6814 Suchergebnisse für: „“
Heterojunction Based Hybrid Silicon Nanowire Solar Cell: Surface Termination, Photoelectron and Photoemission Spectroscopy Study
Silicon nanowires (SiNWs) combined with a conducting polymer are studied to constitute a hybrid organic / inorganic solar cell. This type of cell shows a particularly high interfacial area between SiNWs...
PublikationenSuperconductivity in multi-phase Mg-B-O compounds
Structures of MgB2-based materials manufactured under pressure (up to 2 GPa) by different methods having high superconducting performance and connectivity are multiphase and contain different Mg-B-O compounds....
PublikationenAlignment-free, all-spliced fiber laser source for CARS microscopy based on four-wave-mixing
An environmentally-stable low-repetition rate fiber oscillator is developed to produce narrow-bandwidth pulses with several tens of picoseconds duration. Based on this oscillator an alignment-free all-fiber...
PublikationenAn Approach to continuous on-site Monitoring of Contact Forces in Current Collectors by a Fiber Optic Sensing System
In the EU railway network, a multitude of railway companies runs their rolling stock on tracks which are not in their own responsibility. Consequently, permanent monitoring of security-relevant parameters...
PublikationenFabry-Pérot Cavity Based on Hollow-Core Ring Photonic Crystal Fiber for Pressure Sensing
An interferometric Fabry-Pérot cavity based on hollow-core ring photonic crystal fiber (HCR-PCF) for pressure sensing is proposed. The sensing head is formed by splicing a small section of HCR-PCF to...
PublikationenResonance-Raman microspectroscopy for quality assurance of dye-sensitized NiOx films with respect to dye desorption kinetics in water
Resonance Raman microspectroscopy is used to investigate dye-sensitized NiOx nanoparticle films to be used as photocathodes in tandem dye-sensitized solar cells. It is shown that rR microspectroscopy has...
PublikationenTowards the control of highly sensitive Fabry-Pérot strain sensor based on hollow-core ring photonic crystal fiber
A high sensitivity Fabry-Pérot (FP) strain sensor based on hollow-core ring photonic crystal fiber was investigated. A low-finesse FP cavity was fabricated by splicing a section of hollow-core ring photonic...
PublikationenMulticorelike guidance in a triangular-core hollow optical fiber and spectral evolution of its eigenmode degeneracy
A unique multi core-like guidance was achieved in a micro-structured optical fiber composed of a circular air hole at the center surrounded by a high-index triangular core. Unique spectral evolution of...
PublikationenFar-Field Imaging for Direct Visualization of Light Interferences in GaAs Nanowires
The optical and electrical characterization of nanostructures is crucial for all applications in nanophotonics. Particularly important is the knowledge of the optical near-field distribution for the design...
PublikationenOptical Properties of Core–Shell Gold–Silver and Silver–Gold Nanoparticles for Near UV and Visible Radiation Wavelengths
Modeling of optical properties of spherical core–shell gold–silver and silver–gold nanoparticles (NPs) was carried out based on extended Mie theory for radiation wavelengths in the range 300≤λ≤650...
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