A5025176433- nanoparticles nucleation surface interactions
- Advanced Materials Characterization Techniques
- Surface and Thin Film Phenomena
- Fluid Dynamics and Thin Films
- Force Microscopy Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Microstructure and mechanical properties
- Ion-surface interactions and analysis
- Solidification and crystal growth phenomena
- Photonic and Optical Devices
- Crystallization and Solubility Studies
- Semiconductor Quantum Structures and Devices
- Advanced Chemical Physics Studies
- Heat Transfer and Boiling Studies
- Chemical and Physical Properties of Materials
- Diamond and Carbon-based Materials Research
- Molecular Junctions and Nanostructures
- Advanced Electron Microscopy Techniques and Applications
- X-ray Diffraction in Crystallography
- Carbon Nanotubes in Composites
- Plasmonic and Surface Plasmon Research
- Surface Chemistry and Catalysis
- Metal Forming Simulation Techniques
- Non-Destructive Testing Techniques
- Adhesion, Friction, and Surface Interactions
University of Bremen
2021-2024
Centre National de la Recherche Scientifique
1982-1992
Aix-Marseille Université
1974-1992
Centre d’Immunologie de Marseille-Luminy
1870-1990
Université Claude Bernard Lyon 1
1974-1984
Groupe de Physique des Matériaux
1984
Friedrich-Alexander-Universität Erlangen-Nürnberg
1979
Institut National des Sciences Appliquées de Lyon
1976
Fritz Haber Institute of the Max Planck Society
1956-1975
Leipzig University
1974
Mit dem Feldelektronenmikroskop werden Metallspitzen aus Tantal-, Wolfram- und Nickel-Einkristallen untersucht. Es wird nachgewiesen, daß der Reinheitsgrad Ta-Oberfläche weitaus besser ist, als bei bisher rein bezeichneten Ta-Flächen.
Metallic nanocavity lasers provide important technological advancement towards even smaller integrable light sources. They give access to widely unexplored lasing physics in which the distinction between different operational regimes, like those of thermal or a coherent emission, becomes increasingly challenging upon approaching device with near-perfect spontaneous-emission coupling factor $\beta$. In fact, quantum-optical studies have be employed reveal transition emission intensity...
Abstract Quantum well nanolasers usually show single‐mode lasing, as gain saturation suppresses emissions in other modes. In contrast, for whispering gallery mode microdisk lasers with GaN quantum wells active material, above threshold multimode laser emission is observed. This intriguing feature manifested the fact that several modes simultaneously characteristic kink input–output curve at onset of lasing. A theory used to support experimental finding and analyze this behavior presence...
The emission of electrons from a metal by strong electric field is connected with the thermoelectric Nottingham effect, which at low temperatures heats cathode. We have studied this effect in state superconductivity (niobium) where other thermal effects disappear and more precise measurements become possible. heat produced one electron, 〈\ensuremath{\epsilon}〉, measured microcalorimetric method use field-emitter tip. 〈\ensuremath{\epsilon}〉 determined comparison flux reference calibrated...