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All-fiber laser mode-locked by the acousto-optic modulation of a fiber Bragg grating in suspended core fiber
An ytterbium-doped fiber laser mode-locked by the interaction of a fiber Bragg grating and longitudinal acoustic waves in a suspended core fiber is experimentally investigated. An optimized design of an...
PublicationsThe REPUSIL process and the capability of fluorine doping for the adjustment of optical and thermochemical properties in silica materials
We report on the fluorine incorporation in powder based materials for the fabrication of Al and Al/Yb co-doped silica glasses. The achieved maximum Fluorine concentration of 1.55 mol% SiF4 corresponds...
PublicationsTHz Absorption in Fabric and Its Impact on Body Scanning for Security Application
In recent years, body scanner technologies based on millimeter-wave and terahertz technologies have been shown to improve security in areas sensitive to terrorist attacks by detecting hazardous objects...
PublicationsTwo-dimensional imaging in hyperbolic media–the role of field components and ordinary waves
We study full vector imaging of two dimensional source fields through finite slabs of media with extreme anisotropy, such as hyperbolic media. For this, we adapt the exact transfer matrix method for uniaxial...
PublicationsUltrathin niobium nanofilms on fiber optical tapers – a new route towards low-loss hybrid plasmonic modes
Due to the ongoing improvement in nanostructuring technology, ultrathin metallic nanofilms have recently gained substantial attention in plasmonics, e.g. as building blocks of metasurfaces. Typically,...
PublicationsFast, Label-Free Tracking of Single Viruses and Weakly Scattering Nanoparticles in a Nanofluidic Optical Fiber
High-speed tracking of single particles is a gateway to understanding physical, chemical, and biological processes at the nanoscale. It is also a major experimental challenge, particularly for small, nanometer-scale...
PublicationsSystematic evaluation of the biological variance within the Raman based colorectal tissue diagnostics
Being among the most common cancers worldwide screening and early diagnosis of colorectal cancer is of high interest for the health system, the patients and for research. Raman microspectroscopy as a label-free,...
PublicationsTheranostic Applications Of Low-Toxic Silicon Nanoparticles: Bioimaging & Sonosensitising
Evaluation of photoluminescence, bio-imaging, cytotoxicity and sono-sensitizing properties of silicon nanoparticles (SiNPs) have been investigated. The prepared SiNPs exhibit efficient room temperature...
PublicationsRaman Based Molecular Imaging and Analytics: A Magic Bullet for Biomedical Applications!?
The Raman effect was predicted by Schmekal1 in 1923 and independently discovered in 1928 by two Indian physicists, Raman and Krishna.2,3 In principle, monochromatic light is inelastically scattered at...
PublicationsMagnetic NGF-Releasing PLLA/Iron Oxide Nanoparticles Direct Extending Neurites and Preferentially Guide Neurites along Aligned Electrospun Microfibers
Nerve growth factor releasing composite nanoparticles (NGF-cNPs) were developed to direct the extension of neurite outgrowth from dorsal root ganglia (DRG). Iron oxide magnetic nanoparticles were incorporated...
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