@article{15857,
  author       = {{Di Nuzzo, Daniele and Fontanesi, Claudio and Jones, Rebecca and Allard, Sybille and Dumsch, Ines and Scherf, Ullrich and von Hauff, Elizabeth and Schumacher, Stefan and Da Como, Enrico}},
  issn         = {{2041-1723}},
  journal      = {{Nature Communications}},
  title        = {{{How intermolecular geometrical disorder affects the molecular doping of donor–acceptor copolymers}}},
  doi          = {{10.1038/ncomms7460}},
  year         = {{2015}},
}

@article{15859,
  author       = {{Schmutzler, Johannes and Lewandowski, Przemyslaw and Aßmann, Marc and Niemietz, Dominik and Schumacher, Stefan and Kamp, Martin and Schneider, Christian and Höfling, Sven and Bayer, Manfred}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  title        = {{{All-optical flow control of a polariton condensate using nonresonant excitation}}},
  doi          = {{10.1103/physrevb.91.195308}},
  year         = {{2015}},
}

@article{15864,
  abstract     = {{Starting from the extended Su-Schrieffer-Heeger model, multiband semiconductor Bloch equations are formulated in momentum space and applied to the analysis of the linear optical response of semiconducting carbon nanotubes (SCNTs). This formalism includes the coupling of electron-hole pair excitations between different valence and conduction bands, originating from the electron-hole Coulomb attraction. The influence of these couplings, which are referred to as nondiagonal interband Coulomb interaction (NDI-CI), on the linear excitonic absorption spectra is investigated and discussed for light fields polarized parallel to the tube direction. The results show that the intervalley NDI-CI leads to a significant increase of the band gap and a decrease of the exciton binding energy that results in a blueshift of the lowest-frequency excitonic absorption peak. The strength of these effects depends on the symmetry of the SCNT. Furthermore, for zigzag SCNTs with higher symmetry other nonintervalley NDI-CI terms also affect the spectral positions of excitonic absorption peaks.}},
  author       = {{Liu, Hong and Schumacher, Stefan and Meier, Torsten}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{15}},
  title        = {{{Influence of Coulomb-induced band couplings on linear excitonic absorption spectra of semiconducting carbon nanotubes}}},
  doi          = {{10.1103/physrevb.89.155407}},
  volume       = {{89}},
  year         = {{2014}},
}

@inproceedings{15865,
  author       = {{Lewandowski, P. and Ardizzone, V. and Tse, Y. C. and Kwong, N. H. and Luk, M. H. and Lücke, A. and Abbarchi, M. and Bloch, J. and Baudin, E. and Galopin, E. and Lemaître, A. and Leung, P. T. and Roussignol, Ph. and Binder, R. and Tignon, J. and Schumacher, Stefan}},
  booktitle    = {{Ultrafast Phenomena and Nanophotonics XVIII}},
  editor       = {{Betz, Markus and Elezzabi, Abdulhakem Y. and Song, Jin-Joo and Tsen, Kong-Thon}},
  title        = {{{Formation and control of transverse patterns in a quantum fluid of microcavity polaritons}}},
  doi          = {{10.1117/12.2037174}},
  year         = {{2014}},
}

@article{7485,
  author       = {{Wiebeler, Christian and Bader, Christina A. and Meier, Cedrik and Schumacher, Stefan}},
  issn         = {{1463-9076}},
  journal      = {{Phys. Chem. Chem. Phys.}},
  number       = {{28}},
  pages        = {{14531--14538}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Optical spectrum, perceived color, refractive index, and non-adiabatic dynamics of the photochromic diarylethene CMTE}}},
  doi          = {{10.1039/c3cp55490b}},
  volume       = {{16}},
  year         = {{2014}},
}

@article{15863,
  author       = {{Vollbrecht, Joachim and Bock, Harald and Wiebeler, Christian and Schumacher, Stefan and Kitzerow, Heinz-Siegfried}},
  issn         = {{0947-6539}},
  journal      = {{Chemistry - A European Journal}},
  pages        = {{12026--12031}},
  title        = {{{Polycyclic Aromatic Hydrocarbons Obtained by Lateral Core Extension of Mesogenic Perylenes: Absorption and Optoelectronic Properties}}},
  doi          = {{10.1002/chem.201403287}},
  year         = {{2014}},
}

@article{15861,
  author       = {{Riesen, Hans and Wiebeler, Christian and Schumacher, Stefan}},
  issn         = {{1089-5639}},
  journal      = {{The Journal of Physical Chemistry A}},
  pages        = {{5189--5195}},
  title        = {{{Optical Spectroscopy of Graphene Quantum Dots: The Case of C132}}},
  doi          = {{10.1021/jp502753a}},
  year         = {{2014}},
}

@article{15862,
  author       = {{Wiebeler, Christian and Schumacher, Stefan}},
  issn         = {{1089-5639}},
  journal      = {{The Journal of Physical Chemistry A}},
  pages        = {{7816--7823}},
  title        = {{{Quantum Yields and Reaction Times of Photochromic Diarylethenes: Nonadiabatic Ab Initio Molecular Dynamics for Normal- and Inverse-Type}}},
  doi          = {{10.1021/jp506316w}},
  year         = {{2014}},
}

@article{15867,
  author       = {{Tautz, Raphael and Da Como, Enrico and Wiebeler, Christian and Soavi, Giancarlo and Dumsch, Ines and Fröhlich, Nils and Grancini, Giulia and Allard, Sybille and Scherf, Ullrich and Cerullo, Giulio and Schumacher, Stefan and Feldmann, Jochen}},
  issn         = {{0002-7863}},
  journal      = {{Journal of the American Chemical Society}},
  pages        = {{4282--4290}},
  title        = {{{Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length}}},
  doi          = {{10.1021/ja309252a}},
  year         = {{2013}},
}

@article{15866,
  author       = {{Ardizzone, Vincenzo and Lewandowski, Przemyslaw and Luk, M. H. and Tse, Y. C. and Kwong, N. H. and Lücke, Andreas and Abbarchi, Marco and Baudin, Emmanuel and Galopin, Elisabeth and Bloch, Jacqueline and Lemaitre, Aristide and Leung, P. T. and Roussignol, Philippe and Binder, Rolf and Tignon, Jerome and Schumacher, Stefan}},
  issn         = {{2045-2322}},
  journal      = {{Scientific Reports}},
  title        = {{{Formation and control of Turing patterns in a coherent quantum fluid}}},
  doi          = {{10.1038/srep03016}},
  year         = {{2013}},
}

@article{15868,
  author       = {{Luk, M. H. and Tse, Y. C. and Kwong, N. H. and Leung, P. T. and Lewandowski, Przemyslaw and Binder, R. and Schumacher, Stefan}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  title        = {{{Transverse optical instability patterns in semiconductor microcavities: Polariton scattering and low-intensity all-optical switching}}},
  doi          = {{10.1103/physrevb.87.205307}},
  year         = {{2013}},
}

@article{4353,
  author       = {{Schumacher, Stefan and Zrenner, Artur}},
  issn         = {{0277-786X}},
  journal      = {{ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII}},
  title        = {{{Two-photon physics with quantum-dot biexcitons}}},
  doi          = {{10.1117/12.2004191}},
  year         = {{2013}},
}

@article{15871,
  abstract     = {{We derive a transparent and easy-to-use analytic expression for the selection rules and the optical dipole matrix elements for carbon nanotubes of arbitrary chirality in the presence of axial magnetic fields using a single-orbital π-electron tight-binding model. From this, we calculate the linear absorption spectrum for arbitrary polarization directions of the incident light, providing insight into all optically allowed transition. We show that the transverse absorption peaks can be selectively excited with circularly polarized light and spectrally resolved in an axial magnetic field.}},
  author       = {{Liu, Hong and Schumacher, Stefan and Meier, Torsten}},
  issn         = {{1098-0121}},
  journal      = {{Physical Review B}},
  number       = {{3}},
  title        = {{{Selection rules and linear absorption spectra of carbon nanotubes in axial magnetic fields}}},
  doi          = {{10.1103/physrevb.88.035429}},
  volume       = {{88}},
  year         = {{2013}},
}

@article{15870,
  author       = {{Ling, Sanliang and Schumacher, Stefan and Galbraith, Ian and Paterson, Martin J.}},
  issn         = {{1932-7447}},
  journal      = {{The Journal of Physical Chemistry C}},
  pages        = {{6889--6895}},
  title        = {{{Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes}}},
  doi          = {{10.1021/jp401359a}},
  year         = {{2013}},
}

@article{62927,
  abstract     = {{<jats:p>To model intermolecular excitation transfer between organic chromophores in the framework of Förster theory, the interaction matrix element is needed for all relative orientations and separations of chromophores. Simulations of extended multi-chromophoric systems thus require a fast but reliable approximation scheme to calculate these dipole interactions. By means of a comparative study of the dipole approximation with quantum chemistry, we demonstrate that the usual line-dipole theory, while suitable for short molecules, breaks down for longer molecules with inter-molecular separations similar to or smaller than the length of the interacting chromophores; a limit that is typically found in conjugated polymer thin films. As a remedy, we propose an improved way of distributing the sub-dipole moments within a line which provides results in very good agreement with the quantum chemistry, and is still simple enough to be used in large scale simulations.</jats:p>}},
  author       = {{Denis, Jean-Christophe and Schumacher, Stefan and Galbraith, Ian}},
  issn         = {{0021-9606}},
  journal      = {{The Journal of Chemical Physics}},
  number       = {{22}},
  publisher    = {{AIP Publishing}},
  title        = {{{Quantitative description of interactions between linear organic chromophores}}},
  doi          = {{10.1063/1.4768244}},
  volume       = {{137}},
  year         = {{2012}},
}

@article{15869,
  author       = {{Wiebeler, Christian and Tautz, Raphael and Feldmann, Jochen and von Hauff, Elizabeth and Da Como, Enrico and Schumacher, Stefan}},
  issn         = {{1520-6106}},
  journal      = {{The Journal of Physical Chemistry B}},
  pages        = {{4454--4460}},
  title        = {{{Spectral Signatures of Polarons in Conjugated Co-polymers}}},
  doi          = {{10.1021/jp3084869}},
  year         = {{2012}},
}

@article{15872,
  author       = {{Montgomery, Neil A. and Hedley, Gordon J. and Ruseckas, Arvydas and Denis, Jean-Christophe and Schumacher, Stefan and Kanibolotsky, Alexander L. and Skabara, Peter J. and Galbraith, Ian and Turnbull, Graham A. and Samuel, Ifor D. W.}},
  issn         = {{1463-9076}},
  journal      = {{Physical Chemistry Chemical Physics}},
  title        = {{{Dynamics of fluorescence depolarisation in star-shaped oligofluorene-truxene molecules}}},
  doi          = {{10.1039/c2cp24141b}},
  year         = {{2012}},
}

@article{3974,
  abstract     = {{We study the quantum properties and statistics of photons emitted by a quantum-dot biexciton inside a cavity. In the biexciton-exciton cascade, fine-structure splitting between exciton levels degrades polarization-entanglement for the emitted pair of photons. However, here we show that the polarization-entanglement can be preserved in such a system through simultaneous emission of two degenerate photons into cavity modes tuned to half the biexciton energy. Based on detailed theoretical calculations for realistic quantum-dot and cavity parameters, we quantify the degree of achievable entanglement.}},
  author       = {{Schumacher, Stefan and Förstner, Jens and Zrenner, Artur and Florian, Matthias and Gies, Christopher and Gartner, Paul and Jahnke, Frank}},
  issn         = {{1094-4087}},
  journal      = {{Optics Express}},
  keywords     = {{tet_topic_qd}},
  number       = {{5}},
  pages        = {{5335--5342}},
  publisher    = {{OSA}},
  title        = {{{Cavity-assisted emission of polarization-entangled photons from biexcitons in quantum dots with fine-structure splitting}}},
  doi          = {{10.1364/oe.20.005335}},
  volume       = {{20}},
  year         = {{2012}},
}

@article{62929,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Two slightly different, efficient tight‐binding (TB) models for the description of the electronic properties of nitride‐based semiconductor quantum dots (QDs) have been developed and applied to the calculation of the electronic one‐particle spectrum of these structures. Using these one‐particle QD‐states, dipole and Coulomb matrix elements can be calculated, from which the optical properties of these systems can be obtained. These TB calculations have been performed for nitride‐based QDs with a cubic zincblende structure and those with a wurtzite crystal structure. In this paper, we discuss the general methodology used and the results obtained for the electronic one‐particle states and energies, for the dipole and Coulomb matrix elements, and for the excitonic optical emission and absorption spectra.</jats:p>}},
  author       = {{Schulz, S. and Mourad, D. and Schumacher, Stefan and Czycholl, G.}},
  issn         = {{0370-1972}},
  journal      = {{physica status solidi (b)}},
  number       = {{8}},
  pages        = {{1853--1866}},
  publisher    = {{Wiley}},
  title        = {{{Tight‐binding model for the electronic and optical properties of nitride‐based quantum dots}}},
  doi          = {{10.1002/pssb.201147158}},
  volume       = {{248}},
  year         = {{2011}},
}

@article{62928,
  author       = {{Montgomery, Neil A. and Denis, Jean-Christophe and Schumacher, Stefan and Ruseckas, Arvydas and Skabara, Peter J. and Kanibolotsky, Alexander and Paterson, Martin J. and Galbraith, Ian and Turnbull, Graham A. and Samuel, Ifor D. W.}},
  issn         = {{1089-5639}},
  journal      = {{The Journal of Physical Chemistry A}},
  number       = {{14}},
  pages        = {{2913--2919}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Optical Excitations in Star-Shaped Fluorene Molecules}}},
  doi          = {{10.1021/jp1109042}},
  volume       = {{115}},
  year         = {{2011}},
}