@article{18470,
  abstract     = {{Using ab initio computational methods, we study the structural and electronic properties of strained silicon, which has emerged as a promising technology to improve the performance of silicon-based metal-oxide-semiconductor field-effect transistors. In particular, higher electron mobilities are observed in n-doped samples with monoclinic strain along the [110] direction, and experimental evidence relates this to changes in the effective mass as well as the scattering rates. To assess the relative importance of these two factors, we combine density-functional theory in the local-density approximation with the GW approximation for the electronic self-energy and investigate the effect of uniaxial and biaxial strains along the [110] direction on the structural and electronic properties of Si. Longitudinal and transverse components of the electron effective mass as a function of the strain are derived from fits to the quasiparticle band structure and a diagonalization of the full effective-mass tensor. The changes in the effective masses and the energy splitting of the conduction-band valleys for uniaxial and biaxial strains as well as their impact on the electron mobility are analyzed. The self-energy corrections within GW lead to band gaps in excellent agreement with experimental measurements and slightly larger effective masses than in the local-density approximation.}},
  author       = {{Bouhassoune, Mohammed and Schindlmayr, Arno}},
  issn         = {{1687-8124}},
  journal      = {{Advances in Condensed Matter Physics}},
  publisher    = {{Hindawi}},
  title        = {{{Ab initio study of strain effects on the quasiparticle bands and effective masses in silicon}}},
  doi          = {{10.1155/2015/453125}},
  volume       = {{2015}},
  year         = {{2015}},
}

@article{40397,
  author       = {{Pérez, A. M. and Sharapova, Polina and Straupe, S. S. and Miatto, F. M. and Tikhonova, O. V. and Leuchs, G. and Chekhova, M. V.}},
  issn         = {{1050-2947}},
  journal      = {{Physical Review A}},
  keywords     = {{Atomic and Molecular Physics, and Optics}},
  number       = {{5}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Projective filtering of the fundamental eigenmode from spatially multimode radiation}}},
  doi          = {{10.1103/physreva.92.053861}},
  volume       = {{92}},
  year         = {{2015}},
}

@article{40398,
  author       = {{Dyakonov, I V and Sharapova, Polina and Iskhakov, T Sh and Leuchs, G}},
  issn         = {{1612-2011}},
  journal      = {{Laser Physics Letters}},
  keywords     = {{Physics and Astronomy (miscellaneous), Instrumentation}},
  number       = {{6}},
  publisher    = {{IOP Publishing}},
  title        = {{{Direct Schmidt number measurement of high-gain parametric down conversion}}},
  doi          = {{10.1088/1612-2011/12/6/065202}},
  volume       = {{12}},
  year         = {{2015}},
}

@article{40396,
  author       = {{Sharapova, Polina and Pérez, A. M. and Tikhonova, O. V. and Chekhova, M. V.}},
  issn         = {{1050-2947}},
  journal      = {{Physical Review A}},
  keywords     = {{Atomic and Molecular Physics, and Optics}},
  number       = {{4}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Schmidt modes in the angular spectrum of bright squeezed vacuum}}},
  doi          = {{10.1103/physreva.91.043816}},
  volume       = {{91}},
  year         = {{2015}},
}

@article{40394,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Walk-off effects, originating from the difference between the group and phase velocities, limit the efficiency of nonlinear optical interactions. While transverse walk-off can be eliminated by proper medium engineering, longitudinal walk-off is harder to avoid. In particular, ultrafast twin-beam generation via pulsed parametric down-conversion and four-wave mixing is only possible in short crystals or fibres. Here we show that in high-gain parametric down-conversion, one can overcome the destructive role of both effects and even turn them into useful tools for shaping the emission. In our experiment, one of the twin beams is emitted along the pump Poynting vector or its group velocity matches that of the pump. The result is markedly enhanced generation of both twin beams, with the simultaneous narrowing of angular and frequency spectrum. The effect will enable efficient generation of ultrafast twin photons and beams in cavities, waveguides and whispering-gallery mode resonators.</jats:p>}},
  author       = {{Pérez, Angela M. and Spasibko, Kirill Yu and Sharapova, Polina and Tikhonova, Olga V. and Leuchs, Gerd and Chekhova, Maria V.}},
  issn         = {{2041-1723}},
  journal      = {{Nature Communications}},
  keywords     = {{General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry, Multidisciplinary}},
  number       = {{1}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Giant narrowband twin-beam generation along the pump-energy propagation direction}}},
  doi          = {{10.1038/ncomms8707}},
  volume       = {{6}},
  year         = {{2015}},
}

@article{43250,
  abstract     = {{We present radiation mechanism exhibited by a higher order soliton. In a course of its evolution the higher-order soliton emits polychromatic radiation resulting in formation of multipeak frequency comb-like spectral band. The shape and spectral position of this band can be effectively controlled by the relative strength of the third order dispersion. An analytical description is corroborated by numerical simulations. It is shown that for longer pulses the described effect persists also under the action of higher order perturbations such as Raman and self-steepening.}},
  author       = {{Driben, R. and Yulin, A. V. and Efimov, A.}},
  journal      = {{Optics Express}},
  number       = {{15}},
  pages        = {{19112--19117}},
  title        = {{{Resonant radiation from oscillating higher order solitons}}},
  doi          = {{10.1364/OE.23.019112}},
  volume       = {{23}},
  year         = {{2015}},
}

@article{43249,
  abstract     = {{The effect of mutual interactions between dark solitons and dispersive waves is investigated numerically and analytically. The condition of the resonant scattering of dispersive waves on dark solitons is derived and compared against the results of the numerical simulations. It is shown that the interaction with intense dispersive waves affects the dynamics of the solitons by accelerating, decelerating, or destroying them. It is also demonstrated that two dark solitons can form a cavity for dispersive waves bouncing between the two dark solitons. The differences of the resonant scattering of the dispersive waves on dark and bright solitons are discussed. In particular, we demonstrate that two dark solitons and a dispersive wave bouncing in between them create a solitonic cavity with convex “mirrors,” unlike the concave “mirror” in the case of bright solitons.}},
  author       = {{Oreshnikov, I. and Yulin, A. V. and Driben, R.}},
  journal      = {{Optics Letters}},
  number       = {{21}},
  pages        = {{4871--4874}},
  title        = {{{Weak and strong interactions between dark solitons and dispersive waves}}},
  doi          = {{10.1364/OL.40.004871}},
  volume       = {{40}},
  year         = {{2015}},
}

@article{1697,
  author       = {{Zeuner, Franziska and Muldarisnur, Mulda and Hildebrandt, Andre and Förstner, Jens and Zentgraf, Thomas}},
  issn         = {{1530-6984}},
  journal      = {{Nano Letters}},
  keywords     = {{tet_topic_plasmonics}},
  number       = {{6}},
  pages        = {{4189--4193}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Coupling Mediated Coherent Control of Localized Surface Plasmon Polaritons}}},
  doi          = {{10.1021/acs.nanolett.5b01381}},
  volume       = {{15}},
  year         = {{2015}},
}

@article{1699,
  author       = {{Li, Guixin and Chen, Shumei and Pholchai, Nitipat and Reineke, Bernhard and Wong, Polis Wing Han and Pun, Edwin Yue Bun and Cheah, Kok Wai and Zentgraf, Thomas and Zhang, Shuang}},
  issn         = {{1476-1122}},
  journal      = {{Nature Materials}},
  number       = {{6}},
  pages        = {{607--612}},
  publisher    = {{Springer Nature}},
  title        = {{{Continuous control of the nonlinearity phase for harmonic generations}}},
  doi          = {{10.1038/nmat4267}},
  volume       = {{14}},
  year         = {{2015}},
}

@inbook{35491,
  abstract     = {{Im Hinblick auf die Verbesserung der Lehrerbildung besteht ein hohes Interesse daran, die Struktur und Genese der Kompetenzen von Lehramtsstudierenden zu beschreiben. Die Ziele des vorgestellten Projekts liegen in der Modellierung und Messung domänenspezifischer und generischer Kompetenzen, die Lehramtsstudierende der Physik im Hochschulstudium erwerben sollen. Das Modell umfasst differenzierte Facetten des physikalischen Fachwissens und des physikdidaktischen Wissens sowie das fachspezifische Erklärungswissen in unterrichtsnahen Vermittlungssituationen. Es enthält zudem Annahmen über Zusammenhänge dieser Bereiche des Professionswissens. Ausgehend vom Modell wurden schriftliche Testinstrumente und videografierte Lehr-Lern-Rollenspiele entwickelt und bei Physik-Lehramtsstudierenden eingesetzt. Die Ergebnisse sprechen für die Validität der genutzten Testverfahren. (DIPF/Orig.)}},
  author       = {{Riese, Josef and Kulgemeyer, Christoph and Zander, Simon and Borowski, Andreas and Fischer, Hans E. and Gramzow, Yvonne and Reinhold, Peter and Schecker, Horst and Tomczyszyn, Elisabeth}},
  booktitle    = {{Kompetenzen von Studierenden: 61. Beiheft der Zeitschrift für Pädagogik}},
  editor       = {{Blömeke, Sigrid and Zlatkin-Troitschanskaia, Olga}},
  pages        = {{55--79}},
  publisher    = {{Belz}},
  title        = {{{Modellierung und Messung des Professionswissens in der Lehramtsausbildung Physik}}},
  doi          = {{10.25656/01:15503}},
  year         = {{2015}},
}

@article{21039,
  author       = {{Brecht, Benjamin and Eckstein, Andreas and Ricken, Raimund and Quiring, Viktor and Suche, Hubertus and Sansoni, Linda and Silberhorn, Christine}},
  issn         = {{1050-2947}},
  journal      = {{Physical Review A}},
  title        = {{{Demonstration of coherent time-frequency Schmidt mode selection using dispersion-engineered frequency conversion}}},
  doi          = {{10.1103/physreva.90.030302}},
  volume       = {{90}},
  year         = {{2014}},
}

@article{21040,
  author       = {{Krapick, S. and Stefszky, M. S. and Jachura, M. and Brecht, B. and Avenhaus, M. and Silberhorn, C.}},
  issn         = {{1050-2947}},
  journal      = {{Physical Review A}},
  title        = {{{Bright integrated photon-pair source for practical passive decoy-state quantum key distribution}}},
  doi          = {{10.1103/physreva.89.012329}},
  volume       = {{89}},
  year         = {{2014}},
}

@article{7223,
  author       = {{Schüler, B. and Cerchez, M. and Xu, Hengyi and Heinzel, T. and Reuter, Dirk and Wieck, A.D.}},
  issn         = {{0749-6036}},
  journal      = {{Superlattices and Microstructures}},
  pages        = {{54--62}},
  publisher    = {{Elsevier BV}},
  title        = {{{Magnetoconductance of a magnetic double barrier in a quantum wire}}},
  doi          = {{10.1016/j.spmi.2014.12.017}},
  volume       = {{79}},
  year         = {{2014}},
}

@article{7224,
  author       = {{Repp, J. and Schinner, G. J. and Schubert, E. and Rai, A. K. and Reuter, Dirk and Wieck, A. D. and Wurstbauer, U. and Kotthaus, J. P. and Holleitner, A. W.}},
  issn         = {{0003-6951}},
  journal      = {{Applied Physics Letters}},
  number       = {{24}},
  publisher    = {{AIP Publishing}},
  title        = {{{Confocal shift interferometry of coherent emission from trapped dipolar excitons}}},
  doi          = {{10.1063/1.4904222}},
  volume       = {{105}},
  year         = {{2014}},
}

@article{7225,
  author       = {{Schüler, B. and Cerchez, M. and Xu, Hengyi and Schluck, J. and Heinzel, T. and Reuter, Dirk and Wieck, A. D.}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{20}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Observation of quantum states without a semiclassical equivalence bound by a magnetic field gradient}}},
  doi          = {{10.1103/physrevb.90.201111}},
  volume       = {{90}},
  year         = {{2014}},
}

@article{7226,
  author       = {{Debus, J. and Sapega, V. F. and Dunker, D. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{23}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Spin-flip Raman scattering of the resident electron in singly charged (In,Ga)As/GaAs quantum dot ensembles}}},
  doi          = {{10.1103/physrevb.90.235404}},
  volume       = {{90}},
  year         = {{2014}},
}

@article{7227,
  author       = {{Varwig, S. and Evers, E. and Greilich, A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{12}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{All-optical implementation of a dynamic decoupling protocol for hole spins in (In,Ga)As quantum dots}}},
  doi          = {{10.1103/physrevb.90.121306}},
  volume       = {{90}},
  year         = {{2014}},
}

@article{7228,
  author       = {{Varwig, S. and Yugova, I. A. and René, A. and Kazimierczuk, T. and Greilich, A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{12}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Excitation of complex spin dynamics patterns in a quantum-dot electron spin ensemble}}},
  doi          = {{10.1103/physrevb.90.121301}},
  volume       = {{90}},
  year         = {{2014}},
}

@article{7229,
  author       = {{Shvarkov, Stepan and Ludwig, Astrid and Wieck, Andreas Dirk and Cordier, Yvon and Ney, Andreas and Hardtdegen, Hilde and Haab, Anna and Trampert, Achim and Ranchal, Rocío and Herfort, Jens and Becker, Hans-Werner and Rogalla, Detlef and Reuter, Dirk}},
  issn         = {{0370-1972}},
  journal      = {{physica status solidi (b)}},
  number       = {{9}},
  pages        = {{1673--1684}},
  publisher    = {{Wiley}},
  title        = {{{Magnetic properties of Gd-doped GaN}}},
  doi          = {{10.1002/pssb.201350205}},
  volume       = {{251}},
  year         = {{2014}},
}

@article{7230,
  author       = {{Henn, Tobias and Kießling, Tobias and Molenkamp, Laurens W. and Reuter, Dirk and Wieck, Andreas D. and Biermann, Klaus and Santos, Paulo V. and Ossau, Wolfgang}},
  issn         = {{0370-1972}},
  journal      = {{physica status solidi (b)}},
  number       = {{9}},
  pages        = {{1839--1849}},
  publisher    = {{Wiley}},
  title        = {{{Time and spatially resolved electron spin detection in semiconductor heterostructures by magneto-optical Kerr microscopy}}},
  doi          = {{10.1002/pssb.201350192}},
  volume       = {{251}},
  year         = {{2014}},
}