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Raman Spectroscopic Detection of Anthrax Endospores in Powder Samples
Better safe than sorry: A combined analytical procedure consisting of Raman spectroscopy and chemometrics can be used to test for anthrax endospores in environmental samples. Time-consuming enrichment...
PublikationenSuperconducting Nanowire Single-Photon Detectors for Picosecond Time Resolved Spectroscopic Applications
Raman scattering spectroscopy allows the direct and fast study of molecules by analysis of their vibrational normal modes. However, for certain materials the scattered signal is superimposed by fluorescence,...
PublikationenSuperconducting single-photon counting system for optical experiments requiring time-resolution in the picosecond range
We have developed a cryogenic measurement system for single-photon counting, which can be used in optical experiments requiring high time resolution in the picosecond range. The system utilizes niobium...
PublikationenCharacteristics and performance of an intensity-modulated optically pumped magnetometer in comparison to the classical Mx magnetometer
We compare the performance of two methods for the synchronization of the atomic spins in optically pumped magnetometers: intensity modulation of the pump light and the classical Mx method using B1 field...
PublikationenGeometrical optimization and contact configuration in radial pn junction silicon nanorod and microrod solar cells
Electric charge transport simulations of symmetrically doped radial pn junction silicon nanorod solar cells were performed using the TCAD software suite by Silvaco. Two schemes of electric contacting were...
PublikationenAdvances in tip-enhanced Raman scattering (TERS) for biochemical applications
Raman scattering (TERS) provides exceptional spatial resolution without any need for labeling and has become a versatile tool for biochemical analysis. Two examples will be highlighted here. On the one...
PublikationenOptimal control of coherent anti-Stokes Raman scattering image contrast
Optimal control of CARS image contrast is reported. The setup combines an evolutionary strategy and a closed-loop feedback with a liquid-crystal spatial modulator to control the spectrum of the Stokes...
PublikationenObservation of energetic terahertz pulses from relativistic solid density plasmas
We report the first experimental observation of terahertz (THz) radiation from the rear surface of a solid target while interacting with an intense laser pulse. Experimental and two-dimensional particle-in-cell...
PublikationenThe role of interactions in systems of magnetic iron oxide nanoparticles in the single domain size range
Magnetic nanoparticles are interesting materials for a lot of medical and technical applications. A less experimentally investigated question is the influence of particle packing density on magnetic properties...
PublikationenNanoscale all-normal dispersion optical fibers for coherent supercontinuum generation at ultraviolet wavelengths
We report on the possibilities of nanoscale optical fibers with all-normal dispersion behavior for pulse-preserving and coherent supercontinuum generation at deep ultraviolet wavelengths. We discuss the...
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