6558 Search results for: „“
Photophysics of a Ruthenium Complex with a π-Extended Dipyridophenazine Ligand for DNA Quadruplex Labeling
The light-switch mechanism of the complex [Ru(bpy)2(Br-dpqp)](PF6)2 (1, bpy = 2,2′-bipyridine, Br-dpqp = 12-bromo-14-ethoxydipyrido[3,2-a:2′,3′-c]quinolino[3,2-h]phenazine), i.e., a light-up probe...
PublicationsOptical Fiber Probe for Viscosity Measurements
An optical fiber probe was developed for viscosity measurements. The sensor acts as a two-wave interferometer, sensible to the position of the fluid inside the cavity. Viscosity is measured through the...
PublicationsElectron transfer in a covalent dye-cobalt catalyst assembly – a transient absorption spectroelectrochemistry perspective
Various oxidation states of the catalytically active cobalt center ina covalent dyad were electrochemically prepared and the light induced excited-state processes were studied. Virtually identical deactivation...
PublicationsMeasurement of the dispersion of an antiresonant hollow core fiber
Due to unique properties, anti-resonant hollow core fibers have found widespread use in various fields of science and application. Particular regarding applications that involve ultrashort pulses, precise...
PublicationsSulfur Spillover on carbon materials and possible impacts on metal-sulfur batteries
There is currently intense research on sulfur/carbon composite materials as positive electrode for rechargeable batteries. Preparation of such composites by ball milling or (melt/solution) impregnation...
PublicationsPhase formation, magnetic properties, and phase stability in reducing atmosphere of M-type strontium hexaferrite nanoparticles synthesized via a modified citrate process
Nanosize Sr hexaferrite particles (SrM) were synthesized via a citrate-based sol-gel route. Thermal decomposition of a citrate precursor proceeds in a two-step process: at low temperature T1 the precursor...
PublicationsPhotoluminescence-driven Broadband Transmitting Directional Optical Nanoantennas
Optical nanoantennas mediate near and far optical fields. Operating a directional nanoantenna in transmitting mode is challenging as the antenna needs to be driven by a nanosized optical-frequency generator,...
PublicationsStudies on the controlled release of drugs from magnetic nanobiocomposites
Magnetic nanocomposites are a class of smart materials that have attracted recent interest as drug delivery systems or as medical implants. In this study, meltable nanobiocomposites (NBC) composed of biocompatible...
PublicationsAcousto-optic modulation of fiber Bragg grating in suspended core fiber for mode-locked all-fiber lasers
The interaction of a fiber Bragg grating and longitudinal acoustic waves in a three air holes suspended core fiber is experimentally investigated and employed to mode-lock a ytterbium doped fiber laser....
PublicationsReflectivity and Bandwidth Modulation of Fiber Bragg Gratings in a Suspended Core Fiber by Tunable Acoustic Waves
The acousto-optic modulation of fiber Bragg gratings in a four holes suspended core fiber is experimentally demonstrated. Strong modulations with a reflectivity amplitude decrease by up to 67% and a 57%...
Publications