We are developing DWELL-QDIPs based on InGaAs QDs embedded in the lattice-matched GaAs/AlGaAs materials system, in which we have extensive experience in growth and fabrication of FPAs. Using this lattice-matched materials system we should be able to stack 50-100 InGaAs QDs in a GaAs/AlGaAs DWELL device structure. Therefore, we expect at last an order of magnitude higher quantum efficiency and responsivity from InGaAs/GaAs/AlGaAs DWELL-QDIPs compared to lattice mismatched InGaAs/InGaAs/GaAs DWELL-QDIPs.

Increasing the discharge capacity of Li-(CF)n batteries, while maintaining high practical specific energy, would open new applications for these battery cells. This issue is addressed here.

This innovation proposes to use the device housing the tube to also be the main battery package to maximize energy density while minimizing excess packaging materials. The battery will use a liquid electrolyte consisting of a Li-based salt and appropriate solvent.

The uniqueness is of this application is: (a) fast focus modulator, (b) generation of -20 kV voltage containment, (c) powering and protecting a 94-GHz, pulsed extended interaction klystron delivering 2-kW pulse RF power at 1.4% duty cycle, (d) develop cooling techniques for wave guides carrying such power for testing high power amplifier in thermal vacuum chamber.

A microstrip Yagi employing a dual offset aperture-coupled feed to obtain circular polarization was designed to operate at X-band (8.4 GHz). The X-band microstrip Yagi array designed in this work consists of three Yagi array elements, with each element having one reflector patch, one driven patch, and two director patches.