6814 Suchergebnisse für: „“

Passive Mode-Locking in a Monolithic Multi-Core Fiber Laser

An active multi-core fiber (MCF) is used as the basis for a monolithic fiber laser. After characterization of the Yb-doped MCF, the effect of multi-mode interference (MMI) between competing supermodes...

Temperature controlled camptothecin release from biodegradable magnetic PLGA microspheres

Drug loaded magnetic microspheres (MMS) can be magnetically guided to a target area within the body, where the pharmaceutical agent is released passively. For a faster release, the microspheres have to...

A new technique for efficient input coupling into sub-wavelength diameter suspended core fibers

We discuss a new technique for efficient input coupling of light into sub-wavelength diameter suspended core fibers. Using a fiber with a low index cladding, it can be collapsed to an all-solid fiber with...

Polarization evolution in single-ring antiresonant hollow-core fibers

Understanding polarization in waveguides is of fundamental importance for any photonic device and is particularly relevant within the scope of fiber optics. Here we investigate the dependence of the geometry-induced...

Raman spectroscopy for the characterization of antimicrobial photodynamic therapy against Staphylococcus epidermidis

The aim of this study was to investigate the use of Raman spectroscopy for characterization of antimicrobial photodynamic therapy (APDT) with methylene blue (MB) to Staphylococcus epidermidis. Results...

Sensitivity Studies and Optimization of Arrangements of Optically Pumped Magnetometers in Simulated Magnetoencephalography

Purpose – We present a simulation study using a model of a new optically pumped magnetometer sensor for the application in the field of magnetoencephalography. The effects of sensor distance and orientation...

Linkage of photodarkening parameters to microscopic quantities in Yb-doped fiber material

We present a microscopic model that adequately describes experimental experiences of photodarkening (PD) investigations and is based on appropriate micro-optical mechanisms. The PD effect is treated as...

Electron beam evaporation of silicon for poly-silicon/SiO2 passivated contacts

Tunable multi-wavelength third harmonic generation using exposed-core microstructured optical fiber

We demonstrate that exposed-core microstructured optical fibers offer multiple degrees of freedom for tailoring third harmonic generation, through core diameter, input polarization, and nanofilm deposition....

Intra-cavity measurement concept of dispersion properties with a tunable fiber-integrated laser

The dispersion properties of fibers depict a key characteristic to model the propagation of ultra-short pulses in waveguides. In the following, a new method is presented to directly measure the dispersion...