Semiconductor lasers have become the most widely utilized form of coherent light emitters. Aluminum gallium arsenide is the prototype material system in heterostructure laser technology. New fabrication techniques that are ...

This work explores regulation of forward speed, step length, and slope walking for the passive-dynamic class of bipedal robots. Previously, an energy-shaping control for regulating forward speed has appeared in the ...

Finally, new techniques of scientific visualization, which is an integral part of computational science research, are explored in the context of boundary element method. This investigation includes developing new modules ...

This work seeks to explore devices integral to the next generation of power electronics. To do this, gallium nitride (GaN) based Schottky barrier diodes (SBDs) are fabricated, tested, and characterized. The following is ...

AlGaN/GaN high electron mobility transistors (HEMTs) have shown promising high speed performance, both high microwave power and low microwave noise. In this dissertation, the millimeter-wave and microwave power performance ...

Together with the massive and rapid evolution of computer networks, there has been a surge of research interest and activity surrounding network security recently. A secure network has to provide users with confidentiality, ...

Microeconomic equilibrium problems are intimately related to game theory, but the current state of knowledge for several types of microeconomic problems is limited. This dissertation rigorously addresses several of these ...

In this thesis, we provide mathematical formulations for and investigate a number of problems that arise in the security of some emerging wireless technologies. First, we address the problem of secure communication between ...