@article{8665, author = {{Stavarache, V. and Reuter, Dirk and Wieck, A. D. and Schwab, M. and Yakovlev, D. R. and Oulton, R. and Bayer, M.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Control of quantum dot excitons by lateral electric fields}}}, doi = {{10.1063/1.2345233}}, year = {{2006}}, } @article{8666, author = {{Richter, M. and Hugues, M. and Damilano, B. and Massies, J. and Duboz, J.-Y. and Reuter, Dirk and Wieck, A. D.}}, issn = {{1610-1634}}, journal = {{physica status solidi (c)}}, pages = {{3848--3851}}, title = {{{1.5 µm luminescence from InAs/GaxIn1–xNyAs1–y quantum dots grown on GaAs substrate}}}, doi = {{10.1002/pssc.200671567}}, year = {{2006}}, } @article{8668, author = {{Reuter, Dirk and Kailuweit, P. and Roescu, R. and Wieck, A. D. and Wibbelhoff, O. S. and Lorke, A. and Zeitler, U. and Maan, J. C.}}, issn = {{0370-1972}}, journal = {{physica status solidi (b)}}, pages = {{3942--3945}}, title = {{{Hole and electron wave functions in self-assembled InAs quantum dots: a comparison}}}, doi = {{10.1002/pssb.200671520}}, year = {{2006}}, } @article{8669, author = {{Oulton, R. and Verbin, S. Yu. and Auer, T. and Cherbunin, R. V. and Greilich, A. and Yakovlev, D. R. and Bayer, M. and Reuter, Dirk and Wieck, A.}}, issn = {{0370-1972}}, journal = {{physica status solidi (b)}}, pages = {{3922--3927}}, title = {{{Sub-second electron spin lifetimes in quantum dots at zero applied magnetic field due to alignment of QD nuclei}}}, doi = {{10.1002/pssb.200671529}}, year = {{2006}}, } @article{8670, author = {{Mallet, F. and Ericsson, J. and Mailly, D. and Ünlübayir, S. and Reuter, Dirk and Melnikov, A. and Wieck, A. D. and Micklitz, T. and Rosch, A. and Costi, T. A. and Saminadayar, L. and Bäuerle, C.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, title = {{{Scaling of the Low-Temperature Dephasing Rate in Kondo Systems}}}, doi = {{10.1103/physrevlett.97.226804}}, year = {{2006}}, } @article{8671, author = {{Hohage, P. E. and Bacher, G. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Coherent spin oscillations in bulk GaAs at room temperature}}}, doi = {{10.1063/1.2398909}}, year = {{2006}}, } @article{8672, author = {{Bominaar-Silkens, I M A and Schaapman, M R and Zeitler, U and Christianen, P C M and Maan, J C and Reuter, Dirk and Wieck, A D and Schuh, D and Bichler, M}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, pages = {{315--315}}, title = {{{Magnetization of bilayer two-dimensional electron systems}}}, doi = {{10.1088/1367-2630/8/12/315}}, year = {{2006}}, } @article{8673, author = {{Greilich, A. and Oulton, R. and Zhukov, E. A. and Yugova, I. A. and Yakovlev, D. R. and Bayer, M. and Shabaev, A. and Efros, Al. L. and Merkulov, I. A. and Stavarache, V. and Reuter, Dirk and Wieck, A.}}, issn = {{1610-1634}}, journal = {{physica status solidi (c)}}, pages = {{3740--3743}}, title = {{{Electron spin coherence in singly charged (In,Ga)As/GaAs quantum dots}}}, doi = {{10.1002/pssc.200671524}}, year = {{2006}}, } @article{48999, abstract = {{The fast dephasing of electron spins in an ensemble of quantum dots is detrimental for applications in quantum information processing. We show here that dephasing can be overcome by using a periodic train of light pulses to synchronize the phases of the precessing spins, and we demonstrate this effect in an ensemble of singly charged (In,Ga)As/GaAs quantum dots. This mode locking leads to constructive interference of contributions to Faraday rotation and presents potential applications based on robust quantum coherence within an ensemble of dots.}}, author = {{Greilich, A. and Yakovlev, D. R. and Shabaev, A. and Efros, Al. L. and Yugova, I. A. and Oulton, R. and Stavarache, V. and Reuter, Dirk and Wieck, A. and Bayer, M.}}, issn = {{0036-8075}}, journal = {{Science}}, keywords = {{Multidisciplinary}}, number = {{5785}}, pages = {{341--345}}, publisher = {{American Association for the Advancement of Science (AAAS)}}, title = {{{Mode Locking of Electron Spin Coherences in Singly Charged Quantum Dots}}}, doi = {{10.1126/science.1128215}}, volume = {{313}}, year = {{2006}}, } @article{23493, abstract = {{A microscopic analysis is presented for the extreme nonlinear optical response of semiconductor quantum wells and wires after intense excitation with femtosecond laser pulses. In this regime, the light–matter interaction is the dominant eneregy scale, leading to a number of interesting effects such as carrier-wave Rabi flopping, Mollow splitting, and the creation of higher harmonics. The results presented here were obtained by evaluating the semiconductor Bloch equations without the rotating wave approximation. The electronic dispersion of semiconductor nanostructures is shown to have a characteristic influence on the extreme nonlinear optical response, whereas the relative importance of the carrier Coulomb interaction decreases with increasing excitation intensities.}}, author = {{Golde, Daniel and Meier, Torsten and Koch, Stephan W.}}, issn = {{0740-3224}}, journal = {{Journal of the Optical Society of America B}}, number = {{12}}, pages = {{2559--2565}}, title = {{{Microscopic analysis of extreme nonlinear optics in semiconductor nanostructures}}}, doi = {{10.1364/josab.23.002559}}, volume = {{23}}, year = {{2006}}, } @article{23495, abstract = {{The method of angular photonic correlations of spontaneous emission is introduced as an experimental, purely optical scheme to characterize disorder in semiconductor nanostructures. The theoretical expression for the angular correlations is derived and numerically evaluated for a model system. The results demonstrate how the proposed experimental method yields direct information about the spatial distribution of the relevant states and thus on the disorder present in the system.}}, author = {{Bozsoki, P. and Thomas, P. and Kira, M. and Hoyer, W. and Meier, Torsten and Koch, S. W. and Maschke, K. and Varga, I. and Stolz, H.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, number = {{22}}, title = {{{Characterization of Disorder in Semiconductors via Single-Photon Interferometry}}}, doi = {{10.1103/physrevlett.97.227402}}, volume = {{97}}, year = {{2006}}, } @article{23491, abstract = {{A brief overview of a consistent microscopic approach to model the optical and electronic properties of semiconductor nanostructures is presented. Coupled semiconductor Bloch and Maxwell equations are used to investigate the performance of semiconductor microcavity structures, photonic band gap systems, and lasers. The predictive potential of the microscopic theory is demonstrated for several examples of practical importance. Optical gain and output characteristics are computed for modern vertical external cavity surface emitting laser structures. It is shown how design flexibilities can be used to optimize the device performance. Nanostructures are proposed where semiconductor quantum wells are embedded in one-dimensional photonic crystals. For field modes spectrally below the photonic band edge it is shown that the optical gain and absorption can be enhanced by more than one order of magnitude over the value of the homogeneous medium. The increased gain can be used for laser action by placing quantum wells and a suitably designed photonic crystal structure inside a microcavity.}}, author = {{Thränhardt, A. and Meier, Torsten and Reichelt, Matthias and Schlichenmaier, C. and Pasenow, B. and Kuznetsova, I. and Becker, S. and Stroucken, T. and Hader, J. and Zakharian, A.R. and Moloney, J.V. and Chow, W.W. and Koch, S.W.}}, issn = {{0022-3093}}, journal = {{Journal of Non-Crystalline Solids}}, number = {{23-25}}, pages = {{2480--2483}}, title = {{{Microscopic modeling of the optical properties of semiconductor nanostructures}}}, doi = {{10.1016/j.jnoncrysol.2006.02.064}}, volume = {{352}}, year = {{2006}}, } @article{23492, abstract = {{The coherent ultrafast optical injection and the temporal evolution of charge and spin currents in semiconductors is analyzed using a microscopic many-body theory. The approach is based on the semiconductor Bloch equations and includes light-field-induced intraband and interband excitations, excitonic effects, and carrier–LO-phonon and carrier-carrier scattering processes. The relaxation effects are treated both in the second Born-Markov approximation and on the level of quantum kinetic theory including memory effects. The dynamics of the charge and spin currents is evaluated numerically for a one-dimensional model system. The dependence of the currents and their decay on the temperature, the excitation intensities, and the frequencies of the incident light fields is discussed. Whereas the overall decay dynamics is described well within the Markov approximation, the quantum kinetic theory predicts additional oscillatory signatures in the current transients.}}, author = {{Duc, H. T. and Vu, Q. T. and Meier, Torsten and Haug, H. and Koch, S. W.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{16}}, title = {{{Temporal decay of coherently optically injected charge and spin currents due to carrier–LO-phonon and carrier-carrier scattering}}}, doi = {{10.1103/physrevb.74.165328}}, volume = {{74}}, year = {{2006}}, } @article{13685, author = {{Preuss, M. and Bechstedt, F. and Schmidt, Wolf Gero and Sochos, J. and Schröter, B. and Richter, W.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{23}}, title = {{{Clean and pyrrole-functionalized Si- and C-terminated SiC surfaces: First-principles calculations of geometry and energetics compared with LEED and XPS}}}, doi = {{10.1103/physrevb.74.235406}}, volume = {{74}}, year = {{2006}}, } @article{13689, author = {{Preuss, M. and Miotto, R. and Bechstedt, F. and Rada, T. and Richardson, N. V. and Schmidt, Wolf Gero}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{11}}, title = {{{Structure, energetics, and vibrational spectra of perylene adsorbed on Si(001): First-principles calculations compared with STM and HREELS}}}, doi = {{10.1103/physrevb.74.115402}}, volume = {{74}}, year = {{2006}}, } @article{13688, author = {{Blankenburg, S. and Schmidt, Wolf Gero}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{15}}, title = {{{Adsorption of phenylglycine on copper: Density functional calculations}}}, doi = {{10.1103/physrevb.74.155419}}, volume = {{74}}, year = {{2006}}, } @article{13686, author = {{Schmidt, Wolf Gero and Seino, K. and Preuss, M. and Hermann, A. and Ortmann, F. and Bechstedt, F.}}, issn = {{0947-8396}}, journal = {{Applied Physics A}}, pages = {{387--397}}, title = {{{Organic molecule adsorption on solid surfaces: chemical bonding, mutual polarisation and dispersion interaction}}}, doi = {{10.1007/s00339-006-3691-0}}, volume = {{85}}, year = {{2006}}, } @article{13684, author = {{Letzig, T. and Willig, F. and Hahn, P. H. and Schmidt, Wolf Gero}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{24}}, title = {{{Experimental and theoretical evidence for a hydrogen stabilizedc(2×2)reconstruction of the P-rich InP(001) surface}}}, doi = {{10.1103/physrevb.74.245307}}, volume = {{74}}, year = {{2006}}, } @article{13691, author = {{Biering, S. and Hermann, A. and Schmidt, Wolf Gero}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{23}}, title = {{{Adsorption of water on chlorine-terminated Si(111) from first principles: Substrate-induced ordering versus intermolecular interactions}}}, doi = {{10.1103/physrevb.73.235429}}, volume = {{73}}, year = {{2006}}, } @article{13690, author = {{Thierfelder, C. and Hermann, A. and Schwerdtfeger, P. and Schmidt, Wolf Gero}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{4}}, title = {{{Strongly bonded water monomers on the ice Ih basal plane: Density-functional calculations}}}, doi = {{10.1103/physrevb.74.045422}}, volume = {{74}}, year = {{2006}}, }