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Low temperature SQUID magnetometer systems for geophysical exploration with transient electromagnetics
Geophysical exploration is getting more and more difficult – many of the easily explorable ore-bodies have been discovered and are being exploited. Finding new mines requires new technologies and tools....
PublicationsTowards a monolithic fiber laser with deep UV femtosecond-induced fiber Bragg gratings
Fiber Bragg grating inscription with a deep ultraviolet (DUV) femtosecond laser and two beam interferometry allows grating inscription in germanium-free fibers without classical UV photosensitivity. Therefore...
PublicationsOptical Fiber Tips for Nanoscopic Applications
Silica-based, metal-coated fiber tips (tapers) are used in a variety of spectroscopic and micro-/ nanoscopic applications (e.g. AFM, SNOM, TERS). The optical resolution of such measurement systems is dependent...
PublicationsTowards multiple readout application of plasmonic arrays
In order to combine the advantages of fluorescence and surface enhanced Raman spectroscopy (SERS) using the same chip platform a nanostructured gold surface with a unique design allowing both the sensitive...
PublicationsPelagic boundary conditions affect the biological formation of iron-rich particles (iron snow) and their microbial communities
We studied the formation of iron-rich particles at steeply opposing gradients of oxygen and Fe(II) within the redoxcline of an acidic lignite mine lake (pH 2.9). Particles formed had a diameter of up to...
PublicationsChip-based detection system for the on-site analysis of animal diseases
A portable and robust system which is suitable for the automated analysis of DNA or RNA of selected pathogens such as foot-and-mouth disease virus (FMDV) is developed. The system incorporates a stationary...
PublicationsAnalytical biophotonics
PublicationsCorrelating internal stresses, electrical activity and defect structure on the micrometer scale in EFG silicon ribbons
In the present paper, we study the influence of defects through their stress fields on the electrical activity and residual stress states of as-grownedge-definedfilm-feed(EFG)multicrystalline silicon (mc-Si)...
PublicationsThermally stable optical fibre Bragg grating wavelength reference
The inherent temperature dependence of optical fibre Bragg gratings is causedmainly by the positive thermo-optic effect of thefibre corematerial, and it results in an increase of Bragg wavelengthwith temperature....
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