@article{684, author = {{Walter, Felicitas and Li, Guixin and Meier, Cedrik and Zhang, Shuang and Zentgraf, Thomas}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{5}}, pages = {{3171--3175}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Ultrathin Nonlinear Metasurface for Optical Image Encoding}}}, doi = {{10.1021/acs.nanolett.7b00676}}, volume = {{17}}, year = {{2017}}, } @article{24211, abstract = {{A fully-differential receiver structure for fiber links is presented, in which the photodiode (PD) is DC-coupled to the transimpedance amplifier (TIA) and biased through the feedback resistors. The biasing voltage is defined by the internal structure of the input stage. Different options are suggested that allow to adjust PD biasing. Multiple architecture variants are proposed, that were implemented in 0.25μm SiGe BiCMOS technology. Initial measurement results are reported, proving the feasibility of the concept. A 25Gbps hybrid receiver designed to comply with a specific standard is also presented, featuring large horizontal eye opening of 800mV, OMA of -15dBm at BER of 10 -6 and power dissipation of 330mW from a single 3.3V power supply.}}, author = {{Gudyriev, Sergiy and Scheytt, Christoph and Yan, Lei and Christian, Meuer and Zimmermann, Lars}}, issn = {{ 2378-590X}}, journal = {{IEEE Bipolar/BiCMOS Circuits and Technology Meeting}}, title = {{{Fully-differential, DC-coupled, Self-biased, Monolithically-integrated Optical Receiver in 0.25μm Photonic BiCMOS Technology for Multi-channel Fiber Links}}}, doi = {{10.1109/BCTM.2017.8112922}}, year = {{2017}}, } @inproceedings{24226, author = {{Scheytt, Christoph}}, booktitle = {{W3+Fair on Optoelectronics, Electronics, and Mechanics}}, title = {{{Silicon Photonics Microsystems for Communications and Sensing}}}, year = {{2017}}, } @article{3997, abstract = {{Switchable two dimensional liquid crystal diffraction gratings are promising can- didates in beam steering devices, multiplexers and holographic displays. For these areas of applications a high degree of integration in optical systems is much sought-after. In the context of diffraction gratings this means that the angle of diffraction should be rather high, which typically poses a problem as the fabrication of small grating periods is challenging. In this paper, we propose the use of nanosphere lithography (NSL) for the fabrication of two-dimensionally structured electrodes with a periodicity of a few micrometers. NSL is based on the self-assembly of micro- or nanometer sized spheres into monolayers. It allows for easy substrate structuring on wafer scale. The manufactured electrode is combined with a liquid crystalline polymer-stabilized blue phase, which facilitates sub-millisecond electrical switching of the diffraction efficiency at adiffractionangle of 21.4°.}}, author = {{Wahle, M. and Brassat, Katharina and Ebel, J. and Bürger, Julius and Lindner, Jörg and Kitzerow, Heinz-Siegfried}}, journal = {{Optics Express 25}}, number = {{19}}, pages = {{22608--22619}}, title = {{{Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography}}}, doi = {{10.1364/OE.25.022607}}, volume = {{25}}, year = {{2017}}, } @article{3434, abstract = {{In this work we study the impact of ion implantation on the nonlinear optical properties in MgO:LiNbO3 via confocal second-harmonic microscopy. In detail, we spatially characterize the nonlinear susceptibility in carbon-ion implanted lithium niobate planar waveguides for different implantation energies and fluences, as well as the effect of annealing. In a further step, a computational simulation is used to calculate the implantation range of carbon-ions and the corresponding defect density distribution. A comparison between the simulation and the experimental data indicates that the depth profile of the second-order effective nonlinear coefficient is directly connected to the defect density that is induced by the ion irradiation. Furthermore it can be demonstrated that the annealing treatment partially recovers the second-order optical susceptibility.}}, author = {{Spychala, Kai J. and Berth, Gerhard and Widhalm, Alex and Rüsing, Michael and Wang, Lei and Sanna, Simone and Zrenner, Artur}}, issn = {{1094-4087}}, journal = {{OPTICS EXPRESS}}, number = {{18}}, pages = {{21444----21453}}, title = {{{Impact of carbon-ion implantation on the nonlinear optical susceptibility of LiNbO3}}}, doi = {{10.1364/OE.25.021444}}, year = {{2017}}, } @article{39665, author = {{Knust, Steffen and Wahle, Markus and Kitzerow, Heinz-Siegfried}}, issn = {{1520-6106}}, journal = {{The Journal of Physical Chemistry B}}, keywords = {{Materials Chemistry, Surfaces, Coatings and Films, Physical and Theoretical Chemistry}}, number = {{19}}, pages = {{5110--5115}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Ferroelectric Liquid Crystals in Microcapillaries: Observation of Different Electro-optic Switching Mechanisms}}}, doi = {{10.1021/acs.jpcb.7b00307}}, volume = {{121}}, year = {{2017}}, } @article{39663, author = {{Vollbrecht, Joachim and Blazy, Simon and Dierks, Philipp and Peurifoy, Samuel and Bock, Harald and Kitzerow, Heinz-Siegfried}}, issn = {{1439-4235}}, journal = {{ChemPhysChem}}, keywords = {{Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics}}, number = {{15}}, pages = {{2024--2032}}, publisher = {{Wiley}}, title = {{{Electroluminescent and Optoelectronic Properties of OLEDs with Bay-Extended, Distorted Perylene Esters as Emitter Materials}}}, doi = {{10.1002/cphc.201700502}}, volume = {{18}}, year = {{2017}}, } @inproceedings{4002, author = {{Kitzerow, Heinz-Siegfried and Lindner, Jörg}}, location = {{Barcelona (Spain)}}, title = {{{Plasmonic nanostructures: spectroscopy and electron microscopy}}}, year = {{2017}}, } @inproceedings{39660, author = {{Atorf, B. and Rasouli, H. and Rennerich, R. and Muhlenbernd, H. and Reineke, B. J. and Zentgraf, T. and Kitzerow, Heinz-Siegfried}}, booktitle = {{2017 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials)}}, publisher = {{IEEE}}, title = {{{Tunable plasmonic structures utilizing liquid crystals}}}, doi = {{10.1109/metamaterials.2017.8107880}}, year = {{2017}}, } @misc{40638, author = {{Wilkes, D. and Wittek, M. and Hoischen, A. and Kitzerow, Heinz-Siegfried and Nordendorf, G. and Schmidtke, J.}}, title = {{{Liquid crystal medium and liquid crystal display}}}, year = {{2017}}, } @article{13906, author = {{Sharapova, Polina and Luo, Kai Hong and Herrmann, Harald and Reichelt, Matthias and Meier, Torsten and Silberhorn, Christine}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, number = {{12}}, publisher = {{IOP Publishing}}, title = {{{Toolbox for the design of LiNbO3-based passive and active integrated quantum circuits}}}, doi = {{10.1088/1367-2630/aa9033}}, volume = {{19}}, year = {{2017}}, } @article{13905, author = {{Sharapova, Polina and Luo, Kai Hong and Herrmann, Harald and Reichelt, Matthias and Silberhorn, Christine and Meier, Torsten}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, number = {{4}}, pages = {{043857}}, publisher = {{American Physical Society}}, title = {{{Modified two-photon interference achieved by the manipulation of entanglement}}}, doi = {{10.1103/physreva.96.043857}}, volume = {{96}}, year = {{2017}}, } @article{26061, author = {{Sharapova, Polina and Luo, Kai Hong and Herrmann, Harald and Reichelt, Matthias and Meier, Torsten and Silberhorn, Christine}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, number = {{12}}, publisher = {{IOP Publishing}}, title = {{{Toolbox for the design of LiNbO3-based passive and active integrated quantum circuits}}}, doi = {{10.1088/1367-2630/aa9033}}, volume = {{19}}, year = {{2017}}, } @inproceedings{40635, author = {{Meyers, Th. and Vollbrecht, J. and Vidor, F. and Reker, J. and Kitzerow, Heinz-Siegfried and Hilleringmann, Ulrich}}, booktitle = {{IEEE Xplore, MikroSystemTechnik 2017}}, isbn = {{978-3-8007-4491-6}}, location = {{Munich}}, pages = {{1--4}}, publisher = {{IEEE}}, title = {{{Organic Thin-Film Transistors for AMOLED Applications}}}, year = {{2017}}, } @inproceedings{13903, author = {{Höpker, Jan Philipp and Bartnick, Moritz and Meyer-Scott, Evan and Thiele, Frederik and Meier, Torsten and Bartley, Tim and Krapick, Stephan and Montaut, Nicola M. and Santandrea, Matteo and Herrmann, Harald and Lengeling, Sebastian and Ricken, Raimund and Quiring, Viktor and Lita, Adriana E. and Verma, Varun B. and Gerrits, Thomas and Nam, Sae Woo and Silberhorn, Christine}}, booktitle = {{Quantum Photonic Devices}}, editor = {{Agio, Mario and Srinivasan, Kartik and Soci, Cesare}}, isbn = {{9781510611733}}, pages = {{1035809}}, publisher = {{SPIE}}, title = {{{Towards integrated superconducting detectors on lithium niobate waveguides}}}, doi = {{10.1117/12.2273388}}, volume = {{10358}}, year = {{2017}}, } @inproceedings{13334, author = {{Podzimski, Reinold and Duc, Huynh Thanh and Meier, Torsten}}, booktitle = {{Ultrafast Phenomena and Nanophotonics XXI}}, editor = {{Betz, Markus and Elezzabi, Abdulhakem Y.}}, publisher = {{SPIE}}, title = {{{A microscopic approach to ultrafast near band gap photocurrents in bulk semiconductors}}}, doi = {{10.1117/12.2250299}}, volume = {{10102}}, year = {{2017}}, } @article{13908, author = {{Poltavtsev, S. V. and Reichelt, Matthias and Akimov, I. A. and Karczewski, G. and Wiater, M. and Wojtowicz, T. and Yakovlev, D. R. and Meier, Torsten and Bayer, M.}}, issn = {{2469-9950}}, journal = {{Physical Review B}}, number = {{7}}, title = {{{Damping of Rabi oscillations in intensity-dependent photon echoes from exciton complexes in a CdTe/(Cd,Mg)Te single quantum well}}}, doi = {{10.1103/physrevb.96.075306}}, volume = {{96}}, year = {{2017}}, } @article{13288, author = {{Driben, R. and Konotop, V. V. and Meier, Torsten and Yulin, A. V.}}, issn = {{2045-2322}}, journal = {{Scientific Reports}}, number = {{1}}, title = {{{Bloch oscillations sustained by nonlinearity}}}, doi = {{10.1038/s41598-017-03400-w}}, volume = {{7}}, year = {{2017}}, } @article{24212, abstract = {{A hybrid multi-channel receiver featuring fully-differential transimpedance input stages for 25Gbps data rate per channel is presented along with measurement results focusing on the channel-to-channel interference and sensitivity. OMA of -16dBm at a BER of 10−4 is estimated at the photodiode for all channels. Each channel dissipates 330mW of power provided from a single 3.3V supply voltage.}}, author = {{Gudyriev, Sergiy and Scheytt, Christoph and Kress, Christian and Yan, Lei and Christian, Meuer and Zimmermann, Lars}}, isbn = {{978-1-943580-33-0}}, journal = {{OSA Frontiers in Optics + Laser Science}}, title = {{{Fully-Differential, Hybrid, Multi-channel 4x25Gbps Direct Direction Receiver in 0.25\textmum BiCMOS SiGe Technology}}}, doi = {{https://doi.org/10.1364/FIO.2017.FM3A.3}}, year = {{2017}}, } @article{10023, abstract = {{We perform a comprehensive theoretical study of the structural and electronic properties of potassium niobate (KNbO3) in the cubic, tetragonal, orthorhombic, monoclinic, and rhombohedral phase, based on density-functional theory. The influence of different parametrizations of the exchange-correlation functional on the investigated properties is analyzed in detail, and the results are compared to available experimental data. We argue that the PBEsol and AM05 generalized gradient approximations as well as the RTPSS meta-generalized gradient approximation yield consistently accurate structural data for both the external and internal degrees of freedom and are overall superior to the local-density approximation or other conventional generalized gradient approximations for the structural characterization of KNbO3. Band-structure calculations using a HSE-type hybrid functional further indicate significant near degeneracies of band-edge states in all phases which are expected to be relevant for the optical response of the material.}}, author = {{Schmidt, Falko and Landmann, Marc and Rauls, Eva and Argiolas, Nicola and Sanna, Simone and Schmidt, Wolf Gero and Schindlmayr, Arno}}, issn = {{1687-8442}}, journal = {{Advances in Materials Science and Engineering}}, publisher = {{Hindawi}}, title = {{{Consistent atomic geometries and electronic structure of five phases of potassium niobate from density-functional theory}}}, doi = {{10.1155/2017/3981317}}, volume = {{2017}}, year = {{2017}}, }