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Non-phase-matched tunable band rejection in an all-solid photonic bandgap fiber with high-index rods on graded-index pedestals

Generation of flattop pump pulses for OPCPA by coherent pulse stacking with fiber Bragg gratings

We present a simple and robust pulse shaping device based on coherent pulse stacking. The device is embedded in a polarisation maintaining step index fiber. An input pulse is sent through a fiber optical...

Validity limits of the Neel relaxation model of magnetic nanoparticles for hyperthermia

The derivation of the optimum mean diameter of magnetic nanoparticles (MNP) for hyperthermia as a tumour therapy in the literature is commonly reduced to application of the N´eel relaxation model. Serious...

Nonlinear photonic crystal fiber with a structured multi-component glass core for four-wave mixing and supercontinuum generation

We report about a new type of nonlinear photonic crystal fibers allowing broadband four-wave mixing and supercontinuum generation. The microstructured optical fiber has a structured core consisting of...

Covalent Attachment of Alkyl Functionality to 50 nm Silicon Nanowires through a Chlorination/Alkylation Process

For many applications, the presence of oxide on Si nanowires (Si NWs) is undesirable because of the difficulty in controlling the SiO2/Si interface properties. Here, we report on the functionalization...

A Concept to Tailor Electron Delocalization: Applying QTAIM Analysis to Phenyl-Terpyridine Compounds

To gain a deeper understanding of how structural modifications may influence photochemical properties of 4′-phenyl-2,2′:6′,2′′-terpyridines, the investigations presented here focus on electron...

Non-isothermal bleaching of photodarkened Yb-doped fibers

We report on the thermal treatment of photodarkened Yb-doped fiber samples. The method of non-isothermal bleaching at different temperature ramp rates can be used to determine the thermal energy distribution...

Thermal regeneration of fiber Bragg gratings in photosensitive fibers

We report about a thermal regeneration of fiber Bragg gratings written in photosensitive fibers with nanosecond laser pulses. We observe a regenerative process in a highly photosensitive fiber without...

Tip-enhanced Raman scattering (TERS) and high-resolution bio nano-analysis-a comparison

This perspective presents and assesses the development and capabilities of tip-enhanced Raman scattering (TERS) since its discovery in 2000. So far, this technique has proven to be valuable for studies...

Derivation of Correlation Functions to Predict Bond Properties of Phenyl-CH Bonds Based on Vibrational and H-1 NMR Spectroscopic Quantities