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The increasing demand for higher data rates and small form factor equipment for optical networks is fuelling research on integrated optical devices with small footprint and broad bandwidth. Here, we present novel design approaches for grating couplers in the silicon and silicon nitride platforms that enable broadband operation and highly efficient coupling. Furthermore, we report experimental findings...
We report methods of engineering the bandgap of SiGe and Ge compounds for the fabrication of electro absorption modulators and light emitting devices. We demonstrate uniform composition, single crystal, defect free SiGe-on-insulator formation. The composition can be tuned in different positions of the chip by modifying the structural design. We also demonstrate Ge disks with strain values of 1.1 and...
ObjectivesThe clinical usefulness of blood biomarkers in acute stroke is not yet fully established, especially after thrombolytic therapy. Our aim was to investigate the association between routine serum C‐reactive protein (CRP) measured within 24 h after admission and outcome in ischaemic stroke patients treated with intravenous thrombolysis, adjusting for a history of recent infection.
MethodsWe...
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