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San Diego, CA, United States

Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase II | Award Amount: 750.81K | Year: 2011

SensorMetrix proposes to develop and demonstrate acoustic cloaking. Further, SensorMetrix will analyze the performance, determine methods to use as countermeasures. These efforts will be both analytic and experimental.

Agency: Department of Defense | Branch: Army | Program: STTR | Phase: Phase I | Award Amount: 150.00K | Year: 2014

SensorMetrix proposes to develop a short range imaging radar utilizing compressive sensing techniques to enable rapid image acquisition and update for purposes of providing real time detailed imaging for landing assistance to pilot during degraded visual environment conditions. The proposed technology combines compressive sensing techniques and active metamaterial technology enabling a route to dramatically reduce the physical hardware requirements, offering significant reductions in size, weight, and power as compared to traditional systems.

Agency: National Aeronautics and Space Administration | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 125.00K | Year: 2014

A thermophotovoltaic (TPV) system is a promising energy conversion device that generates the electric power from short wave infrared (SWIR) thermal radiation. However, it's low power throughput and poor conversion efficiency restricts the usage in practical applications. One solution for resolving these issues is to utilize a metamaterial emitter whose thermal emission band is spectrally matched to the energy conversion band of the TPV cell. However, typical frequency selective emitters (SE) emit only in a narrow frequency band, limiting the total power throughput of the TPV system. This proposal thus aims to experimentally investigate wideband metamaterial emitters, whose emission band is spectrally matched and utilizes the entire energy conversion band of the TPV cell. The innovative aspects of the proposed research are (1) to develop robust electromagnetic numerical simulation capabilities that incorporate experimentally measured material properties as a function of frequency, and device operation temperature into the design of the metamaterial emitter; (2) incorporate novel metal-nitride materials into the metamaterial structure, enabling optical property tunability through stoichiometric control, and wideband, spectrally matched thermal emission; (3) to fabricate and characterize a metamaterial emitter whose thermal emission band is spectrally matched to the energy conversion band of the target TPV cell. By improving not only the overall efficiency of TPV converters, but importantly the total power throughput, this technology will enable more efficient, compact electrical energy sources for a range of applications, which include power sources for rural and remote locations, solar power generation, waste heat recovery, and power sources for deep space exploration.

Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 148.09K | Year: 2012

This proposal effort seeks to develop electromagnetic enabled structural material composites. The need for such materials is found in such applications as the E2 rotodome. These structural composites can play a crucial role RF performance. The proposal seeks to address these issues by employing novel metamaterial solutions to provide better impedance matching interfaces and beam steering capabilities. Furthermore, these electromagnetic solutions can be directly embedded into existing structural composites with relative ease making them an attractive solution to problems found in the E2 series aircraft. Typically the RF radome structures serve mechanical purposes with the electromagnetic performance impact as an afterthought. Clearly, the impact that these structures have on the electromagnetic performance must be addressed for applications like the E2 rotodome. Fortunately, the concept of designing structural material with built-in electromagnetic functionality has become a novel and exciting concept, and the team at Sensormetrix has lead in the development of pioneering such composites by using various metamaterial concepts.

Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase II | Award Amount: 749.98K | Year: 2013

Metamaterial-based electromagnetic chaff offers new possibilities for air dispersed chaff functioning in microwave bands. During this program, the team will refine designs for several novel types of EM metamaterial chaff, fabricate, and conduct air dispersed measurements of their properties to confirm their predicted characteristics. In addition, the team will investigate methods of manufacture of chaff that is compatible with current ejection hardware.

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