Itskos, G., Heliotis, G., Lagoudakis, P.G., Lupton, J., Barradas, N.P., Alves, E., ...
We investigate interactions between Mott-Wannier (MW) and Frenkel excitons in a family of hybrid structures consisting of thin organic (polyfluorene) films placed in close proximity (systematically...
Room-temperature exciton storage in elongated semiconductor nanocrystals (2007)
Kraus, R.M., Lagoudakis, P.G., Rogach, A.L., Talapin, D.V., Weller, H., Lupton, J.M., ...
The excited state of colloidal nanoheterostructures consisting of a spherical CdSe nanocrystal with an epitaxially attached CdS rod can be perturbed effectively by electric fields. Field-induced...
Room-temperature exciton storage in elongated semiconductor nanocrystals (2007)
Kraus, R.M., Lagoudakis, P.G., Rogach, A.L., Talapin, D.V., Weller, H., Lupton, J.M., ...
The excited state of colloidal nanoheterostructures consisting of a spherical CdSe nanocrystal with an epitaxially attached CdS rod can be perturbed effectively by electric fields. Field-induced...
Room-temperature exciton storage in elongated semiconductor nanocrystals (2007)
Kraus, R.M., Lagoudakis, P.G., Rogach, A.L., Talapin, D.V., Weller, H., Lupton, J.M., ...
The excited state of colloidal nanoheterostructures consisting of a spherical CdSe nanocrystal with an epitaxially attached CdS rod can be perturbed effectively by electric fields. Field-induced...
Evidence for temperature tndependent triplet diffusion in a ladder type conjugated polymer (2006)
Reufer, M., Lagoudakis, P.G., Walter, M.J., Lupton, J.M., Feldmann, J., Scherf, U.
We study the temperature dependence of triplet formation and decay by considering the phosphorescence dynamics in a prototypical conjugated polymer matrix. The dynamics of triplet formation as a...
Non-radiative energy transfer from an inorganic quantum well to a polymer overlayer (2006)
Itskos, G., Heliotis, G., Lagoudakis, P.G., Feldmann, J., Dawson, M.D., Watson, I.M., ...
This paper is about non-radiative energy transfer from an inorganic quantum well to a polymer overlayer. It was presented at the International Conference on the Physics of Semiconductors in 2006.
Efficient Forster coupling between inorganic and organic excitons (2006)
Heliotis, G., Itskos, G., Lagoudakis, P.G., Belton, C., Dawson, M.D., Watson, I.M., ...
This paper is about efficient Forster coupling between inorganic and organic excitons. It was presented at the international conference on synthetic materials in 2006.
Watson, I.M., Heliotis, G., Itskos, G., Lagoudakis, P.G., Feldmann, J., Murray, R., ...
This paper is about non-radiative energy transfer in hybrid structures combining InGaN single QWs and light-emitting polymers. It was presented at the sixth international symposium on blue laser and...
Muller, J., Lupton, J.M., Lagoudakis, P.G., Schindler, F., Koeppe, R., Rogach, A.L., ...
We explore two routes to wave function engineering in elongated colloidal CdSe/CdS quantum dots, providing deep insight into the intrinsic physics of these low-dimensional heterostructures. Varying...
Müller, J., Lupton, J.M., Lagoudakis, P.G., Schindler, F., Koeppe, R., Rogach, A.L., ...
We explore two routes to wave function engineering in elongated colloidal CdSe/CdS quantum dots, providing deep insight into the intrinsic physics of these low-dimensional heterostructures. Varying...
Interplay between auger and ionization processes in nanocrystal quantum dots (2005)
Kraus, R.M., Lagoudakis, P.G., Muller, J., Rogach, A.L., Lupton, J.M., Feldmann, J., ...
We study the interplay between Auger effects and ionization processes in the limit of strong electronic confinement in core/shell CdSe/ZnS semiconductor nanocrystal quantum dots. Spectrally resolved...
Second harmonic generation enhancement in lithium niobate micro-tips (2005)
Mailis, S., Lagoudakis, P.G., Paturzo, M., Mills, J.D., Feldmann, J., Eason, R.W.
We have observed a substantial enhancement (40 fold) of the non-phase-matched second harmonic generation efficiency in microfabricated ultra-sharp, lithium niobate micro-tip arrays. The fabrication...
Müller, J., Lupton, J.M., Lagoudakis, P.G., Schindler, F., Koeppe, R., Rogach, A.L., ...
We explore two routes to wave function engineering in elongated colloidal CdSe/CdS quantum dots, providing deep insight into the intrinsic physics of these low-dimensional heterostructures. Varying...
Feldmann, J., Menasche, G., Callebaut, I., Minard-Colin, V., Bader-Meunier, B., L. Le, Clainche, ...
Mutations in the perforin gene cause familial hemophagocytic lymphohistiocytosis (FHL). The first symptoms of FHL are usually intractable fever, hepatosplenomegaly, and pancytopenia. Most FHL...
Counting chromophores in conjugated polymers (2005)
Schindler,F., Jacob,J., Grimsdale,Andrew C., Scherf,Ullrich, Müllen,Klaus, Lupton,J. M., ...
Counting chromophores in conjugated polymers (2005)
Schindler, F., Jacob, J., Grimsdale, Andrew C., Scherf, Ullrich, Müllen, Klaus, Lupton, J. M., ...
Hansen, H.R., Pickford, R., Thomas-Oates, J., Jaspars, M., Feldmann, J.
Arsenic in sheep's clothing: the first characterization of a thio-organoarsenate compound (2-dimethylarsinothioyl acetic acid) isolated from a biological source (a rare breed of seaweed-eating sheep;...
Experimental evidence for exciton scaling effects in self-assembled molecular wires (2004)
Lagoudakis, P.G., De Souza, M.M., Schindler, F., Lupton, J.M., Feldmann, J., Wenus, J., ...
Resonant Rayleigh scattering from self-assembled one-dimensional molecular J-aggregate wires reveals a distinct dependence of the exciton energy on the width of lateral extension. For the J...
Polymeric photonic crystal lasers (2004)
Forberich, K., Riechel, S., Pereira, S., Gombert, A., Busch, K., Feldmann, J., ...
Low-threshold polymeric distributed feedback lasers with metallic contacts (2004)
Reufer, M., Riechel, S., Lupton, J.M., Feldmann, J., Lemmer, U., Schneider, D., ...
Optical losses in waveguides comprising metallic contacts are thought to be a major hurdle to the realization of organic laser diodes. We demonstrate here that careful tuning of the waveguide mode in...
Optical properties of planar metallo-dielectric photonic crystals (2004)
Christ, A., Linden, S., Zentgraf, T., Schubert, K., Nau, D., Tikhodeev, S. G., ...
Plasmon emission in photoexcited gold nanoparticles (2004)
Dulkeith, E., Niedereichholz, T., Klar, T. A., Feldmann, J., Von Plessen, G., Gittins, D. I., ...
Experimental evidence for exciton scaling effects in self-assembled molecular wires (2004)
Lagoudakis, P.G., De Souza, M.M., Schindler, F., Lupton, J.M., Feldmann, J., Wenus, J., ...
Resonant Rayleigh scattering from self-assembled one-dimensional molecular J-aggregate wires reveals a distinct dependence of the exciton energy on the width of lateral extension. For the J...
Wehmeier, S., Ellam, R.M., Feldmann, J.
Isotope ratio measurements of organometal(loid) species are of interest in order to determine isotope fractionation of the heavy metal(loid)s which can elucidate their pathways in the environment. We...
Wehmeier, S., Ellam, R., Feldmann, J.
Isotope ratio measurements of organometal(loid) species are of interest in order to determine isotope fractionation of the heavy metal(loid)s which can elucidate their pathways in the environment. We...
Arsenic accumulation and metabolism in rice (Oryza Sativa L). (2002)
Abedin, M.J., Cresser, M.S., Meharg, A.A., Feldmann, J., Cotter-Howells, J.
The use of arsenic (As) contaminated groundwater for irrigation of crops has resulted in elevated concentrations of arsenic in agricultural soils in Bangladesh, West Bengal (India), and elsewhere....
Langdon, Caroline J., Meharg, Andrew A., Feldmann, J., Balgar, T., Charnock , John, Farqhar, Morag, ...
In this study, the earthworm, Aporrectodea longa, was used as a model soil organism to assess the impact of ageing upon the bioavailability of polycyclic aromatic hydrocarbons (PAHs) in soil. The...
Very compact tunable solid-state laser utilizing a thin-film organic semiconductor (2001)
Riechel, S., Lemmer, U., Feldmann, J., Berleb, S., Mückl, A.G., Brütting, W., ...
Laser Modes in Organic Solid-State Distributed Feedback Lasers (2000)
Riechel, S., Lemmer, U., Feldmann, J., Benstem, T., Kowalsky, W., Scherf, Ullrich, ...
Laser mit einem organischen Emittermaterial und verteilter Rueckkopplung (1999)
Feldmann, J., Haugeneder, A., Spirkl, W., Wittwer, V., Hilmer, M., Lemmer, U., ...
Nonlinear Emission and Recombination in Conjugated Polymer Waveguides (1999)
Haugeneder, A., Neges, M., Kallinger, C., Spirkl, W., Lemmer, U., Feldmann, J., ...
Self-Assembly of Functionalized Fullerenes (1999)
Hong, H., Davidov, D., Kallinger, C., Lemmer, U., Feldmann, J., Harth, E., ...
Control of Electron Transfer in Conjugated Polymer Fullerene Heterostructures (1999)
Kallinger, C., Hauder, M., Haugeneder, A., Lemmer, U., Spirkl, W., Feldmann, J., ...
MICROMECHANICS LITERATURE SURVEY. (1998)
This literature survey tabulates, reviews, and critically analyzes micromechanics and structural behavior information on fiber-reinforced composites. The subject matter includes elastic constants,...
Effect of Zn doping and oxygen stoichiometry on the thermal conductivity of YBa2Cu3O7-delta (1998)
Feldmann, J, Cloots, R, Ausloos, M
The temperature dependence of the electronic contribution kappa(e) to the thermal conductivity of a two-dimensional superconductor with Van Hove singularities (VHSs) in the density of states is...
Mechanism of Gain Narrowing in Conjugated Polymer Thin Films (1998)
Haugeneder, A., Hilmer, M., Kallinger, C., Perner, M., Spirkl, W., Lemmer, U., ...
Coherent exciton dynamics as a function of quantum-well number (1996)
Weber, D., Feldmann, J., Göbel, E.O., Stroucken, T., Knorr, A., Koch, S.W., ...
We have investigated the coherent dynamics of excitons in a single, a double, and a quintuple quantum-well structure under resonant excitation. In pump and probe experiments on the quintuple quantum...
Photolumineszenz-Untersuchung an InGaAs Quantenpunkten (1996)
Sandmann, J., Grosse, S., Feldmann, J., Lipsanen, Harri, Sopanen, Markku, Tulkki, J., ...
Verhandlungen der Deutschen Physikalischen gesellschaft, Fruehjarstagung Regensburg 1996. Festkoerperphysik, 1428
Grosse, S., Sandmann, J., Feldmann, J., Lipsanen, Harri, Sopanen, Markku, Tulkki, J., ...
Verhandlungen der Deutschen Physikalischen Gesellschaft, Fruhjahrstagung Regensburg 1996. Festköerperphysik, 1382
Coherent exciton-photon dynamics in single, double, and quintuple quantum wells. (1995)
Weber, D., Feldmann, J., Göbel, E.O., Citrin, D.S., Köhler, K.
We have studied experimentally the coherent exciton-photon dynamics in a single, a double, and a quintuple quantum well structure under resonant excitation. In pump and probe experiments we observe...
Volatile metal and metalloid species in gases from waste deposits (1994)
Hirner, A V., Feldmann, J, Goguel, R, Rapsomanikis, S, Andreae, M O.
Quantum beats and polarization interference from excitons in quantum wells (1993)
We show that time-resolved quantum beat spectroscopy in the four-wave mixing (FWM) geometry is a unique tool to investigate the electronic multi-level system associated with spectrally adjacent...
Quantum beats versus polarization interference - an experimental distinction (1993)
Koch, M., Feldmann, J., Plessen, G. Von, Göbel, E.O., Thomas, P., Köhler, K.
We report the first experimental distinction between quantum beats and polarization interference of independent quantum mechanical systems by time-resolving the four-wave mixing signal emitted from...
Coupling of exciton transitions associated with different quantum-well islands (1993)
Koch, M., Feldmann, J., Göbel, E.O., Thomas, P., Shah, J., Köhler, K.
We show by means of time-resolved four-wave-mixing experiments that the simultaneous excitation of energetically distinct and inhomogenously broadened exciton transitions associated with spatially...
Quantum beats and polarization interference from excitons in quantum wells (1993)
We show that time-resolved quantum beat spectroscopy in the four-wave mixing (FWM) geometry is a unique tool to investigate the electronic multi-level system associated with spectrally adjacent...
Quantum beats and polarization interference from excitons in quantum wells (1993)
We show that time-resolved quantum beat spectroscopy in the four-wave mixing (FWM) geometry is a unique tool to investigate the electronic multi-level system associated with spectrally adjacent...
In type-II Alx,Gal-xAs / AlAs multiple quantum-wells (MQW) the lowest lying electronic states in the conduction band are X-related states confined in the AlAs layers.' However, the absorption...
Fast Escape of Photocreated Carriers out of Shallow Quantum Wells, (1992)
Feldmann, J., Goossen, K. W., Miller, D. A. B., Fox, A. M., Cunningham, J. E.
Recently, strong and well-resolved excitons have been observed in the room-temperature absorption spectra of shallow GaAs/AlxGal-xAs quantum wells for values of x as low as 0.02.1 In addition, these...
Time-resolved four-wave mixing in GaAs/AlAs quantum well structures. (1992)
Koch, M., Feldmann, J., Plessen, G. Von, Meier, T., Schulze, A., Thomas, P., ...
Femtosecond nonlinear laser spectroscopy is applied to study the dynamics of coherent optical excitations in semiconductors. In particular, excitonic excitations in quantum wells and superlattice...
Quantum beats versus polarization interference: An experimental distinction (1992)
Koch, M., Feldmann, J., Plessen, G. Von, Göbel, E.O., Thomas, P., Köhler, K.
We demonstrate that transient four-wave mixing with time-resolved detection of the coherent nonlinear signal allows unambiguous experimental distinction between quantum beats and beats due to...
TEMPERATURE DEPENDENCE OF EXCITON LIFETIMES IN GaAs/AlGaAs MULTI QUANTUM WELLS (1987)
Peter, G., Feldmann, J., GÖbel, E., Moore, K., Dawson, P., Foxon, C., ...
The photoluminescence decay times in GaAs/AlGaAs multi quantum well structures with layer thickness between 2.5nm and 15nm are investigated in the temperature range of 5K to 100K. A pronounced...
TEMPERATURE DEPENDENCE OF EXCITON LIFETIMES IN GaAs/AlGaAs MULTI QUANTUM WELLS (1987)
Peter, G., Feldmann, J., GÖbel, E., Moore, K., Dawson, P., Foxon, C., ...
The photoluminescence decay times in GaAs/AlGaAs multi quantum well structures with layer thickness between 2.5nm and 15nm are investigated in the temperature range of 5K to 100K. A pronounced...
TEMPERATURE DEPENDENCE OF EXCITON LIFETIMES IN GaAs/AlGaAs MULTI QUANTUM WELLS (1987)
Peter, G., Feldmann, J., GÖbel, E., Moore, K., Dawson, P., Foxon, C., ...
The photoluminescence decay times in GaAs/AlGaAs multi quantum well structures with layer thickness between 2.5nm and 15nm are investigated in the temperature range of 5K to 100K. A pronounced...
Wehmeier, S., Ellam, R.M., Feldmann, J.
Isotope ratio measurements of organometal(loid) species are of interest in order to determine isotope fractionation of the heavy metal(loid)s which can elucidate their pathways in the environment. We...
Wehmeier, S., Ellam, R., Feldmann, J.
Isotope ratio measurements of organometal(loid) species are of interest in order to determine isotope fractionation of the heavy metal(loid)s which can elucidate their pathways in the environment. We...
Wehmeier, S., Ellam, R.M., Feldmann, J.
Isotope ratio measurements of organometal(loid) species are of interest in order to determine isotope fractionation of the heavy metal(loid)s which can elucidate their pathways in the environment. We...
Wehmeier, S., Ellam, R., Feldmann, J.
Isotope ratio measurements of organometal(loid) species are of interest in order to determine isotope fractionation of the heavy metal(loid)s which can elucidate their pathways in the environment. We...
Itskos, G., Heliotis, G., Lagoudakis, P.G., Watson, I.M., Dawson, M.D., Feldmann, J., ...
Paper discussing efficient resonant dipole-dipole coupling between Mott-Wannier and Frenkel excitons in polyfluorene films near inGaN-GaN quantum wells.