Award Data

N/A

Not Available This proposal describes an innovative, ultrashort pulse laser system offering environmental stability, compactness and extremely high efficiency. This will be achieved by the use of a novel diode-pumped, mode-locked ytterbium fiber laser and fiber pulse stretcher, followed by a diode-pumped Yb:YAG amplifier and compact grating compressor. This system will deliver the >5mJ, subpicose ...

Not Available We propose a proof of concept demonstration of micro-balloon vortex generators and micromachined hot film sensor arrays for active control of flow separation. This program is the first step toward the development of conformal micro-balloon vg appliques. Appliques fabricated with co-located microsensors and balloon vg's will provide a revolutionary closed loop, seamless flow control ...

Not Available The high performance, high power density combustors being proposed for IHPTET III must operate without exhinbintng combustion instability. There is a need to develop a time-accurate CFD combustion dynamics code that provides improved understanding of the acoustic/heat-release coupling and is able t predict the frequency and limit cycle of the instability. The code also needs to be p ...

N/A

Not Available Photonic Systems proposes a novel approach to significantly improve the RF performance, and drastically reduce the cost, of RF photonic links. The key technical innovation to be pursued in this work is the application of the cascade laser to increase the slope efficiency of directly modulated links. The slope efficiency achievable from the cascade laser should permit direct modula ...

Not Available Borates have an intrinsic band edge below 200 nm, which makes them attractive for optical applications in the deep UV. The birefringence of beta-BaB204 (BBO) is large enough to allow phase matching down to the band edge, so crystal growth and processing innovations that improve transmission and the damage threshold in the UV can have a beneficial effect on harmonic generation. This ...

Not Available Capacitors are formed by depositing a dielectric between two conductive plates. While fabrication techniques achieve outstanding levels of repeatabillity and consistency, many applications are difficult to fullfill with current manufacturing methods. A solid state resistor film may be trimmed to a certain value after deposition by the selective ablation of the resisting medium b ...

N/A

Not Available Recent activities in the development of electromagnetic directed energy for defense against missiles have focused on compact explosive driven sources of high power microwaves among several other technologies. There exist several issues which need to be addressed in order to bring this technology to fruition, one of which is the ferromagnetic material used in these sources. In Phase ...