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Characterization and calibration of shape sensors based on multicore optical fibre
In order to provide high accuracy in shape measurement with multicore optical fibres, characterization and calibration procedures are an important part of sensor preparation. Some procedures can be considered...
PublikationenTowards Bacteria Counting in DI Water of Several Microliters or Growing Suspension Using Impedance Biochips
We counted bacterial cells of E. coli strain K12 in several-microliter DI water or in several-microliter PBS in the low optical density (OD) range (OD = 0.05–1.08) in contact with the surface of Si-based...
PublikationenInfluence of pedestral diameter on mode instabilities in Yb/Ce/Al-doped fibers
In this paper we present numerical and experimental results revealing that the mode instability threshold of highly Yb-doped, Ce/Al co-doped pedestal fibers is affected by the size of the index-increased...
PublikationenBackground Reduction in STED-FCS Using a Bivortex Phase Mask
Fluorescence correlation spectroscopy (FCS) is a valuable tool to study the molecular dynamics in living cells. When used together with a super-resolution stimulated emission depletion (STED) microscope,...
Publikationen792 or 793? Charlemagne’s canal project: craft, nature and memory
In autumn 793, Charlemagne visited the fossatum magnum (the ‘big ditch’ or canal) between the Rhine and Danube. Excavations, dendrochronology and a re-reading of Carolingian Annals shed new light on...
PublikationenSuperconducting Sensors and Methods in Geophysical Applications
More than 50 years ago superconducting quantum interference devices (SQUIDs) were invented. Since then many applications opened up. Already in a 1980 workshop (Weinstock and Overton 1981 SQUID Applications...
PublikationenDiscrimination between pathogenic and non-pathogenic E. coli strains by means of Raman microspectroscopy
Bacteria can be harmless commensals, beneficial probiotics, or harmful pathogens. Therefore, mankind is challenged to detect and identify bacteria in order to prevent or treat bacterial infections. Examples...
PublikationenInfluence of Carbon Sources on Quantification of Deuterium Incorporation in Heterophic Bacteria: A Raman-Stable Isotope Labeling Approach
A rapid and reliable method for the differentiation between active and inactive bacteria at single cell level is urgently needed in many fields including clinical diagnosis and environmental microbiology,...
PublikationenThe role of MLCT states in the Franck-Condon region of neutral, heteroleptic Cu(l)-4H-imidazolate complexes
The impact of the electronic structure of a series of 4H-imidazolate ligands in neutral, heteroleptic Cu(I) complexes is investigated. Remarkable broad and strong ligand-dependent absorption in the visible...
PublikationenUnderstanding longitudinal optical oscillator strengths and mode order
A classical way of describing dielectric functions employs sums of contributions from damped harmonic oscillators. We derive the corresponding dispersion relations for the dielectric function and the inverse...
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