Award Data

Thin-film, lightweight, large-area flexible inorganic solar cells have shown promise to meet the militarys remote power needs on the battlefield. However, thin film solar cells normally have inferior conversion efficiencies due to limited absorption of sunlight by the thin active layer. Various approaches have been investigated to improve conversion efficiencies of thin film solar cells. Among the ...

An innovative and fundamental approach to measure far field noise of a helicopter using a hot-air balloon as an acoustic measurement platform is described. The technique, featuring a microphone suspended beneath the basket of a hot-air balloon, is used to obtain acoustic data above, in, and below the horizon plane of a helicopter in forward flight. This approach is postulated to have many advantag ...

Triton Systems, Inc. and its academic partner are proposing to fabricate an innovative highly conductive and transmissive thin layer to replace ITO on large area, lightweight solar cells. Part of the proposed approach will be to texture the surface of the coating to improve light transmission into the solar cell. Triton will work with a manufacturer of flexible solar panels for the Army, who wil ...

A human produces more than 100 Watts of waste heat during normal activity. If a fraction of this heat energy can be harvested it can replace the stored chemical energy in one or more of the batteries typically carried by soldiers in the field. The current generation batteries, such as the BB2590 are bulky and rigid. The PowerFelt material developed by Wake Forest University is ideally suited for h ...

To achieve the goals of this program improving spectral coverage and output power of monolithic QCL sources - we propose to develop in collaboration with MIT Lincoln Laboratory a broadly tunable high power source that is based on Eos proprietary QCL array technology. The current generation of Eos commercially available fully packaged QCLAs (The Matchbox) can be tuned over a wavelength range of u ...

Random numbers are essential for a growing number of modern applications. As computer speed and communications bandwidth have increased the potential for practical streaming cipher and large-scale Monte Carlo simulations have become technologically feasible. For these and other applications, ultrafast random number generators are essential. This is intuitively clear. Additionally, however, the ide ...

This proposal addresses the problem of PCSS/laser trigger integration using a single monolithic laser diode array, thus simplifying the entire optical delivery network necessary for efficient operation of PCSSs. The proposal constitutes a logical continuation of Phase I effort where the main focus was on the detailed design of the PCSS/laser diode array (LDA) integrated architecture. In Phase II ...

Antimicrobial treatment of military textile systems is intended to provide enhanced protection to the Warfighter in the field by preventing colonization of harmful bacteria that cause problems such as odor, dermatitis, impetigo, cellulitis, and other skin irritations. Current treatments can impart antimicrobial functionality to textiles; however, they all possess broad-spectrum antimicrobial activ ...

Spontaneous emission is a quantum mechanical process that represents the main source of phase noise in state-of-the-art semiconductor lasers, limiting their coherence, and their suitability for high-speed communication and sensing applications. This proposal aims to develop ultra-high coherence semiconductor lasers on the Silicon/III-V platform with a quantum linewidth of

Few-cycle mid-infrared lasers are in high demand for a variety of practical applications including remote sensing of chemical and biological species. NP Photonics and the University of Arizona propose to develop a wavelength tunable and power-scalable optical parametric laser system covering 8-10 micron and capable of producing collimated few-cycle pulses with pulse energy > 100 microjoules. A ful ...