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Femtosecond pulse-induced Fiber Bragg Gratings for in-core temperature measurement in optically pumped Yb-doped silica fibers
We report on the in-core fiber temperature measurements in Yb2O3-doped aluminum silicate fibers during optical pumping using UV femtosecond-induced fiber Bragg gratings (FBG). The FBG containing fiber...
PublicationsCatalytic processes monitored at the nanoscale with tip-enhanced Raman spectroscopy
Heterogeneous catalysts play a pivotal role in the chemical industry, but acquiring molecular insights into functioning catalysts remains a significant challenge1–4. Recent advances in micro-spectroscopic...
PublicationsInnovative Hybrid Materials for Coating Special Silica Optical Fibers
Inorganic organic (hybrid) materials (ORMOCER®s ) were used to coat optical fibers for use in Fiber Bragg Grating sensors and in high power transmission fibers. The materials are synthesized via sol-gel...
PublicationsStudy of Lanthanum Aluminum Silicate Glasses for Passive and Active Optical Fibers
We are reporting on SiO2-Al2O3-La2O3 glasses with and without Yb2O3 suitable for nonlinear and fiber laser applications. The glass compositions were optimized in terms of thermal and optical requirements...
PublicationsMonolayers of different metal nanoparticles in microstructured optical fibers with multiplex plasmonic properties
Microstructured optical fibers (MOFs) show plasmonic properties after deposition of metal nanoparticles on the surface of their capillaries. A method of enhancing the functionality of such fibers by immobilizing...
PublicationsComparative Analysis of Thermo-Optical Properties of Metallic Nanoparticles for Photonic Applications in Nanotechnology
Applications of nanoparticles (NPs) as photothermal (PT) agents in laser nanotechnology are fast growing areas of research. Many potential benefits include possibility for imaging and treatment of materials...
PublicationsMulticore fiber with integrated fiber Bragg gratings for background-free Raman sensing
In the last years a variety of fiber optic Raman probes emerged, which are only partly suited for in-vivo applications. The in-vivo capability is often limited by the bulkiness of the probes. The size...
PublicationsFiber optic probes for linear and nonlinear Raman applications – Current trends and future development
This review focuses on fiber optic probes for linear and nonlinear Raman spectroscopy. It aims at providing an overview over contemporary technology and identifying future developments necessary to bring...
PublicationsLine Scan – Structured Illumination Microscopy super-resolution imaging in thick fluorescent samples
Structured illumination microscopy in thick fluorescent samples is a challenging task. The out-of-focus fluorescence background deteriorates the illumination pattern and the reconstructed images suffer...
PublicationsOptimised Glass Rod Drawing Process for Gradient-Index Microlenses
In this work, we present technological and material-scientific studies on the manufacture of gradient-index microlenses. The investigations were directed to the optimisation of the glass rod drawing process...
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