Femtosecond nonlinear laser spectroscopy is applied to study the dynamics of coherent optical excitations in semiconductors. In particular, excitonic excitations in quantum wells and superlattice structures are considered. Two examples demonstrate that four-wave mixing experiments with time-resolved detection of the nonlinear signal are able to distinguish between quantum beats and polarization interference.v author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: E.O. full_name: Göbel, E.O. last_name: Göbel - first_name: M. full_name: Koch, M. last_name: Koch - first_name: J. full_name: Feldmann, J. last_name: Feldmann - first_name: G. full_name: von Plessen, G. last_name: von Plessen - first_name: A. full_name: Schulze, A. last_name: Schulze - first_name: P. full_name: Thomas, P. last_name: Thomas - first_name: S. full_name: Schmitt-Rink, S. last_name: Schmitt-Rink - first_name: K. full_name: Köhler, K. last_name: Köhler - first_name: K. full_name: Ploog, K. last_name: Ploog citation: ama: Meier T, Göbel EO, Koch M, et al. Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures. physica status solidi (b). 1992;173(1):21-30. doi:10.1002/pssb.2221730103 apa: Meier, T., Göbel, E. O., Koch, M., Feldmann, J., von Plessen, G., Schulze, A., Thomas, P., Schmitt-Rink, S., Köhler, K., & Ploog, K. (1992). Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures. Physica Status Solidi (b), 173(1), 21–30. https://doi.org/10.1002/pssb.2221730103 bibtex: '@article{Meier_Göbel_Koch_Feldmann_von Plessen_Schulze_Thomas_Schmitt-Rink_Köhler_Ploog_1992, title={Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures}, volume={173}, DOI={10.1002/pssb.2221730103}, number={1}, journal={physica status solidi (b)}, 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.}, year={1992}, pages={21–30} }' 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.” Physica Status Solidi (b) 173, no. 1 (1992): 21–30. https://doi.org/10.1002/pssb.2221730103.' ieee: 'T. Meier et al., “Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures,” physica status solidi (b), vol. 173, no. 1, pp. 21–30, 1992, doi: 10.1002/pssb.2221730103.' mla: Meier, Torsten, et al. “Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures.” Physica Status Solidi (b), vol. 173, no. 1, 1992, pp. 21–30, doi:10.1002/pssb.2221730103. short: T. Meier, E.O. Göbel, M. Koch, J. Feldmann, G. von Plessen, A. Schulze, P. Thomas, S. Schmitt-Rink, K. Köhler, K. Ploog, Physica Status Solidi (b) 173 (1992) 21–30. date_created: 2023-04-11T05:28:59Z date_updated: 2023-04-11T05:29:05Z department: - _id: '293' doi: 10.1002/pssb.2221730103 extern: '1' intvolume: ' 173' issue: '1' language: - iso: eng main_file_link: - url: https://onlinelibrary.wiley.com/doi/10.1002/pssb.2221730103 page: 21-30 publication: physica status solidi (b) publication_status: published status: public title: Time Resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures type: journal_article user_id: '49063' volume: 173 year: '1992' ... --- _id: '39917' author: - first_name: Ulrich full_name: Hilleringmann, Ulrich id: '20179' last_name: Hilleringmann - first_name: S full_name: Adams, S last_name: Adams - first_name: K full_name: Goser, K last_name: Goser citation: ama: 'Hilleringmann U, Adams S, Goser K. A Silicon Technology for Monolithic Integration of Optical Waveguides, Photodetectors and VLSI CMOS Circuits. In: Proceedings ISSSE’92. ; 1992:304–307.' apa: Hilleringmann, U., Adams, S., & Goser, K. (1992). A Silicon Technology for Monolithic Integration of Optical Waveguides, Photodetectors and VLSI CMOS Circuits. Proceedings ISSSE’92, 304–307. bibtex: '@inproceedings{Hilleringmann_Adams_Goser_1992, title={A Silicon Technology for Monolithic Integration of Optical Waveguides, Photodetectors and VLSI CMOS Circuits}, booktitle={Proceedings ISSSE’92}, author={Hilleringmann, Ulrich and Adams, S and Goser, K}, year={1992}, pages={304–307} }' chicago: Hilleringmann, Ulrich, S Adams, and K Goser. “A Silicon Technology for Monolithic Integration of Optical Waveguides, Photodetectors and VLSI CMOS Circuits.” In Proceedings ISSSE’92, 304–307, 1992. ieee: U. Hilleringmann, S. Adams, and K. Goser, “A Silicon Technology for Monolithic Integration of Optical Waveguides, Photodetectors and VLSI CMOS Circuits,” in Proceedings ISSSE’92, 1992, pp. 304–307. mla: Hilleringmann, Ulrich, et al. “A Silicon Technology for Monolithic Integration of Optical Waveguides, Photodetectors and VLSI CMOS Circuits.” Proceedings ISSSE’92, 1992, pp. 304–307. short: 'U. Hilleringmann, S. Adams, K. Goser, in: Proceedings ISSSE’92, 1992, pp. 304–307.' date_created: 2023-01-25T09:28:41Z date_updated: 2023-03-21T09:48:37Z department: - _id: '59' language: - iso: eng page: 304–307 publication: Proceedings ISSSE’92 status: public title: A Silicon Technology for Monolithic Integration of Optical Waveguides, Photodetectors and VLSI CMOS Circuits type: conference user_id: '20179' year: '1992' ... --- _id: '39918' author: - first_name: S full_name: Adams, S last_name: Adams - first_name: Ulrich full_name: Hilleringmann, Ulrich id: '20179' last_name: Hilleringmann - first_name: K full_name: Goser, K last_name: Goser citation: ama: 'Adams S, Hilleringmann U, Goser K. Electrooptical coupling of waveguides and VLSI circuits integrated on one silicon chip. In: EFOC LAN. ; 1992:92–92.' apa: Adams, S., Hilleringmann, U., & Goser, K. (1992). Electrooptical coupling of waveguides and VLSI circuits integrated on one silicon chip. EFOC LAN, 92–92. bibtex: '@inproceedings{Adams_Hilleringmann_Goser_1992, title={Electrooptical coupling of waveguides and VLSI circuits integrated on one silicon chip}, booktitle={EFOC LAN}, author={Adams, S and Hilleringmann, Ulrich and Goser, K}, year={1992}, pages={92–92} }' chicago: Adams, S, Ulrich Hilleringmann, and K Goser. “Electrooptical Coupling of Waveguides and VLSI Circuits Integrated on One Silicon Chip.” In EFOC LAN, 92–92, 1992. ieee: S. Adams, U. Hilleringmann, and K. Goser, “Electrooptical coupling of waveguides and VLSI circuits integrated on one silicon chip,” in EFOC LAN, 1992, pp. 92–92. mla: Adams, S., et al. “Electrooptical Coupling of Waveguides and VLSI Circuits Integrated on One Silicon Chip.” EFOC LAN, 1992, pp. 92–92. short: 'S. Adams, U. Hilleringmann, K. Goser, in: EFOC LAN, 1992, pp. 92–92.' date_created: 2023-01-25T09:29:06Z date_updated: 2023-03-21T09:48:21Z department: - _id: '59' language: - iso: eng page: 92–92 publication: EFOC LAN status: public title: Electrooptical coupling of waveguides and VLSI circuits integrated on one silicon chip type: conference user_id: '20179' year: '1992' ... --- _id: '43483' author: - first_name: Harald full_name: Schroeter-Wittke, Harald id: '480' last_name: Schroeter-Wittke citation: ama: 'Schroeter-Wittke H. Michel plays Petrucciani. Oder: “So wenig sind wir auf uns selbst gestellt.” Oder: Praktisch-theologische Wahr-Nehmungen in dem “Spielraum von Schnitten.” Der Evangelische Erzieher. 1992;44:426-431.' apa: 'Schroeter-Wittke, H. (1992). Michel plays Petrucciani. Oder: “So wenig sind wir auf uns selbst gestellt.” Oder: Praktisch-theologische Wahr-Nehmungen in dem “Spielraum von Schnitten.” Der Evangelische Erzieher, 44, 426–431.' bibtex: '@article{Schroeter-Wittke_1992, title={Michel plays Petrucciani. Oder: “So wenig sind wir auf uns selbst gestellt.” Oder: Praktisch-theologische Wahr-Nehmungen in dem “Spielraum von Schnitten”}, volume={44}, journal={Der Evangelische Erzieher}, author={Schroeter-Wittke, Harald}, year={1992}, pages={426–431} }' chicago: 'Schroeter-Wittke, Harald. “Michel Plays Petrucciani. Oder: ‘So Wenig Sind Wir Auf Uns Selbst Gestellt.’ Oder: Praktisch-Theologische Wahr-Nehmungen in Dem ‘Spielraum von Schnitten.’” Der Evangelische Erzieher 44 (1992): 426–31.' ieee: 'H. Schroeter-Wittke, “Michel plays Petrucciani. Oder: ‘So wenig sind wir auf uns selbst gestellt.’ Oder: Praktisch-theologische Wahr-Nehmungen in dem ‘Spielraum von Schnitten,’” Der Evangelische Erzieher, vol. 44, pp. 426–431, 1992.' mla: 'Schroeter-Wittke, Harald. “Michel Plays Petrucciani. Oder: ‘So Wenig Sind Wir Auf Uns Selbst Gestellt.’ Oder: Praktisch-Theologische Wahr-Nehmungen in Dem ‘Spielraum von Schnitten.’” Der Evangelische Erzieher, vol. 44, 1992, pp. 426–31.' short: H. Schroeter-Wittke, Der Evangelische Erzieher 44 (1992) 426–431. date_created: 2023-04-14T00:30:35Z date_updated: 2023-04-14T21:04:28Z intvolume: ' 44' language: - iso: eng page: 426-431 publication: Der Evangelische Erzieher status: public title: 'Michel plays Petrucciani. Oder: "So wenig sind wir auf uns selbst gestellt." Oder: Praktisch-theologische Wahr-Nehmungen in dem "Spielraum von Schnitten"' type: journal_article user_id: '480' volume: 44 year: '1992' ... --- _id: '44291' abstract: - lang: eng text: Summary form only given. The numerical investigations are based on a microscopic many-body theory which allows one to compute the linear and nonlinear optical properties of semiconductor superlattices in the presence of homogeneous electric fields applied in the growth direction. The THz-emission due to the field-driven dynamics of photoexcited carriers is investigated for the combined action of static and alternating fields. For a driving field it was shown within a simple model that the equations governing the intraband dynamics in the field-driven superlattice should be analogous to the ones describing the superconducting Josephson junction. The transport properties in this regime can be described by the picture of multi-photon-assisted tunneling between Wannier-Stark states. author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: P. full_name: Thomas, P. last_name: Thomas - first_name: S.W. full_name: Koch, S.W. last_name: Koch citation: ama: 'Meier T, Thomas P, Koch SW. THz-emission from photoexcited semiconductor superlattices with applied ac and dc electric fields. In: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference. IEEE; 1992:218-219. doi:10.1109/QELS.1999.807564' apa: Meier, T., Thomas, P., & Koch, S. W. (1992). THz-emission from photoexcited semiconductor superlattices with applied ac and dc electric fields. Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 218–219. https://doi.org/10.1109/QELS.1999.807564 bibtex: '@inproceedings{Meier_Thomas_Koch_1992, title={THz-emission from photoexcited semiconductor superlattices with applied ac and dc electric fields}, DOI={10.1109/QELS.1999.807564}, booktitle={Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference}, publisher={IEEE}, author={Meier, Torsten and Thomas, P. and Koch, S.W.}, year={1992}, pages={218–219} }' chicago: Meier, Torsten, P. Thomas, and S.W. Koch. “THz-Emission from Photoexcited Semiconductor Superlattices with Applied Ac and Dc Electric Fields.” In Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 218–19. IEEE, 1992. https://doi.org/10.1109/QELS.1999.807564. ieee: 'T. Meier, P. Thomas, and S. W. Koch, “THz-emission from photoexcited semiconductor superlattices with applied ac and dc electric fields,” in Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, Baltimore, MD, USA, 1992, pp. 218–219, doi: 10.1109/QELS.1999.807564.' mla: Meier, Torsten, et al. “THz-Emission from Photoexcited Semiconductor Superlattices with Applied Ac and Dc Electric Fields.” Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, IEEE, 1992, pp. 218–19, doi:10.1109/QELS.1999.807564. short: 'T. Meier, P. Thomas, S.W. Koch, in: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, IEEE, 1992, pp. 218–219.' conference: end_date: 1992-05-28 location: Baltimore, MD, USA name: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference start_date: 1992-05-23 date_created: 2023-05-01T12:08:32Z date_updated: 2023-05-01T12:11:33Z department: - _id: '293' doi: 10.1109/QELS.1999.807564 extern: '1' language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/abstract/document/807564 page: 218-219 publication: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference publication_identifier: isbn: - 1-55752-576-X publication_status: published publisher: IEEE status: public title: THz-emission from photoexcited semiconductor superlattices with applied ac and dc electric fields type: conference user_id: '49063' year: '1992' ... --- _id: '44292' abstract: - lang: eng text: Summary form only given. Partly non-degenerate four-wave mixing is able to detect coherent coupling between excitonic resonances like e.g. light-hole and heavy-hole excitons or between an exciton and its continuum states. We apply an extension of this method, which we call selective coherent spectroscopy (SCS), to symmetrically strained (GaIn)As/Ga(PAs) multiple quantum-wells. The samples are excited simultaneously by a picosecond pulse with wavevector k/sub 1/ and a 100 fs pulse with wavevector k/sub 2/. The central wavelength of the picosecond pulse is scanned over the entire spectrum of the 100 fs pulse and the four-wave mixing signal in the direction 2k/sub 2/-k/sub 1/ is detected at a fixed energy. This scan provides an SCS spectrum. author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: A. full_name: Euteneuer, A. last_name: Euteneuer - first_name: E. full_name: Finger, E. last_name: Finger - first_name: M. full_name: Hofmann, M. last_name: Hofmann - first_name: W. full_name: Stolz, W. last_name: Stolz - first_name: P. full_name: Thomas, P. last_name: Thomas - first_name: S.W. full_name: Koch, S.W. last_name: Koch - first_name: W.W. full_name: Ruhle, W.W. last_name: Ruhle citation: ama: 'Meier T, Euteneuer A, Finger E, et al. Distribution of exciton binding-energies in disordered semiconductor quantum-wells. In: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference. IEEE; 1992:204. doi:10.1109/QELS.1999.807538' apa: Meier, T., Euteneuer, A., Finger, E., Hofmann, M., Stolz, W., Thomas, P., Koch, S. W., & Ruhle, W. W. (1992). Distribution of exciton binding-energies in disordered semiconductor quantum-wells. Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 204. https://doi.org/10.1109/QELS.1999.807538 bibtex: '@inproceedings{Meier_Euteneuer_Finger_Hofmann_Stolz_Thomas_Koch_Ruhle_1992, title={Distribution of exciton binding-energies in disordered semiconductor quantum-wells}, DOI={10.1109/QELS.1999.807538}, booktitle={Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference}, publisher={IEEE}, author={Meier, Torsten and Euteneuer, A. and Finger, E. and Hofmann, M. and Stolz, W. and Thomas, P. and Koch, S.W. and Ruhle, W.W.}, year={1992}, pages={204} }' chicago: Meier, Torsten, A. Euteneuer, E. Finger, M. Hofmann, W. Stolz, P. Thomas, S.W. Koch, and W.W. Ruhle. “Distribution of Exciton Binding-Energies in Disordered Semiconductor Quantum-Wells.” In Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 204. IEEE, 1992. https://doi.org/10.1109/QELS.1999.807538. ieee: 'T. Meier et al., “Distribution of exciton binding-energies in disordered semiconductor quantum-wells,” in Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, Baltimore, MD, USA, 1992, p. 204, doi: 10.1109/QELS.1999.807538.' mla: Meier, Torsten, et al. “Distribution of Exciton Binding-Energies in Disordered Semiconductor Quantum-Wells.” Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, IEEE, 1992, p. 204, doi:10.1109/QELS.1999.807538. short: 'T. Meier, A. Euteneuer, E. Finger, M. Hofmann, W. Stolz, P. Thomas, S.W. Koch, W.W. Ruhle, in: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, IEEE, 1992, p. 204.' conference: end_date: 1992-05-28 location: Baltimore, MD, USA name: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference start_date: 1992-05-23 date_created: 2023-05-01T12:11:26Z date_updated: 2023-05-01T12:11:30Z department: - _id: '293' doi: 10.1109/QELS.1999.807538 extern: '1' language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/abstract/document/807538 page: '204' publication: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference publication_status: published publisher: IEEE status: public title: Distribution of exciton binding-energies in disordered semiconductor quantum-wells type: conference user_id: '49063' year: '1992' ... --- _id: '44290' abstract: - lang: eng text: Summary form only given. For a proper understanding of nonlinear optical experiments in semiconductors even the low-density limit Coulomb-induced many body correlations beyond the Hartree-Fock decoupling scheme need to be considered. In the coherent X(3) limit these correlations manifest themselves in the contributions of bound and unbound two-exciton states to the optical response. The understanding of nonlinear excitonic effects in the Stark effect of semiconductors including carrier-correlations is still of fundamental interest. author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: C. full_name: Sieh, C. last_name: Sieh - first_name: S.W. full_name: Koch, S.W. last_name: Koch - first_name: P. full_name: Brick, P. last_name: Brick - first_name: M. full_name: Hubner, M. last_name: Hubner - first_name: C. full_name: Ell, C. last_name: Ell - first_name: J. full_name: Prineas, J. last_name: Prineas - first_name: G. full_name: Khitrova, G. last_name: Khitrova - first_name: H.M. full_name: Gibbs, H.M. last_name: Gibbs citation: ama: 'Meier T, Sieh C, Koch SW, et al. Influence of carrier-correlations on the optical Stark effect of semiconductors. In: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference. IEEE; 1992:14-15. doi:10.1109/QELS.1999.807099' apa: Meier, T., Sieh, C., Koch, S. W., Brick, P., Hubner, M., Ell, C., Prineas, J., Khitrova, G., & Gibbs, H. M. (1992). Influence of carrier-correlations on the optical Stark effect of semiconductors. Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 14–15. https://doi.org/10.1109/QELS.1999.807099 bibtex: '@inproceedings{Meier_Sieh_Koch_Brick_Hubner_Ell_Prineas_Khitrova_Gibbs_1992, title={Influence of carrier-correlations on the optical Stark effect of semiconductors}, DOI={10.1109/QELS.1999.807099}, booktitle={Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference}, publisher={IEEE}, author={Meier, Torsten and Sieh, C. and Koch, S.W. and Brick, P. and Hubner, M. and Ell, C. and Prineas, J. and Khitrova, G. and Gibbs, H.M.}, year={1992}, pages={14–15} }' chicago: Meier, Torsten, C. Sieh, S.W. Koch, P. Brick, M. Hubner, C. Ell, J. Prineas, G. Khitrova, and H.M. Gibbs. “Influence of Carrier-Correlations on the Optical Stark Effect of Semiconductors.” In Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 14–15. IEEE, 1992. https://doi.org/10.1109/QELS.1999.807099. ieee: 'T. Meier et al., “Influence of carrier-correlations on the optical Stark effect of semiconductors,” in Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, Baltimore, MD, USA, 1992, pp. 14–15, doi: 10.1109/QELS.1999.807099.' mla: Meier, Torsten, et al. “Influence of Carrier-Correlations on the Optical Stark Effect of Semiconductors.” Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, IEEE, 1992, pp. 14–15, doi:10.1109/QELS.1999.807099. short: 'T. Meier, C. Sieh, S.W. Koch, P. Brick, M. Hubner, C. Ell, J. Prineas, G. Khitrova, H.M. Gibbs, in: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, IEEE, 1992, pp. 14–15.' conference: end_date: 1992-05-28 location: Baltimore, MD, USA name: ' Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference' start_date: 1992-05-23 date_created: 2023-05-01T12:05:51Z date_updated: 2023-05-01T12:05:55Z department: - _id: '293' doi: 10.1109/QELS.1999.807099 extern: '1' language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/abstract/document/807099 page: 14-15 publication: Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference publication_identifier: isbn: - 1-55752-576-X publication_status: published publisher: IEEE status: public title: Influence of carrier-correlations on the optical Stark effect of semiconductors type: conference user_id: '49063' year: '1992' ... --- _id: '44289' abstract: - lang: eng text: 'Recent experiments by Roskos et al. in ultrashort optical pulse excitation of biased coupled quantum wells have shown remarkable generation of terahertz electromagnetic radiation. Two different effects were identified: (i) an oscillatory field of frequency corresponding to the separation between the coupled levels in the quantum-well pair (~ 1.5 THz); and (ii) an “instantaneous” electromagnetic field pulse that appears to follow the time evolution of the exciting laser pulse. The oscillatory field is understood to be caused by the coherent oscillation of optically created electrons from one well to the other.[1] The “instantaneous” part we believe is caused by a new mechanism proposed in Ref. 2. The essence of this “instantaneous” mechanism is that electron-hole pairs are created in a biased semiconductor with a net polarization. The density of these pairs follows the light field, as does the induced polarization, hence, generating an electromagnetic source that follows the light pulse. Such mechanisms have been discussed before for photon energies below the optical bandgap energy,[3] although they have so far been difficult to observe. In our work, we have generalized and extended such effects to photon energies above the handgap energy. In this paper we will discuss both of these mechanisms as well as the fourwave-mixing (FWM) signal,[4] and show how they can be understood within one unified formalism. We will also show that the calculations agree well with the experimental results.' article_number: MoP3 author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: A. full_name: Schulze, A. last_name: Schulze - first_name: S. full_name: Scmittrink, S. last_name: Scmittrink - first_name: P. full_name: Thomas, P. last_name: Thomas - first_name: S.L. full_name: Chuang, S.L. last_name: Chuang citation: ama: 'Meier T, Schulze A, Scmittrink S, Thomas P, Chuang SL. Terahertz Electromagnetic Pulse Generation and Four-Wave Mixing in Coupled Quantum Wells. In: International Quantum Electronics Conference. ; 1992.' apa: Meier, T., Schulze, A., Scmittrink, S., Thomas, P., & Chuang, S. L. (1992). Terahertz Electromagnetic Pulse Generation and Four-Wave Mixing in Coupled Quantum Wells. International Quantum Electronics Conference, Article MoP3. International Quantum Electronics Conference 1992, Vienna, Austria. bibtex: '@inproceedings{Meier_Schulze_Scmittrink_Thomas_Chuang_1992, title={Terahertz Electromagnetic Pulse Generation and Four-Wave Mixing in Coupled Quantum Wells}, number={MoP3}, booktitle={International Quantum Electronics Conference}, author={Meier, Torsten and Schulze, A. and Scmittrink, S. and Thomas, P. and Chuang, S.L.}, year={1992} }' chicago: Meier, Torsten, A. Schulze, S. Scmittrink, P. Thomas, and S.L. Chuang. “Terahertz Electromagnetic Pulse Generation and Four-Wave Mixing in Coupled Quantum Wells.” In International Quantum Electronics Conference, 1992. ieee: T. Meier, A. Schulze, S. Scmittrink, P. Thomas, and S. L. Chuang, “Terahertz Electromagnetic Pulse Generation and Four-Wave Mixing in Coupled Quantum Wells,” presented at the International Quantum Electronics Conference 1992, Vienna, Austria, 1992. mla: Meier, Torsten, et al. “Terahertz Electromagnetic Pulse Generation and Four-Wave Mixing in Coupled Quantum Wells.” International Quantum Electronics Conference, MoP3, 1992. short: 'T. Meier, A. Schulze, S. Scmittrink, P. Thomas, S.L. Chuang, in: International Quantum Electronics Conference, 1992.' conference: end_date: 1992-06-19 location: Vienna, Austria name: International Quantum Electronics Conference 1992 start_date: 1992-06-14 date_created: 2023-05-01T12:01:53Z date_updated: 2023-05-01T12:01:56Z department: - _id: '293' extern: '1' language: - iso: eng main_file_link: - url: https://opg.optica.org/abstract.cfm?uri=IQEC-1992-MoP3 publication: International Quantum Electronics Conference publication_status: published status: public title: Terahertz Electromagnetic Pulse Generation and Four-Wave Mixing in Coupled Quantum Wells type: conference user_id: '49063' year: '1992' ... --- _id: '44288' abstract: - lang: eng text: "In the presence of a homogeneous electric field, \U0001D439→, each Bloch state in a crystal changes quasimomentum according to the so-called acceleration theorem Thus, in the absence of interband tunneling and scattering processes, each Bloch state moves at a constant velocity in k-space and executes a periodic motion in the reduced zone scheme by undergoing a Bragg reflection between each two traversals of the Brillouin zone." article_number: MoC2 author: - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: G. full_name: von Plessen, G. last_name: von Plessen - first_name: A. full_name: Schulze, A. last_name: Schulze - first_name: P. full_name: Thomas, P. last_name: Thomas citation: ama: 'Meier T, von Plessen G, Schulze A, Thomas P. On the Observability of Bloch Oscillations in Time-Resolved Four-Wave-Mixing. In: International Quantum Electronics Conference. ; 1992.' apa: Meier, T., von Plessen, G., Schulze, A., & Thomas, P. (1992). On the Observability of Bloch Oscillations in Time-Resolved Four-Wave-Mixing. International Quantum Electronics Conference, Article MoC2. International Quantum Electronics Conference 1992, Vienna, Austria. bibtex: '@inproceedings{Meier_von Plessen_Schulze_Thomas_1992, title={On the Observability of Bloch Oscillations in Time-Resolved Four-Wave-Mixing}, number={MoC2}, booktitle={International Quantum Electronics Conference}, author={Meier, Torsten and von Plessen, G. and Schulze, A. and Thomas, P.}, year={1992} }' chicago: Meier, Torsten, G. von Plessen, A. Schulze, and P. Thomas. “On the Observability of Bloch Oscillations in Time-Resolved Four-Wave-Mixing.” In International Quantum Electronics Conference, 1992. ieee: T. Meier, G. von Plessen, A. Schulze, and P. Thomas, “On the Observability of Bloch Oscillations in Time-Resolved Four-Wave-Mixing,” presented at the International Quantum Electronics Conference 1992, Vienna, Austria, 1992. mla: Meier, Torsten, et al. “On the Observability of Bloch Oscillations in Time-Resolved Four-Wave-Mixing.” International Quantum Electronics Conference, MoC2, 1992. short: 'T. Meier, G. von Plessen, A. Schulze, P. Thomas, in: International Quantum Electronics Conference, 1992.' conference: end_date: 1992-06-19 location: Vienna, Austria name: International Quantum Electronics Conference 1992 start_date: 1992-06-14 date_created: 2023-05-01T11:59:04Z date_updated: 2023-05-01T11:59:08Z department: - _id: '293' extern: '1' language: - iso: eng main_file_link: - url: https://opg.optica.org/abstract.cfm?uri=IQEC-1992-MoC2 publication: International Quantum Electronics Conference publication_status: published status: public title: On the Observability of Bloch Oscillations in Time-Resolved Four-Wave-Mixing type: conference user_id: '49063' year: '1992' ... --- _id: '45259' author: - first_name: Bardo full_name: Herzig, Bardo id: '217' last_name: Herzig citation: ama: Herzig B. Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik. Universität Paderborn; 1992. apa: Herzig, B. (1992). Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik. Universität Paderborn. bibtex: '@book{Herzig_1992, title={Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik}, publisher={Universität Paderborn}, author={Herzig, Bardo}, year={1992} }' chicago: Herzig, Bardo. Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik. Universität Paderborn, 1992. ieee: B. Herzig, Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik. Universität Paderborn, 1992. mla: Herzig, Bardo. Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik. Universität Paderborn, 1992. short: B. Herzig, Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik, Universität Paderborn, 1992. date_created: 2023-05-24T10:23:45Z date_updated: 2023-05-24T10:23:54Z department: - _id: '459' extern: '1' language: - iso: ger publisher: Universität Paderborn status: public title: Entwurf einer Benutzeroberfläche für die Analyse von kontextfreien und DCG - Grammatiken und ihre didaktische Verwendung. Erste Staatsarbeit im Fach Informatik type: misc user_id: '21240' year: '1992' ...