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Monolithic Tm-Doped Fiber Laser at 1951 nm With Deep-UV Femtosecond-Induced FBG Pair
We report on monolithic Tm-doped fiber laser emitting in the region around 2 µm. Pair of fiber Bragg gratings (FBGs) was written into the Tm-doped fiber by using a two-beam interferometry and a deep ultraviolet...
PublicationsLaser-Drilled Free-Form Silica Fiber Preforms for Microstructured Optical Fibers
We describe a laser drilling technology suitable for structuring solid glass preforms for microstructured optical fibers. This technology offers the possibility to prepare complex preform designs that...
PublicationsInterferon alpha-armed nanoparticles trigger rapid and sustained STAT1-dependent anti-viral cellular responses
Interferon-α (IFNα) has enormous potential for anti-proliferative and anti-viral treatments. However, clinical success is still hampered due to its limited bioavailability and thus, lack of sustained...
PublicationsFast response in-line gas sensor using C-type fiber and Ge-doped ring defect photonic crystal fiber
An in-line chemical gas sensor was proposed and experimentally demonstrated using a new C-type fiber and a hollow ring defect photonic crystal fiber (PCF). The C-type fiber segment served as a compact...
PublicationsHohlkern-Mikrostrukturierte Fasern: Herstellung und sensorische Anwendungen
Mikrostrukturierte optische Fasern mit Hohlkerndesign sind sowohl für die chemische Analytik von Gasen und Flüssigkeiten, aber auch zum Aufbau faseroptischer Druck- oder Temperatursensoren interessant....
PublicationsHigh Birefringence Triangular Optical Nanowire in Suspended-Core Fiber for Temperature Sensing
Triangular optical nanowires that present a high birefringence and a very strong confinement are fabricated. The nanowires are created by tapering suspended-core fiber down to core diameters below 1 μm....
PublicationsSuperresolution Imaging of Dynamic MreB Filaments in B. subtilis—A Multiple-Motor-Driven Transport?
The cytoskeletal protein MreB is an essential component of the bacterial cell-shape generation system. Using a superresolution variant of total internal reflection microscopy with structured illumination,...
PublicationsReal-time image processing for label-free enrichment of Actinobacteria cultivated in picolitre droplets
The majority of today’s antimicrobial therapeutics is derived from secondary metabolites produced by Actinobacteria. While it is generally assumed that less than 1% of Actinobacteria species from soil...
PublicationsExperimental setup for investigating silicon solid phase crystallization at high temperatures
An experimental setup is presented to measure and interpret the solid phase crystallization of amorphous silicon thin films on glass at very high temperatures of about 800°C. Molybdenum-SiO2-silicon film...
PublicationsMid-infrared supercontinuum generation in As2S3-silica “nano-spike” step-index waveguide
Efficient generation of a broad-band mid-infrared supercontinuum spectrum is reported in an arsenic trisulphide waveguide embedded in silica. A chalcogenide “nano-spike”, designed to transform the...
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