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All-fiber laser source for CARS microscopy based on fiber optical parametric frequency conversion

A novel approach for an all-fiber mono-laser source for CARS microscopy is presented. An Yb-fiber laser generates 100 ps pulses, which later undergo narrowband in-fiber frequency conversion based on degenerate...

The morphology of silver nanoparticles prepared by enzyme-induced reduction

Silver nanoparticles were synthesized by an enzymatic induced growth process onto solid substrates. In order to customize the enzymatically grown nanoparticles (EGNP) to analytical applications in bio-molecular...

Tracking of nanoscale structural variations on a single amyloid fibril with tip-enhanced Raman scattering

Amyloid fibrils are known to be responsible for diseases such as Alzheimer’s disease. A detailed insight into the structure of amyloid fibrils is fundamental since it is not yet understood what triggers...

Concepts and steps for the realization of a new domain wall based device: from the available 24 multiturn counter to a 2power12 turn counter

Two concepts for new types of a magnetic domain wall based multiturn counter with true power on functionality are presented. Both counters use several closed loops of magnetic nanowires, each with different...

The morphology of Al-based submicron Josephson junction

We present a detailed study of the microstructure of submicron Al/Al−O/Al Josephson junctions fabricated by the conventional shadow evaporation technique. The morphology of the dielectric Al−O layer,...

High Pressure Synthesized Magnesium Diboride- and Dodecaboride-Based Superconductors: Structure and Properties

The critical current density, jc, of high-pressure synthesized MgB2-based balk materials correlates with the amount and distribution of higher borides (MgB12) and Mg-B-O inclusions, which in tern correlates...

Placenta perfusion – a suitable ex vivo model to charcterize interaction of nano-particles with human tissue?

Optical transmission through subwavelength hole arrays in ultrathin metal films

Contrary to thick opaque metal films, where an extraordinary high transmission of light is observed through subwavelength hole arrays, in ultrathin metal films perforation can lead to a suppressed or an...

Identification and characterization of single tumor cells from peripheral blood by Raman spectroscopy and optical tweezers

From Bulk to Single-Cell Classification of the Filamentous Growing Streptomyces Bacteria by Means of Raman Spectroscopy

Classification of Raman spectra recorded from single cells is commonly applied to bacteria that exhibit small sizes of approximately 1 to 2 μm. Here, we study the possibility to adopt this classification...