@inbook{43538, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Kaum zu glauben - Von der Häresie und dem Umgang mit ihr. Heiner Faulenbach zum 60. Geburtstag}}, editor = {{von Bülow, Vicco and Lexutt, Athina}}, pages = {{328--342}}, publisher = {{CMZ-Verlag}}, title = {{{Semper aliquis haeresis. Dreieinhalb Grenzgänge im Labyrinth von predigt und Häresie}}}, year = {{1998}}, } @inbook{43535, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Theopoesie. Theologie und Poesie in hermeneutischer Sicht}}, editor = {{Schröer, Henning and Fermor, Gotthard and Schroeter-Wittke, Harald}}, pages = {{121--127}}, title = {{{Hindemiths Symphonie "Mathis der Maler". Sprunghafter Versuch, einen musikalischen Vortrag zusammenzufassen}}}, year = {{1998}}, } @inbook{43537, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Kleiner Kabarettistischer Katechismus}}, editor = {{Ruddat, Günter and Schroeter-Wittke, Harald}}, pages = {{305--311}}, title = {{{Wider die Onanousie! oder: Warum es der Kirche gut tut, fremd zu gehen}}}, year = {{1998}}, } @article{43539, author = {{Schroeter-Wittke, Harald}}, journal = {{Praktische Theologie}}, pages = {{251--256}}, title = {{{Verletzung und Vernetzung. Erfahrungen aus der Arbeit mit Kunst in Bonner Kirchengemeinden}}}, volume = {{33}}, year = {{1998}}, } @book{43536, editor = {{Schroeter-Wittke, Harald and Ruddat, Günter}}, isbn = {{9783870625061}}, pages = {{320}}, publisher = {{CMZ-Verlag}}, title = {{{Kleiner Kabarettistischer Katechismus. Henning Schröer zum 66. Geburtstag}}}, year = {{1998}}, } @book{43534, editor = {{Schröer, Henning and Fermor, Gotthard and Schroeter-Wittke, Harald}}, isbn = {{978-3-87062-032-5}}, pages = {{164}}, publisher = {{CMZ-Verlag}}, title = {{{Theopoesie. Theologie und Poesie in hermeneutischer Sicht}}}, year = {{1998}}, } @misc{42622, author = {{Fuchs, Christian}}, booktitle = {{Informatik Forum 1998 (3+4)}}, title = {{{Review of “Information und Selbstorganisation“ (Information and self-organization, edited by N. Fenzl/W. Hofkirchner/G. Stockinger)}}}, year = {{1998}}, } @misc{42827, author = {{Kraft, Kerstin}}, publisher = {{in: form + zweck 15, 30. Jg., S. 44–53}}, title = {{{‘Schnittmuster’}}}, year = {{1998}}, } @misc{42828, author = {{Kraft, Kerstin}}, publisher = {{, in: Menschen, Nasen, Taschentücher, hrsg. von Gabriele Donder-Langer und Harry M. Zwergel, Kassel 1998, S. 79–89}}, title = {{{‘Gefaltete Kunst – Kunst des Faltens’}}}, year = {{1998}}, } @article{26009, abstract = {{Lamellar mesostructured aluminophosphates were synthesized from aluminum triisopropoxide and phosphoric acid; monododecyl phosphate surfactant was used as structure-directing template. Depending on the relative Al/P ratio in the samples, variable relative amounts of tetrahedrally and octahedrally coordinated Al are found, indicating that both aluminophosphate and aluminum oxide species (as thermodynamically favored) are being formed in the syntheses. This is investigated quantitatively by Al K-edge XANES spectroscopy. The same syntheses were carried out without phosphoric acid, resulting in similar lamellar structures. The inorganic lamellae of these products consist to a significant extent of aluminophosphate rather than exclusively of aluminum oxide, which means that the phosphate headgroups of the surfactant molecules become incorporated into the inorganic network. Thus, for the first time, the surfactant serves as both template and reactant.}}, author = {{Fröba, Michael and Tiemann, Michael}}, issn = {{0897-4756}}, journal = {{Chemistry of Materials}}, pages = {{3475--3483}}, title = {{{A New Role of the Surfactant in the Synthesis of Mesostructured Phases:  Dodecyl Phosphate as Template and Reactant for Aluminophosphates}}}, doi = {{10.1021/cm980712c}}, year = {{1998}}, } @inproceedings{39893, author = {{Horstmann, J.T. and Hilleringmann, Ulrich and Goser, K.}}, booktitle = {{28th European Solid-State Device Research Conference}}, pages = {{512--515}}, title = {{{Correlation Analysis of the Statistical Electrical Parameter Fluctuations in 50 nm MOS-Transistors}}}, year = {{1998}}, } @article{43340, abstract = {{Femtosecond two beam and three beam ( ω1,ω1;ω2) four-wave mixing (FWM) experiments on GaAs quantum wells have been performed using two partially synchronized, independently tunable lasers with external jitter compensation. Heavy and light hole beatings are observed with these two mutually incoherent lasers. FWM signals are observed when ω2 is completely below the exciton energies, with no spectral overlap with the absorption profile. These off-resonant signals are stronger than the interband continuum signals for equivalent detunings.}}, author = {{Meier, Torsten and Kim, D.S. and Sohn, J.Y. and Yahng, J.S. and Ahn, Y. H. and Yee, K.J. and Yee, D.S. and Cho, Y.D. and Hong, S.C. and Kim, W.S. and Woo, J.C. and Koch, S.W. and Woo, D.H. and Kim, E. K. and Kim , S.H. and Kim, C.S.}}, journal = {{Physical review letters}}, number = {{21}}, pages = {{4803--4806}}, publisher = {{American Physical Society}}, title = {{{Femtosecond four-wave mixing experiments on GaAs quantum wells using two independently tunable lasers}}}, doi = {{10.1103/PhysRevLett.80.4803}}, volume = {{80}}, year = {{1998}}, } @article{43341, abstract = {{Closed Green-function expressions for the third-order response of semiconductors are derived by mapping the two-band model onto the much simpler molecular (Frenkel) Hamiltonian. The signatures of two-exciton resonances are incorporated through the exciton scattering matrix, totally avoiding the explicit calculation of two-exciton states. Exact expressions for the nonlinear optical response of two-dimensional semiconductor nanostructures in a strong perpendicular magnetic field are derived by truncating at the n=1 Landau level, and using the symmetry of the system and a group-theoretical analysis. We find that the nonlinear optical response depends crucially on asymmetries between particle-particle and particle-hole Coulomb interactions.}}, author = {{Meier, Torsten and Chernyak, V. and Yokojima, S. and Mukamel, S.}}, journal = {{Physical Review B}}, number = {{8}}, pages = {{4496--4516}}, publisher = {{American Physical Society}}, title = {{{Effective Frenkel Hamiltonian for optical nonlinearities in semiconductors: Application to magnetoexcitons}}}, doi = {{10.1103/PhysRevB.58.4496}}, volume = {{58}}, year = {{1998}}, } @article{43343, abstract = {{In his Comment on our work Glutsch raises, on the basis of a calculation for a dimerized three-dimensional superlattice, four points: (1) odd-parity excitons do not contribute to optical absorption, (2) there are no forbidden single-particle transitions, (3) there is a coupling of the e1-hh2 exciton (called ¯X in Ref. 1) to the underlying e1-hh1 continuum that leads to a Fano resonance, and (4) the extension of the exciton wave function is infinite in an all space directions rather than having a small extension. In this Reply these four points are addressed and it is shown that our previous conclusions remain valid.}}, author = {{Meier, Torsten and Bott, K. and Hader, J. and Brinkmann, D. and Koch, S.W. and Thomas, P.}}, journal = {{Physical Review B}}, number = {{23}}, publisher = {{American Physical Society}}, title = {{{Reply to Comment on "Odd-parity excitons in semiconductor superlattices"}}}, doi = {{10.1103/PhysRevB.58.15911}}, volume = {{58}}, year = {{1998}}, } @article{43344, abstract = {{Absorption and differential electroabsorption spectra of a GaInAs/InP superlattice in the regime of Wannier–Stark localization are compared with spectra derived from the Semiconductors Bloch Equations. The absorption is strongly underestimated for higher energies by the effective mass approximation but good agreement is achieved by using an energy dependent in-plane effective mass. No fitting parameters are used except for a phenomenological broadening. The lineshape of the field-modulated spectra is dominated by the strong field dependence of Wannier–Stark transitions and depends on the amplitude of the modulating field which should be kept small for best results. REFERENCES}}, author = {{Meier, Torsten and Thränhardt, A. and Kolbe, H.J. and Hader, J. and Weiser, G. and Koch, S.W.}}, journal = {{Applied Physics Letters}}, number = {{18}}, pages = {{2612--2614}}, publisher = {{American Institute of Physics}}, title = {{{Field-dependent absorption in superlattices: Comparison of theory and experiment}}}, doi = {{10.1063/1.122522}}, volume = {{73}}, year = {{1998}}, } @article{43342, abstract = {{The four-wave mixing (FWM) signal of a semiconductor superlattice with an external electric field is evaluated using the semiconductor Bloch equations. It is found that the FWM signal for a GaAs/AlGaAs-semiconductor superlattices with a lattice constant d has a deep valley when the electric field is around eF d = 1 meV. It is also found that the deep valley comes mainly from the broken inversion symmetry caused by the exteral electric field and that the field intensity determines the sign and the magnitude of the Coulomb-induced optical nonlinearities.}}, author = {{Meier, Torsten and Je, K.-C and Kim, Y. and Koch, S.W.}}, journal = {{Journal of the Korean Physical Society}}, number = {{4}}, pages = {{437--440}}, title = {{{Field-Induced Four-Wave Mixing Signal in Semiconductor Superlattices}}}, volume = {{32}}, year = {{1998}}, } @misc{43541, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Pastoraltheologie}}, pages = {{475--477}}, title = {{{Kultur, Kulturen, Gottesdienste. Öffentliche Inszenierung des Lebens. Festschrift für Peter Cornehl}}}, volume = {{87}}, year = {{1998}}, } @article{43540, author = {{Schroeter-Wittke, Harald}}, journal = {{Zeitschrift für Gottesdienst und Predigt}}, number = {{2}}, pages = {{17--18}}, title = {{{Nach Ostern: Unsere Jesusbilder. Predigt zu Mk 12,28-34}}}, volume = {{16}}, year = {{1998}}, } @inproceedings{44274, abstract = {{Femtosecond four-wave mixing experiments on GaAs/AlGaAs quantum wells are performed with two independently tunable lasers. Many new results are found, including the heavy-hole-light-hole beating with these two mutually incoherent lasers.}}, author = {{Meier, Torsten and Yahng, J.S. and Ahn, Y. H. and Sohn, J.Y. and Koch, S.W. and Kim, D.S.}}, booktitle = {{Ultrafast Phenomena XI}}, isbn = {{10.1007/978-3-642-72289-9_70}}, location = {{Garmisch-Partenkirchen, Germany}}, pages = {{236--238}}, publisher = {{Springer, Berlin, Heidelberg}}, title = {{{Femtosecond Two Color Four-Wave Mixing Experiments on GaAs Quantum Wells Using Two Independently Tunable Lasers}}}, doi = {{10.1007/978-3-642-72289-9_70}}, year = {{1998}}, } @article{44541, author = {{Burban, Igor and Duma, W.}}, journal = {{U sviti Mathematyky}}, number = {{2}}, title = {{{Projective transformations of a plane}}}, volume = {{4}}, year = {{1998}}, }