Recently, Alexander Wittmann published on the “Consolidation of thermoplastic coatings by means of a thulium-doped fiber laser”. He investigated the suitability of this laser for depositing polymer coatings on stainless steel substrates.
To optimize the layer morphology, he varied the main proces...
With additive manufacturing, highly customized parts of high complexity and resolution can be fabricated. Mixing nanoparticles into the feedstock polymer powders may improve the outcome of the laser powder bed fusion. With a multitude of evaluation techniques, Alexander Sommereyns investigated the i...
The recent publication of Lisa Ackermann deals with “Uniform and efficient beam shaping for high-energy lasers”. By setting two spatial light modulators in a proper arrangement, she realized a setup that enables tailored light fields even for high-energy pulsed lasers. Thus, she was able to create a...
Thermal lensing is an unwanted effect in optics used for high-power laser imaging. The high light intensity causes a heat up of the lenses which induces a focus shift. To tackle this issue, Phillip Rall recently presented a “Simulation and compensation of thermal lensing in high-power optical system...
Yakun He successfully worked on “Unraveling the Charge-Carrier Dynamics from the Femtosecond to the Microsecond Time Scale in Double-Cable Polymer-Based Single-Component Organic Solar Cells”. She investigated the charge carrier dynamics of a representative polymer across seven orders of magnitude in...
Photovoltaic energy generation will play a major role in the future of producing electric energy. “Outdoor photoluminescence of large area photovoltaic modules”, investigated by Bernd Doll, can act as an on-site tool for fast and cost-effective characterization of solar cells.
For investigation o...
Microcirculation describes the circulation of blood in the smallest vessels. The publication of Moritz Späth deals with the “Determination of the diameter of simulated human capillaries using shifted position‐diffuse reflectance imaging”. Using Monte-Carlo simulations, he showed that this non-invasi...
Recently, Stefan Richter published on “Imaging Trapped Ion Structures via Fluorescence Cross-Correlation Detection”. This highly sensitive technique yields structural information of the arrangement of single photon sources where direct imaging techniques fail.
His results on the spatial frequenc...
With her “Arrangement for the benchmarking of in-situ process monitoring of topographical process signatures within the Laser Powder Bed Fusion process”, Karen Schwarzkopf presents a custom made setup for examination of defect mechanisms in additive manufacturing.
This setup combines a low-cohere...
Rong Wang recently published on “Understanding the Microstructure Formation of Polymer Films by Spontaneous Solution Spreading Coating with a High-Throughput Engineering Platform”.
She presents an automated workflow for the preparation and optical characterization of polymer films used in optoel...
