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Optical modulators are central to a large number of applications in photonics particularly in the area of communication as they provide the function of writing electrical data onto an optical carrier. Silicon photonics provides a route to the realisation of low cost photonic integrated circuits through fabrication which is synonymous with CMOS electronic fabrication, i.e., high volume and high yield...
WIFI-based received signal strength indicator (RSSI) fingerprinting is widely used for indoor localization due to desirable features such as universal availability, privacy protection, and low deployment cost. The key of RSSI fingerprinting is to construct a trustworthy RSSI map, which contains the measurements of received access point (AP) signal strengths at different calibration points. Location...
PETiPIX is an ultra high spatial resolution small animal PET scanner designed for scanning of mouse brains. It utilises four state of the art pixellated silicon detectors, Timepix, in an edge-on configuration to provide a field of view (FoV) 15 mm in diameter. Each Timepix detector consists of 256×256 pixels, with pixel dimensions of 55µm×55µm×300µm. Monte Carlo simulations have been carried to evaluate...
We present modulators developed in the projects “HELIOS”, and “UK Silicon Photonics”, integration with modulator driver to produce the first silicon modulator fully integrated with BiCMOS, and multiplexed photonic crystal modulators for ultra-low power operation.
The OMEGA laser system is being used to investigate several approaches to inertial confinement fusion: the traditional central-hot-spot (CHS) ignition, fast ignition (FI), and shock ignition (SI). To achieve ignition, CHS requires the highly uniform compression of a solid deuterium-tritium (DT)-layered target on a low adiabat (defined as the ratio of the pressure to the Fermi-degenerate pressure)...
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