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Energy-transfer parameters in a Tm/Yb doped single mode silica fiber
Energy-transfer parameters in a thulium-ytterbium doped single mode silica fiber have been determined quantitatively for the first time, to our knowledge. The principal energy-transfer parameters, estimated...
PublicationsNanoparticle Layer Deposition for Plasmonic Tuning of Microstructured Optical Fibers
Plasmonic nanoparticles with spectral properties in the UV-to-near-IR range have a large potential for the development of innovative optical devices. Similarly, microstructured optical fi bers (MOFs) represent...
PublicationsNanostructured Gold Films for SERS by Block Copolymer-Templated Galvanic Displacement Reactions
Up to now, little effort has been made to exploit large-area high-throughput patterning by block copolymer (BCP) lithography to generate nanostructured substrates with periods well below 100 nm for surface-enhanced...
PublicationsSynthesis and characterization of regioselective substituted tetrapyridophenazine ligands and their Ru(II) complexes
A series of novel regioselective substituted tpphz ligands and two novel mononuclear ruthenium complexes of the type [(tbbpy)2Ru(tpphzRn)](PF6)2 (where tbbpy = 4,4′-di-tert.-butyl-2,2′-bipyridine,...
PublicationsYtterbium-Doping Related Stresses in Preforms for High-Power Fiber Lasers
Frozen-in mechanical stresses can significantly influence the optical and mechanical properties of optical fibers, especially in laser fibers for high-power operation. In the following, we will report...
PublicationsEuropean roadmap on superconductive electronics – status and perspectives
For four decades semiconductor electronics has followed Moore’s law: with each generation of integration the circuit features became smaller, more complex and faster. This development is now reaching...
PublicationsScreen printing as cost-efficient fabrication method for DNA-chips with electrical readout for detection of viral DNA
The fast development in the field of DNA analytics is driven by the need for cost-effective and highthroughput methods for the detection of biomolecules. The detection of DNA using metal nanoparticles...
PublicationsQuantification of brain lipids by FTIR spectroscopy and partial least squares regression
Brain tissue is characterized by high lipid content. Its content decreases and the lipid composition changes during transformation from normal brain tissue to tumors. Therefore, the analysis of brain lipids...
PublicationsSilver Coated Platinum Core-Shell Nanostructures on Etched Si Nanowires: Atomic Layer Deposition (ALD) Processing and Application in SERS
A new method to prepare plasmonically active noble metal nanostructures on large surface area silicon nanowires (SiNWs) mediated by atomic layer deposition (ALD) technology has successfully been demonstrated...
PublicationsFiber Bragg grating inscription in pure-silica and Ge-doped photonic crystal fibers
We report on fiber Bragg gratings (FBGs) inscribed in pure-silica and Ge-doped photonic crystal fibers (PCFs) with a two-beam interference technique and a femtosecond or excimer laser. Such a technique...
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