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  • Fast transport of Bose-Einstein condensates 
    Torrontegui, E.; Chen, Xi; Modugno, M.; Schmidt, S.; Ruschhaupt, A.; Muga, J. G. (Bristol : IOP Publishing Ltd., 2012)
    We propose an inverse method to accelerate without final excitation the adiabatic transport of a Bose-Einstein condensate. The method is based on a partial extension of the Lewis-Riesenfeld invariants and provides transport ...
  • Fluctuations in catalytic surface reactions 
    Imbihl, R. (Bristol : IOP Publishing Ltd., 2003)
    The internal reaction-induced fluctuations which occur in catalytic CO oxidation on a Pt field emitter tip have been studied using field electron microscopy (FEM) as a spatially resolving method. The structurally heterogeneous ...
  • Freezing and melting transitions of liquids in mesopores with ink-bottle geometry 
    Khokhlov, Alexey; Valiullin, Rustem; Kaerger, Joerg; Steinbach, Frank; Feldhoff, Armin (Bristol : IOP Publishing Ltd., 2007)
    Freezing and melting behavior of nitrobenzene in mesoporous silicon with different pore size and with different porous structure have been studied using H-1 NMR cryoporometry. With the bulk phase surrounding the porous ...
  • Gravitational wave detectors 
    Aufmuth, Peter; Danzmann, Karsten (Bristol : Institute of Physics Publishing, 2005)
    The existence of gravitational radiation is a prediction of Einstein's general theory of relativity. Gravitational waves are perturbations in the curvature of spacetime caused by accelerated masses. Since the 1960s ...
  • Height analysis of amorphous and crystalline ice structures on Cu(111) in scanning tunneling microscopy 
    Mehlhorn, Michael; Morgenstern, Karina (Bristol : IOP Publishing Ltd., 2009)
    Scanning tunneling microscopy imaging of amorphous and crystalline D2O ice on Cu(111) is discussed with respect to the apparent and the real heights of these structures above the metal surface. The apparent height increases ...
  • High-aspect 3D two-photon polymerization structuring with widened objective working range (WOW-2PP) 
    Obata, Kotaro; El-Tamer, Ayman; Koch, Lothar; Hinze, Ulf; Chichkov, Boris (London : Springer Nature, 2013)
    We developed a novel two-photon polymerization (2PP) configuration for fabrication of high-aspect three-dimensional (3D) structures, with an overall height larger than working distance of the microscope objective used for ...
  • High-order harmonic generation directly from a filament 
    Steingrube, D.S.; Schulz, E.; Binhammer, Thomas; Gaarde, M.B.; Couairon, A.; Morgner, Uwe; Kovacev, M. (Bristol : IOP Publishing Ltd., 2011)
    The synthesis of isolated attosecond pulses (IAPs) in the extreme ultraviolet (XUV) spectral region has opened up the shortest time scales for timeresolved studies. It relies on the generation of high-order harmonics (HHG) ...
  • An improved synthesis of 4-chlorocoumarin-3-sulfonyl chloride and its reactions with different bidentate nucleophiles to give pyrido[1′, 2′:2,3]- and thiazino[3′,2′:2,3]-1,2,4-thiadiazino[6,5-c] benzopyran-6-one 7,7-dioxides 
    Jashari, Ahmed; Hey-Hawkins, Evamarie; Mikhova, Bozhana; Draeger, Gerald; Popovski, Emil (Basel : MDPI AG, 2007)
    An improved synthetic method affording 4-chlorocoumarin-3-sulfonyl chloride (4) in very good yield (ca. 85 %) is reported. This compound was reacted with various bidentate nucleophiles such as 2-aminopyridines and ...
  • In vivo corrosion of two novel magnesium alloys ZEK100 and AX30 and their mechanical suitability as biodegradable implants 
    Huehnerschulte, Tim Andreas; Angrisani, Nina; Rittershaus, Dina; Bormann, Dirk; Windhagen, Henning; Meyer-Lindenberg, Andrea (Basel : MDPI AG, 2011)
    In magnesium alloys, the components used modify the alloy properties. For magnesium implants in contact with bone, rare earths alloys are commonly examined. These were shown to have a higher corrosion resistance than other ...
  • In vivo degradation behavior of the magnesium alloy land442 in rabbit tibiae 
    Ullmann, Berit; Reifenrath, Janin; Dziuba, Dina; Seitz, Jan-Marten; Bormann, Dirk; Meyer-Lindenberg, Andrea (Basel : MDPI AG, 2011)
    In former studies the magnesium alloy LAE442 showed promising in vivo degradation behavior and biocompatibility. However, reproducibility might be enhanced by replacement of the rare earth composition metal "E" by only a ...
  • The inhomogeneous Kibble-Zurek mechanism: Vortex nucleation during Bose-Einstein condensation 
    Del Campo, A.; Retzker, A.; Plenio, Martin B. (Bristol : IOP Publishing Ltd., 2011)
    The Kibble-Zurek mechanism is applied to the spontaneous formation of vortices in a harmonically trapped thermal gas following a temperature quench through the critical value for Bose-Einstein condensation. Whereas in the ...
  • An international comparison of individual tree detection and extraction using airborne laser scanning 
    Kaartinen, Harri; Hyyppä, Juha; Yu, Xiaowei; Vastaranta, Mikko; Hyyppä, Hannu; Kukko, Antero; Holopainen, Markus; Heipke, Christian; Hirschmugl, Manuela; Morsdorf, Felix; Næsset, Erik; Pitkänen, Juho; Popescu, Sorin; Solberg, Svein; Wolf, Bern Michael; Wu, Jee-Cheng (Basel : MDPI AG, 2012)
    The objective of the "Tree Extraction" project organized by EuroSDR (European Spatial data Research) and ISPRS (International Society of Photogrammetry and Remote Sensing) was to evaluate the quality, accuracy, and feasibility ...
  • Investigation of site-specific wind field parameters and their effect on loads of offshore wind turbines 
    Ernst, Benedikt; Seume, Jörg R. (Basel : MDPI AG, 2012)
    The main contributing factors to unsteady loading of Offshore Wind Turbines (OWT) are wind shear, turbulence, and waves. In the present paper, the turbulence intensity and the wind shear exponent are investigated. Using ...
  • Landau levels of cold atoms in non-Abelian gauge fields 
    Jacob, A.; Ohberg, P.; Juzeliunas, G.; Santos, Luis (Bristol : IOP Publishing Ltd., 2008)
    The Landau levels of cold atomic gases in non-Abelian gauge fields are analyzed. In particular we identify effects on the energy spectrum and density distribution which are purely due to the non-Abelian character of the ...
  • Laser fabrication of 3D gelatin scaffolds for the generation of bioartificial tissues 
    Ovsianikov, Aleksandr; Deiwick, Andrea; Van Vlierberghe, Sandra; Pflaum, Michael; Wilhelmi, Mathias; Dubruel, Peter; Chichkov, Boris (Basel : MDPI AG, 2010)
    In the present work, the two-photon polymerization (2PP) technique was applied to develop precisely defined biodegradable 3D tissue engineering scaffolds. The scaffolds were fabricated via photopolymerization of gelatin ...
  • Laser interferometry with translucent and absorbing mechanical oscillators 
    Friedrich, Daniel; Kaufer, Henning; Westphal, Tobias; Yamamoto, K.; Sawadsky, Andreas; Ya Khalili, F.; Danilishin, S.L.; Goßler, Stefan; Danzmann, Karsten; Schnabel, Roman (Bristol : IOP Publishing Ltd., 2011)
    The sensitivity of laser interferometers can be pushed into regimes that enable the direct observation of the quantum behaviour of mechanical oscillators. In the past, membranes with subwavelength thickness (thin films) ...
  • Layer transfer from chemically etched 150 mm porous si substrates 
    Terheiden, Barbara; Hensen, Jan; Wolf, Andreas; Horbelt, Renate; Plagwitz, Heiko; Brendel, Rolf (Basel : MDPI AG, 2010)
    We demonstrate for the first time the successful layer transfer of an epitaxially grown monocrystalline Si film from a purely chemically etched porous Si substrate of 150 mm diameter to a glass carrier. The surface ...
  • Limits of ZnO electrodeposition in mesoporous tin doped indium oxide films in view of application in dye-sensitized solar cells 
    Dunkel, Christian; Graberg, Till von; Smarsly, Bernd M.; Oekermann, Torsten; Wark, Michael (Basel : MDPI AG, 2014)
    Well-ordered 3D mesoporous indium tin oxide (ITO) films obtained by a templated sol-gel route are discussed as conductive porous current collectors. This paper explores the use of such films modified by electrochemical ...
  • Long-range interaction of copper adatoms and copper dimers on Ag(111) 
    Morgenstern, Karina; Rieder, Karl-Heinz (Bristol : IOP Publishing Ltd., 2005)
    Formation and motion of copper adatoms and addimers on Ag( 1 1 1) are investigated with low-temperature scanning tunnelling microscopy between 6 and 25 K. Adatoms move between fcc and hcp sites with a strong preference for ...
  • Low-temperature hysteresis in the field effect of bilayer graphene 
    Barthold, P.; Lüdtke, T.; Schmidt, H.; Haug, Rolf J. (Bristol : IOP Publishing Ltd., 2011)
    Hysteresis in the field effect of bilayer graphene is observed at a low temperature. We attribute this effect to charge traps in the substrate. When the sweep rate of the back-gate voltage is increased to higher values, ...