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Large‐scale issues with a spatial and temporal context such as the COVID‐19 pandemic, the war against Ukraine, and climate change have given visual storytelling with data a lot of attention in online journalism, confirming its high effectiveness and relevance for conveying stories. Thus, new ways have emerged that expand the space of visual storytelling techniques. However, interactive visual data...
Monolithically integrated light sources on silicon are key for future semiconductor microchips that comprise Si CMOS and on-chip optical interconnects as prerequisite for more energy efficient computers and data centres. Recently, major advances were achieved regarding direct integration of III-V gain material on silicon without introducing threading dislocations, especially via heteroepitaxy of semiconductor...
Additional functionalities on semiconductor microchips are progressively important in order to keep up with the ever increasing demand for more powerful computational systems. Recently, III-V integration on Si attracted significant research interest [1] due to the promise to merge mature Si CMOS processing technology with III-V semiconductors possessing superior material properties e.g. in terms of...
We present recent advances on monolithically integrated GaAs-nanowire lasers on silicon, and further demonstrate epitaxial gain control to tune threshold power density and lasing wavelength using low-dimensional systems. Ultimately, we also show schemes for ultrafast emission and unique phase coherence properties for future phase-locked lasers.
Here, we present our recent highlights on monolithically integrated GaAs-nanowire lasers on silicon and further demonstrate capabilities in epitaxial gain control to tune threshold power density and lasing wavelength. Importantly, the investigated NW lasers reveal high spontaneous emission coupling factors (beta-factor) of 0.2, and ultrafast temporal emission down to < 3 ps, equivalent to repetition...
Background Textural features in FDG-PET have been shown to provide prognostic information in a variety of tumor entities. Here we evaluate their predictive value for recurrence and prognosis in NSCLC patients receiving primary stereotactic radiation therapy (SBRT). Methods 45 patients with early stage NSCLC (T1 or T2 tumor, no lymph node or distant metastases) were included in this retrospective...
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