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Terra and Aqua, 2 satellites launched by the NASA-centered international Earth Observing System project, house MODIS (Moderate Resolution Imaging Spectroradiometer) sensors. Moderate resolution remote sensing allows the quantifying of land surface type and extent, which can be used to monitor changes in land cover and land use for extended periods of time. In this paper, we propose applying an ensemble...
A variable sensitivity photodetector for a dynamic optical neurochip is proposed. This device is a three terminal photodetector whose sensitivity is modulated by the applied gate voltage. The high speed response of the device is promising for the realisation of variable analogue synaptic interconnections in optical neurocomputer systems.<<ETX>>
Demonstrates a first differential optical comparator using AlGaAs pnpn optical switches connected in parallel. The experimental result shows good differential switching for two input lights from laser diodes. The simplicity of the device configuration makes it suitable for monolithic 2D arrays needed in future optical parallel processing.<<ETX>>
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