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Microwave properties of microstrip line circuits used for Josephson voltage standard arrays at 70 GHz
The microwave properties of microstrip lines used for Josephson voltage standard circuits at frequencies from 70 GHz to 75 GHz were investigated for temperatures of 4.2 K. The work focuses on the microwave...
PublicationsDisorder control of Tc in thin film molybdenum
We have looked at the dependence of the superconducting transition temperature on the deposition parameters of magnetron sputtered Mo on Si3N4 coated Si substrates. From the measurements we can conclude...
PublicationsFemtosecond relaxation kinetics of highly excited MNa** states in CaF2 at 3.2 eV and 4.7 eV
Femtosecond (fs) laser pulses at variable delay times allowed to track the fast non-radiative transitions between the manifold of highly excited MNa** states to the lower lying fluorescent MNa* state in...
PublicationsDetermination of the photoluminescence quantum efficiency of silicon nanocrystals by laser-induced deflection
The oxidation and passivation of freshly prepared silicon nanocrystals Si NCs have been studied by exciting them with a low-fluence violet laser at 406 nm and measuring both the heat generated by nonradiative...
PublicationsLaser induced deflection technique for absolute thin film absorption measurement: optimized concepts and experimental results
Using experimental results and numerical simulations, two measuring concepts of the laser induced deflection (LID) technique are introduced and optimized for absolute thin film absorption measurements...
PublicationsRapid lifetime testing of fused silica for DUV laser applications
Lifetime testing of fused silica's absorption degradation upon 193 nm is shortened by enhancing the twophoton absorption (TPA) induced generation of E′ and NBOH defect centers per laser pulse. Increasing...
PublicationsDistinction of Nucleobases – a Tip-Enhanced Raman Approach
The development of novel DNA sequencing methods is still one of the ongoing challenges in various fields of research to address the demand for sequence information. However, many of these techniques rely...
PublicationsSurface-micromachined thermoelectric infrared focal-plane array with high detectivity for room temperature operation
Thermopile detectors are particularly well suited for spectral imaging, space science applications, track recording, presence detection and applications with low energy consumption. The purpose of this...
PublicationsComparison of femtosecond laser-induced damage on unstructured vs. nanostructured Au-targets
The combination of high-eld physics with nano-plasmonics has proven to be feasible in producing high harmonics of intense laser radiation from noble gases, assisted by the eld-enhancement effect in the...
PublicationsDiffusion in Yb2O3–Al2O3–SiO2 glass
The diffusion of aluminium and ytterbium in Yb2O3–Al2O3–SiO2 glasses has been investigated between 1700 and 2000°C with concentrations of up to 3 mol% Al2O3 and 0·8 mol% Yb2O3. The diffusion coefficient...
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