TY - GEN AU - Peckhaus, Volker ID - 17761 T2 - History and Philosophy of Logic TI - Arie L. Molendijk, Aus dem Dunklen ins Helle. Wissenschaft und Theologie im Denken von Heinrich Scholz. Mit unveröffentlichten Thesenreihen von Heinrich Scholz und Karl Barth. Rodopi: Amsterdam/Atlanta, GA 1991 (= Amsterdam Studies in Theology; VIII) VL - 14 ER - TY - GEN AU - Peckhaus, Volker ID - 17773 T2 - Modern Logic TI - Ein Jahrhundert Mathematik 1890–1990. Festschrift zum Jubiläum der DMV. hg. v. Gerd Fischer/Friedrich Hirzebruch/Winfried Scharlau/Willi Törnig, Friedrich Vieweg & Sohn: Braunschweig/Wiesbaden 1990 (= Dokumente zur Geschichte der Mathematik; 6) VL - 3 ER - TY - GEN AU - Peckhaus, Volker ED - Hormigon, Mariano ED - Ausejo, Elena ED - Dhombres, Jean ID - 17831 T2 - XIXth International Congress of History of Science. 22–29 August 1993 Zaragoza (Spain). Book of Abstracts Symposia TI - The Development of Ernst Schröder’s Attitude towards Logic [Abstract] VL - Nr. 4.2 ER - TY - GEN AU - Peckhaus, Volker ED - Toepell, Michael ID - 17829 T2 - Fachsektion Geschichte der Mathematik der Deutschen Mathematiker-Vereinigung. Sektionstagung vom 22. bis 26. März 1993 in Wuppertal TI - Leibniz’ ,Mathesis universalis‘ und die Mathematiker des 19. Jahrhunderts [Abstract] ER - TY - THES AU - Heinemann, Lothar ID - 30020 SN - 3-8267-2036-9 TI - Modellbildung von Mehrwicklungstransformatoren bei quasi-stationären Feldstärkeverteilungen ER - TY - THES AU - Lüdeke, Hans-Peter ID - 30019 SN - 978-3-89349-872-7 TI - Untersuchung von Schaltnetzteilen mit kontinuierlichen Resonanzschwingungen ER - TY - CONF AU - Venkataraman, Srikanth AU - Rajski, Janusz AU - Hellebrand, Sybille AU - Tarnick, Steffen ID - 13015 T2 - ACM/IEEE International Conference on Computer Aided Design (ICCAD'93) TI - An Efficient Bist Scheme Based On Reseeding Of Multiple Polynomial Linear Feedback Shift Registers ER - TY - CONF AU - Böcker, Joachim AU - Janning, Jörg AU - Anbuhl, Kay ID - 29988 T2 - EPE’93, Brighton TI - Realization of a High-Dynamic Discrete-Time Controller for PWM Inverter-Fed Induction Motor Drives VL - 4 ER - TY - CHAP AU - Öhlschläger, Claudia ID - 32991 T2 - Rundbrief Frauen in der Literaturwissenschaft 37. Mai 1993: Sprachen der Liebe TI - ́Augen wie Leuchtkäfer ́ - Zur Sprache der Liebe in Mario Vargas Llosas ́ Lob der Stiefmutter ER - TY - JOUR AU - Schnepp, W. AU - Disch, S. AU - Schmidt, Claudia ID - 35389 IS - 3 JF - Liquid Crystals KW - Condensed Matter Physics KW - General Materials Science KW - General Chemistry SN - 0267-8292 TI - 2H NMR study on the lyomesophases of the system hexaethylene glycol dodecyl methyl ether/water Temperature dependence of quadrupole splittings VL - 14 ER - TY - JOUR AU - Rosen, M. E. AU - Rucker, S. P. AU - Schmidt, Claudia AU - Pines, A. ID - 35387 IS - 15 JF - The Journal of Physical Chemistry KW - Physical and Theoretical Chemistry KW - General Engineering SN - 0022-3654 TI - Two-dimensional proton NMR studies of the conformations and orientations of n-alkanes in a liquid-crystal solvent VL - 97 ER - TY - CHAP AU - Maas, Utz AU - Tophinke, Doris ED - Schmidt-Radefeld, Jürgen ED - Harder, Andreas ID - 18430 T2 - Sprachwandel und Sprachgeschichte. FS für Helmut Lüdtke TI - Loser und fester Anschluß. Versuch der Neubewertung einer abgelegten Kategorie ER - TY - CHAP AU - Maas, Utz AU - Frankenbusch, Marita AU - Johannlückens, Ralf AU - Stöwer-Gaus, Ursula AU - Striezel, Marion AU - Tophinke, Doris ED - Bade u. a., Klaus J. ID - 18429 T2 - Damme. Eine Stadt in ihrer Geschichte TI - Sprachentwicklung in Geschichte und Gegenwart ER - TY - CHAP AU - Hagengruber, Ruth Edith ED - Albertini, Tamara ID - 15570 T2 - Verum et Factum. Beiträge zur Geistesgeschichte und Philosophie der Renaissance. Festschrift zum 60. Geburtstag von Stephan Otto TI - Punkt und Mathematik in der Metaphysik des Tommaso Campanella ER - TY - BOOK AU - Kamp, Hermann ID - 34422 TI - Memoria und Selbstdarstellung. Die Stiftungen des burgundischen Kanzlers Rolin VL - 30 ER - TY - CONF AU - Müller, Wolfgang AU - Kleinjohann, Bernd ID - 39578 T2 - Proceedings of the Seventh Annual Database Symposium TI - Tight Integration and Synchronization of Distributed Graphical Applications ER - TY - JOUR AU - Kitzerow, Heinz-Siegfried AU - Crooker, P. P. ID - 40003 IS - 1 JF - Liquid Crystals KW - Condensed Matter Physics KW - General Materials Science KW - General Chemistry SN - 0267-8292 TI - Electric field effects on the droplet structure in polymer dispersed cholesteric liquid crystals VL - 13 ER - TY - JOUR AU - Kitzerow, Heinz-Siegfried AU - Schmid, H. AU - Ranft, A. AU - Heppke, G. AU - Hikmet, R. A. M. AU - Lub, J. ID - 40005 IS - 3 JF - Liquid Crystals KW - Condensed Matter Physics KW - General Materials Science KW - General Chemistry SN - 0267-8292 TI - Observation of blue phases in chiral networks VL - 14 ER - TY - CONF AU - Müller, Wolfgang ID - 39580 T2 - Proc. of the 1st Asian Pacific Conference on Hardware Description Languages, Standards and Applications TI - Approaching the Denotational Semantics of Behavioral VHDL Descriptions ER - TY - CONF AU - Müller, Wolfgang AU - Lehrenfeld, Georg AU - Wiechers, N. ID - 39579 T2 - Proceedings of the 3nd EXPRESS User's Group Conference TI - Parallel Validation of STEP Files ER - TY - JOUR AU - Dolganov, V. K. AU - Lourie, O. R. AU - Heppke, G. AU - Kitzerow, Heinz-Siegfried ID - 40074 IS - 7 JF - Journal de Physique II KW - Physics and Astronomy (miscellaneous) KW - General Engineering KW - Atomic and Molecular Physics KW - and Optics SN - 1155-4312 TI - Anomalies of the temperature dependence of electrostriction in blue phases VL - 3 ER - TY - JOUR AU - Kitzerow, Heinz-Siegfried AU - Crooker, P. P. ID - 40071 IS - 5 JF - Journal de Physique II KW - Physics and Astronomy (miscellaneous) KW - General Engineering KW - Atomic and Molecular Physics KW - and Optics SN - 1155-4312 TI - UV-cured cholesteric polymer-dispersed liquid crystal display VL - 3 ER - TY - JOUR AU - Lasser, R. AU - Rösler, Margit ID - 40216 IS - 5 JF - Archiv der Mathematik KW - General Mathematics SN - 0003-889X TI - A note on property (T) of orthogonal polynomials VL - 60 ER - TY - CONF AU - Molsen, H. AU - Bardon, R. AU - Kitzerow, Heinz-Siegfried ID - 40516 T2 - SID Conference Proceedings, 13th International Display Research Conference TI - Electrooptics of Polymer-Dispersed Ferroelectric Liquid Crystals ER - TY - JOUR AU - EBBERG, A AU - Noé, Reinhold AU - STOLL, L AU - SCHIMPE, R ID - 38496 IS - 5-6 JF - JOURNAL OF LIGHTWAVE TECHNOLOGY SN - 0733-8724 TI - A COHERENT OFDM SWITCHING-SYSTEM FOR FLEXIBLE OPTICAL NETWORK CONFIGURATION VL - 11 ER - TY - JOUR AU - Heppke, G. AU - Kitzerow, Heinz-Siegfried AU - Molsen, H. ID - 40327 IS - 1 JF - Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals KW - Condensed Matter Physics SN - 1058-725X TI - Electroclinic Effect in a Polymer-Dispersed Ferroelectric Liquid Crystal VL - 237 ER - TY - JOUR AU - Krüerke, D. AU - Kitzerow, Heinz-Siegfried AU - Heppke, G. AU - Vill, V. ID - 40324 IS - 10 JF - Berichte der Bunsengesellschaft für physikalische Chemie KW - General Chemical Engineering SN - 0005-9021 TI - First Observation of Selective Reflection and Blue Phases in Chiral Discotic Liquid Crystals VL - 97 ER - TY - JOUR AU - Baena, Maria J. AU - Buey, Julio AU - Espinet, Pablo AU - Kitzerow, Heinz-Siegfried AU - Heppke, Gerd ID - 40326 IS - 8 JF - Angewandte Chemie International Edition in English KW - General Chemistry KW - Catalysis SN - 0570-0833 TI - Metallomesogens with a Cholesteric Mesophase VL - 32 ER - TY - CONF AU - Brab, E. AU - Hilleringmann, Ulrich AU - Schumacher, K. ID - 39909 T2 - ESSCIRC ’93: Nineteenth European Solid-State Circuits Conference TI - Monolithic System Integration of Optical Devices, Photodetectors and Analog Transimpedance CMOS Amplifiers VL - 1 ER - TY - CONF AU - Schonstein, I. AU - Muller, J. AU - Hilleringmann, Ulrich AU - Goser, K. ID - 39910 T2 - ESSDERC ’93: 23rd European solid State Device Research Conference TI - Hot Carrier Monitoring in NMOS Transistors by Visible Light Emission ER - TY - CONF AU - Hilleringmann, Ulrich AU - Adam, S AU - Goser, K ID - 39913 T2 - ESSDtRC’93 TI - Micromechanic pressure sensors with optical readout and CMOS-preamplifiers on one silicon chip: Processing and first results ER - TY - JOUR AB - 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. AU - Meier, Torsten AU - Koch, M. AU - Weber, D. AU - Feldmann, J. AU - Göbel, E.O. AU - Schulze, A. AU - Thomas, P. AU - Schmitt-Rink, S. AU - Ploog, K. ID - 43449 IS - 3 JF - Physical Review B TI - Subpicosecond photon-echo spectroscopy on GaAs/AlAs short-period superlattices VL - 47 ER - TY - CHAP AB - 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. AU - Meier, Torsten AU - Göbel, E.O. AU - Koch, M. AU - Feldmann, J. AU - von Plessen, G. AU - Schulze, A. AU - Thomas, P. AU - Schmitt-Rink, S. AU - Köhler, K. AU - Ploog, K. ED - Lookwood, D. ED - Pinczuk, A. ID - 43442 SN - 978-94-010-4845-3 T2 - Optical Phenomena in Semiconductor Structures of Reduced Dimension TI - Time resolved Four Wave Mixing in GaAs/AlAs Quantum Well Structures ER - TY - JOUR AB - 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. AU - Meier, Torsten AU - Feldmann, J. AU - von Plessen, G. AU - Koch, M. AU - Göbel, E.O. AU - Thomas, P. AU - Bacher, G. AU - Hartmann, C. AU - Schweizer, H. AU - Schäfer, W. AU - Nickel, H. ID - 43448 IS - 20 JF - Physical review letters TI - Coherent Dynamics of Excitonic Wave Packets VL - 70 ER - TY - JOUR AB - 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 AU - Meier, Torsten AU - Batsch, M. AU - Thomas, P. AU - Lindberg, M. AU - Koch, S.W. AU - Shah, J. ID - 43447 IS - 16 JF - Physical Review B TI - Dipole-dipole coupling of excitons in double quantum wells VL - 48 ER - TY - GEN AU - Schroeter-Wittke, Harald ID - 43510 T2 - Der Evangelische Erzieher TI - Schalom Ben-Chorin: Ich lege meine Hand auf meinen Mund. Meditation zu Johannes Brahms "Ein Deutsches Requiem" und Arnold Schönbergs "Ein Überlebender aus Warschau" VL - 45 ER - TY - JOUR AU - Schroeter-Wittke, Harald ID - 43508 IS - 3-4 JF - Forschungsjournal Neue Soziale Bewegungen TI - Eccelsia ludens. Ein Versuch über den Deutschen Evangelischen Kirchentag VL - 6 ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Domay, Erhard ID - 43509 T2 - Gottesdienstpraxis. Serie A. III. Perikopenreihe Band 2 TI - Christi Himmelfahrt. Predigttext: 1. Könige 8,22-24.26-28 ER - TY - CHAP AU - Schroeter-Wittke, Harald AU - Wicke, Berthold ED - Koerrenz, Ralf ED - Remy, Jochen ID - 43507 T2 - Mit Liedern predigen. Theorie und Praxis der Liedpredigt TI - Wir sind bei Gott gelitten - Ein Passionsgottesdiernst über den Choral "O Haupt voll Blut und Wunden" und seine Melodie ER - TY - THES AU - Schroeter-Wittke, Harald ID - 43505 SN - 3-17-012556-7 TI - Kirchentag als vor-läufige Kirche. Der Kirchentag als eine besondere Gestalt des Christseins zwischen kirche und Welt VL - 13 ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Englert, Rudolf ID - 43506 T2 - Woran sie glaubten - wofür sie lebten. 365 Wegbegleiter für die Tages des Jahres TI - 12. März - Geburtstag von Paul Gerhardt (1607-1676) ER - TY - THES AU - Müller, Inez ID - 44157 SN - 3-86110-015-0 TI - Walter Benjamin und Bertolt Brecht - Ansätze zu einer dialektischen Ästhetik in den dreißiger Jahren. VL - 40 ER - TY - CONF AB - 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 AU - Meier, Torsten AU - Bennhardt, D. AU - Thomas, P. AU - Eccleston, R. AU - Mayer, E. AU - Kuhl, J. ID - 44286 SN - 1-55752-302-9 T2 - Quantum Electronics and Laser Science Conference TI - Theory for polarization-dependent four-wave-mixing signals in quantum wells ER - TY - CONF AB - 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. AU - Meier, Torsten AU - Koch, M. AU - Feldmann, J. AU - von Plessen, G. AU - Schulze, A. AU - Göbel, E.O. AU - Thomas, P. AU - Schmitt-Rink, S. AU - Shah, J. AU - Ploog, K. AU - Köhler, K. ID - 44287 SN - 1-55752-302-9 T2 - Quantum Electronics and Laser Science Conference TI - Coherent coupling of exciton transitions in semiconductor quantum structures ER - TY - BOOK ED - Hilgert, Joachim ED - Neeb, K.-H. ID - 51496 TI - Lie Semigroups and their Applications VL - 1552 ER - TY - GEN AU - Hilgert, Joachim ID - 51584 T2 - JBer. DMV TI - Corwin, L. und F.P. Greenleaf. Representations of Nilpotent Lie Groups and their Applications. (Cambridge University Press, 1990) VL - 95 ER -