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Intrinsic relaxation rates of polarized Cs vapor in miniaturized cells
The intrinsic relaxation rates of the vector magnetization of cesium vapor enclosed in microfabricated atomic magnetometer cells are investigated. Two methods - the optically detected magnetic resonance...
PublikationenIsolation and Enrichment of Pathogens with a Surface Modified Aluminium-Chip for Raman Spectroscopic Applications
We developed a Raman-compatible chip for isolating microorganisms from complex media. The isolation of bacteria is achieved by using antibodies as capture molecules. Due to the very specific interaction...
PublikationenDemonstration of amplified data transmission at 2 μm in a low-loss wide bandwidth hollow core photonic bandgap fiber
The first demonstration of a hollow core photonic bandgap fiber suitable for high-rate data transmission in the 2 μm waveband is presented. The fiber has a record low loss for this wavelength region (4.5...
PublikationenConvenient detection of E. coli in Ringer’s solution
An easy and inexpensive detection method for DNA hybridization assays combining magnetic beads and enzymatically generated silver nanoparticles is introduced. The main advantage of this approach is the...
PublikationenOptical Readout of a Nanoparticle Based Sensor by Cavity Ring-Down Spectroscopy
We combine the plasmonic properties of metallic nanoparticles enabling a label-free bioanalytical approach with the cavity ring-down method (CRD) in a miniaturized fluidic device as a sensitive and fast...
PublikationenDiode pumped solid state kilohertz disk laser system for time-resolved combustion diagnostics under microgravity at the drop tower Bremen
We describe a specially designed diode pumped solid state laser system based on the disk laser architecture for combustion diagnostics under microgravity (µg) conditions at the drop tower in Bremen. The...
PublikationenExpanding Multimodal Microscopy by High Spectral Resolution Coherent Anti-Stokes Raman Scattering Imaging for Clinical Disease Diagnostics
Over the past years fast label-free nonlinear imaging modalities providing molecular contrast of endogenous disease markers with subcellular spatial resolution have been emerged. However, applications...
PublikationenStructural properties of Gold modified YBa2Cu3O7-δ thin films
YBa2Cu3O7-d thin films were prepared by pulsed laser deposition whereby single-crystalline Au nanoparticles were embedded via a self-assembly process out of an initial Au seed layer. The size of the Au...
PublikationenCharacterization of 700 μJ T rays generated during high-power laser solid interaction
Laser produced solid density plasmas are well known as table top sources of electromagnetic radiation. Recent studies have shown that energetic broadband THz pulses can also be generated from laser driven...
PublikationenNonlinear Dependences of Optical Properties of Spherical Core–Shell Silver–Gold and Gold–Silver Nanoparticles on Their Parameters
Modeling of nonlinear optical properties of spherical core-shell gold-silver and silver-gold nanoparticles (NPs) placed in water was carried out on the base of extended Mie theory. Efficiency cross sections...
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