Abstract:ABSTRACT: Close integration of photonic devices with silicon complementary metal-oxide semiconductor (CMOS) electronics can yield significant performance improvements in many applications. The recent development of novel integrated structures in silicon including waveguides,… more
Abstract:In Phase I we successfully reached all goals and milestones in developing liquid crystal sensors that detected 100 ppb of each of four target gases (DMMP, hydrogen sulfide, nitrogen dioxide and ammonia) within 60 seconds. In Phase II, we propose to expand this detection… more
Abstract:… cost and size driver with an impact on the physical configuration of the GDPAA. In quantity the proposed Bulk Acoustic Wave (BAW) diplexers would be about 6 times less expensive and have a volume and weight of about 1/50 that of the coaxial ceramic diplexers. BAW filters have… more
Abstract:Directionally solidified (DS) superalloy blades provided the basis for substantial gains in turbine engine performance in recent decades. Now, single crystal (SX) nickel-base alloy blades can be grown directionally with interior passages for cooling air, enabling more advances… more
Abstract:Q-Peak, Inc. proposes to develop a new generation of infrared isolators based on high-transparency ceramic materials, which promise improved characteristics over equivalent single-crystal materials. These include the ability to scale to the larger sizes needed for high-power… more
Abstract:ABSTRACT: High power and low insertion loss WDM components will be developed. In manufacturing WDM components, solid core fibers in both polarization insensitive and polarization maintaining, will be pursued, along with photonics crystal fiber components. A… more
Abstract:…ems suffer from complexity due to the use of multiple nonlinear stages to achieve the desired wavelength and have issues with power scaling. The proposed system will consist of 2.5 um femtosecond regenerative amplifier system pumping a single OPA stage based on nonlinear crystal… more
Abstract:The Navy has invested significant resources in constructing, maintaining and updating various information systems/databases that contain data/information that needs to be manually filtered to detect/remove anomalies prior to transforming it to perform useful analyses. The… more
Abstract:ABSTRACT: Si photonic devices based on GeSn materials will be very important for the MWIR. The Air Force recognizes the need for next-generation high-performance photonic materials in the SWIR to MWIR infrared spectrum, due in part to the atmospheric high transmissive windows… more
Abstract:…, will partner with Professor Chris Wolverton from Northwestern University to develop a theory-driven compound discovery methodology. Our unique approach will involve high throughput DFT and data mining based approaches to both materials system screening and crystal structure… more
Abstract:We propose a novel suspended multiferroic thin film structure fabricated by semiconductor processing technologies as the basis for the approach to designing the multiferroic microstrip-based circuit elements such as tunable filters. The proposed approach
Abstract:Present day photoinjector cathodes have poor lifetime or inadequate quantum efficiency for advanced applications. In addition, the efficiency is constrained by the frequency up-conversion in the drive laser from infrared to ultraviolet photons. Novel nanofabrication techniques… more
Abstract:… physics based constitutive models into dual-phase models for titanium alloys. Crystallographic texture information will be stored locally at each element of the FEM simulation, and will evolve via physics-based texture evolution models. Typical crystal plasticity… more
Abstract:… through transistor-level IC simulations, thorough nonlinear systems analysis, and data-model fusion and noise handling simulations for ECG sensing. In Phase II, we will develop/validate a prototype, demonstrate multi-modal, model-based detection with noise filtering, and… more
Abstract:… future capabilities, systems, and threats. Adding MT technology to SimVentions roadmapping capability in the company"s Program Management and Planning (PMaP) tools suite will provide PEO LS users with the ability to assimilate, collate, organize, analyze, and filter… more
Abstract:Understanding imagery from unmanned automated systems in a timely fashion requires support systems for end users that can filter and preprocess massive data via complex vision and understanding. A new computer system that mimics both the bottom-up biological and top-down… more
Abstract:… than mass. Consequently, the measurement of NMs fit poorly within the pre-existing IH sampling paradigm. Real-time concentration monitors are ill-suited for personal sampling and cannot distinguish NMs from other airborne particles. Electron microscopy of filters… more
Abstract:… mechanical engine probe to provide multiple views of the flame radiance coming from various locations in a turbine engine thrust augmentor. The light from the probe is routed to an innovative adaptive spectral imager, which uses computer-controlled spectral filters to… more
Abstract:… exposure resulting from laser beams, and to
determine whether the detected radiant exposure levels exceed established maximum permissible exposure (MPE) limits. Spire will utilize
commercially available optical radiation detectors in combination with optical filters and… more
Abstract:Aircraft equipped with On-Board Oxygen Generating Systems (OBOGS) selectively filter nitrogen and other gaseous contaminants in air from the aircraft's engine to provide the aircrew with an oxygen enriched breathing gas. Under suboptimal operating conditions, toxic… more
Abstract:In the burgeoning field of quantum information science, the states of individual photons, or entangled photon pairs, are used for storage, processing and secure transmission of information. The single photon sources and detectors used in this field perform best in the… more
Abstract:… area materials are desired for a wide range of catalytic and chemical reaction devices, such as electrodes for fast-charging lithium ion batteries, compact catalytic converters for pollution control, high-speed crackers for petroleum reforming, high capacity filters and… more
Abstract:… engineered molds for investment cast turbine airfoils with the goals of reduced dimensional and metallurgical variability, finer cast features, and improved yield. The application target will be advanced high pressure turbine (HPT) airfoils cast in single crystal superalloys… more
Abstract:A processing approach, based on techniques developed for sonar, is proposed for radar decluttering. Phase I results showed the feasibility of the algorithm to provide reliable performance comparable to that achieved with sonar. The objective in Phase II is to further refine the algorithm, using… more
Abstract:… weapons program, and undermine the confidence of domestic and international partners. In response, TRI/Austin proposes utilizing an ultrasonic acoustic birefringence NDI technique to ensure turbine blade quality control. Instances of RX will be identified in single crystal… more
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