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Scaling supercontinuum generation in gas-filled hollow-core fibers

We report on two novel approaches for improved scaling supercontinuum generation in gas-filled hollow-core fibers. Switching either from atomic to molecular gases or from capillaries to novel anti-resonant...

Watt-level femtosecond mid-infrared sources in the wavelength range from 4.1 µm to 8.5 µm

A huge variety of molecules exhibits vibrational resonances in the mid-infrared (mIR) and thus the wavelength region is extremely attractive for spectroscopic applications like human breath or trace gas...

Intentional formation of a protein corona on nanoparticles: Serum concentration affects protein corona mass, surface charge, and nanoparticle-cell interaction

The protein corona, which immediately is formed after contact of nanoparticles and biological systems, plays a crucial role for the biological fate of nanoparticles. In the here presented study we describe...

Diffusion and Viscous Flow Effects at Preparation of Microstructured Optical Sensor Fibers

Bifacial multicrystalline silicon thin film solar cells

Thanks to the fast development in recent years, over 12% efficiencies have been reached on multicrystalline silicon (mc-Si) thin film solar cells. These values are already close to those commercially available...

Lab-on-a-chip-surface enhanced raman scattering combined with the standard addition method: toward the quantification of nitroxoline in spiked human urine samples

The emergence of antibacterial resistance and the development of new drags, lead to a continuous change of guidelines for medical treatments. Hence, new analytical tools are required for the detection...

HD DVD substrates for surface enhanced Raman spectroscopy analysis: fabrication, theoretical predictions and practical performance

Commercial HD DVDs provide a characteristic structure of encoding pits which were utilized to fabricate cost efficiently large area SERS substrates for chemical analysis. The study targets the simulation...

Smith-Purcell radiation in the terahertz regime using charged particle beams from laser-matter interactions

We report on the experimental observation of Smith-Purcell (SP) radiation generation by charged particle beam from laser-matter interactions. High-power laser pulses were focused onto a thin metal foil...

UV-transparent fluoropolymer fiber coating for the inscription of chirped Bragg gratings arrays

A fluoropolymer optical fiber coating based on the thermoplastic copolymer of chlorotrifluoroethylene and vinylidene fluoride is presented. Such coatings can be used as a UV-transparent material for writing...

Total temperature measurement of fast air streams with fibre-optic Bragg grating sensors

The suitability of using fibre Bragg gratings (FBG) as sensor elements in total temperature probes for turbine compressor applications is shown. A series of five FBG-based probes were built and characterized...