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A back-illuminated planar InGaAs photodiode tested to have 95% quantum effiiency (QE) at 1550 nm, area greater than 1 mm2, low capacitance (125 MHz) will be improved. Although the existing Phase I device exhibited bulk material dark current generation better than commercially available devices, the sidewall-generated dark current was found to dominate the noise equiva ...

Crossfield intends to develop a single chip, low-power, flexible radio transceiver in ultrawideband technology that is battery operated and can support wireless sensor network applications not currently addressed by off-the-shelf wireless standards such as IEEE802.15.4. By implementing an ultrawideband (UWB) radio, a the power consumption can be reduced by an order of magnitude over existing radio ...

Even today as a highly technical and advanced world civilization, the physiology of deep sea fish and invertebrates continues to remain mysterious and poorly known. Past specimen containers fail to either have the size or volume needed or lack the robustness for high pressure containment of in many cases, lack the repeatability necessary to ensure a reasonable lifetime of continuous use. The Tec ...

Voxtel has demonstrated efficient high-speed photon counting with thresholded linear-mode avalanche photodiode (APD) receivers using multi-gain-stage InGaAs/InAIAs APDs. In contrast to Geiger APDs, thresholded photon-counting linear APD receivers are thought not to suffer afterpulsing, and can support maximum count rates (MCR) up to 2 or 3 orders of magnitude faster than Geiger APDs. However, the ...

Not Available Today's manufacturing companies are concentrating their energy towards breaking the barriers between firms all along the supply chain to create a virtual enterprise whose goal is to operate as if the chain was a single entity. Breaking these barriers involves facilitating collaboration and communication at all levels of the enterprise. A key roadblock to this sort of facilitation is ...