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Zinc Oxide has emerged as a key semiconductor that will have a broad range of applications in Opto-electronic and Spintronic devices. ZnO has a large band gap and has potential applications in Light Emitting Diodes (LED). Room temperature ferromagnetism in ZnO has the promise of building Spintronic devices such as laser and resonant tunneling diodes with high switching speeds and frequencies. Some ...

Two-dimensional planar photonic crystal technology offers the potential for compact optical signal routing and processing while realizing the advantages of massive parallelism through optical interconnection, low skew clock distribution, and resistance to electromagnetic interference. What has limited this potential to date is the enormous loss associated with current techniques in realizing sing ...

This Phase I Project will produce RABiTS-based YBCO CCs which are suitable for the manufacture of YBCO Coated Conductors with reduced AC losses. The improvements are based on a novel approach in the production of elements of the conductor. Anticipated AC losses will be analyzed for magnetic field and frequency conditions resembling those experienced by synchronous generator windings and air core ...

Zinc oxide is a versatile material, with a wide direct band gap (~3.3eV) with the potential for highly efficient light emitters and detectors, very high radiation hardness, and has high electromechanical coupling coefficients. In addition, transition metal doped ZnO has potential for sprintronics applications. This project will develop the mechanisms for realization of new spintronics devices ba ...

The proposed Phase I program is aimed at design and fabrication of a robust, AlGaAs-based epitaxial layer structure for terahertz quantum cascade (QC) lasers that can be grown by the metalorganic chemical vapor deposition (MOCVD) process. The ability to produce such epitaxial wafers at low cost is critical to the future widespread use of QC lasers. There are currently only three groups in the wo ...

This proposal focuses on multi-node collaboration in communication systems involving channels using space-time coding (STC) such that groups of antenna transmitters and receivers collaborate across nodes to produce and enhance spatial diversity patterns. This approach, called collaborative STC, not only exploits the spatial and temporal diversities but also explores the potential of collective co ...

The primary objective of this proposal is to design and fabricate novel structures of silicon light-emitting diodes (Si-LEDs) that are capable of producing ever-high electro-optical efficiency for all optics Si nanophotonics. Our strategies are based on Si-based photonic crystals. The success of the project will accomplish four tasks: (1) Novel design and fabrication of high efficient Si-LEDs base ...

In the field of electric space propulsion, specifically colloidal propulsion, there has been significant improvements of recent date in the development of small micro-fabricated arrays operating in the single Taylor Cone per emitter regime. To increase thrust, the density of 2-D arrays must be increased. The state-of-the-art employs silicon based MEMS fabrication techniques to effect suitable mult ...

Toyon Research Corporation and the University of California at Santa Barbara propose to develop algorithms for the dynamic management of sensors onboard small, autonomous Unmanned Air Vehicles (UAVs) to execute Cooperative Search, Acquisition, and Tracking (CSAT) of multiple moving ground targets. In our approach, UAV flight paths and sensor operations are dynamically selected in order to minimize ...

Toyon/UCSB proposes to research and design architectures for sensor networks to efficiently communicate to antenna array enabled collectors. Communication will take place in a coordinated fashion such that space-time coding can be employed. This technique can be exploited for a variety of purposes ranging from distribution of signal transmission, for even dispersion of communication load each sens ...