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Tuned Transition from Quantum to Classical for Macroscopic Quantum States

The boundary between the classical and quantum worlds has been intensely studied. It remains fascinating to explore how far the quantum concept can reach with use of specially fabricated elements. Here...

Influence of Tm- or Er-codoping on the photodarkening kinetics in Yb fibers

We investigated photodarkening (PD) parameters of Yb/Al-doped silica fibers in dependence on the concentration of additional rare earth ions like Tm or Er. It is found that both, Tm and Er cause a decrease...

Geoarchaeology in the steppe: First results of the multidisciplinary Mongolian-German survey project in the Orkhon Valley, Central Mongolia

High resolution (NA=0.8) in lensless in-line holographic microscopy with glass sample carriers

For lensless digital in-line holographic microscopy a high resolution corresponding to a numerical aperture of 0.8 is reached using the tile superposition propagation technique previously presented by...

In line gas sensor based on a photonic band gap fiber with laser drilled lateral micro channels

The fabrication, characterization and gas sensor application of a hollow core photonic band gap fiber (HC-PBGF) with laser drilled lateral micro channels will be described. The HC-PBGF was tailor-made...

Slobodan Sasic, Yukihiro Ozaki (Eds.): Raman infrared, and near infrared chemical imaging

Vibrational spectroscopy-based imaging is a comparatively new imaging approach. Currently, it is applied more frequently in academic laboratories for exploration than industry for routine analysis. This...

Thermal regenerated type IIa fiber Bragg gratings for ultra-high temperature operation

Thermally regenerated fiber Bragg gratings written in photosensitive fibers with nanosecond laser pulses without hydrogen loading have been shown to become temperature stable up to 600 °C. In this paper,...

Post-hydrogen-loaded draw tower fiber Bragg gratings and their thermal regeneration gratings

The idea of Bragg gratings generated during the drawing process of a fiber dates back almost 20 years. The technical improvement of the draw tower grating (DTG) process today results in highly reliable...

Raman Spectroscopic Study of Crystallization from Solutions Containing MgSO4 and Na2SO4: Raman Spectra of Double Salts

Mg2þ, Naþ, and SO4 2- are common ions in natural systems, and they are usually found in water bodies. Precipitation processes have great importance in environmental studies because they may be part of...

Magnetization reversal in magnetic nanostripes via Bloch wall formation

We present results of micromagnetic simulations of the magnetization reversal in permalloy nanostripes with 5-10 nm thickness and 200-500 nm width under a longitudinal field of 0.4-16 kA/m. The data show...