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Power-law dependence of the photodarkening rate constant on the inversion in Yb doped fibers

The description of the photodarkening (PD) kinetics of Yb-doped silica fibers with a stretched exponential function is analyzed in more detail, revealing a dependence of the determined PD parameter values...

Vibrational Spectroscopy-A Powerful Tool for the Rapid Identification of Microbial Cells at the Single-Cell Level

Rapid microbial detection and identification with a high grade of sensitivity and selectivity is a great and challenging issue in many fields, primarily in clinical diagnosis, pharmaceutical, or food processing...

Applications of modern micro-Raman spectroscopy for cell analyses

Raman spectroscopy assesses the chemical composition of a sample by exploiting the inherent and unique vibrational chacteristics of chemical bonds. Initial applications of Raman were identified in the...

A hydrogel based fluorescent micro array used for the characterization of liquid analytes

A fluorimetric micro spot array using non-specific recognition function is described for the analysis of liquid samples. The array was composed of binary mixtures of various fluorescence dyes which were...

Direct analysis of clinical relevant single bacterial cells from cerebrospinal fluid during bacterial meningitis by means of micro-Raman spectroscopy

Bacterial meningitis is a relevant public health concern. Despite the availability of modern treatment strategies it is still a life‐threatening disease that causes significant morbidity and mortality....

Fast wavelength-switching of a diode-pumped solid-state disk laser

The functionality of two experimental setups for fast wavelength-switching of an Yb:YAG disk laser is tested and characterized. The first setup consists of two resonators sharing one disk. Both resonators...

Microstructure and lattice bending in polycrystalline laser-crystallized silicon thin films for photovoltaic applications

Grain size, grain boundary population, orientation distribution and lattice defects of polycrystalline silicon thin films are investigated by electron backscatter diffraction (EBSD). The silicon thin films...

A new approach towards the detection and identification of circulating tumour cells

Voltage-current and voltage-flux characteristics of asymmetric high T-C DC SQUIDS

We report measurements of transfer functions and flux shifts of 20 on-chip high TC DC SQUIDs half of which were made purposely geometrically asymmetric. All of these SQUIDs were fabricated using standard...

Superconductor-to-Semiconductor Interface Circuit for High Data Rates

We present a new kind of rapid-single-flux-quantum (RSFQ) output driver together with a pseudomorphic high electron mobility transistor (p-HEMT) amplifier both operating at liquid helium temperature. The...