Abstract:The technical objectives of this proposal are: (1) design a grating-coupled surface-emitting (GCSE) active-photonic-crystal (APC) 4.6 micron-emitting quantum-cascade laser (QCL) to deliver 15 W diffraction-limited CW power in the main lobe of the far-field beam pattern; (2)… more
Abstract:Spectral beam combination (SBC) of fiber lasers is the most practical approach to DEW-class HELs using diode-pumped fiber lasers. Use of conventional diffraction gratings to combine wavelengths is limited in that metal is inherently absorbing. Regardless of the metal layer thickness, optical power… more
Abstract:… in this range would invalidate such an approach. Recognizing this basic limitation, the proposed work will generate a high-quality tunable signal by heterodyning phase-correlated optical tones combining high power and low noise. In contrast to conventional RF-photonics… more
Abstract:… mapped onto the SWIR band since gain in conventional semiconductors does not scale beyond 1800nm, receiver sensitivity falls off rapidly after 1700nm, and conventional fiber loss is greatly increased beyond 1750nm. Consequently, if a SWIR equivalent of a low-noise NIR photonic… more
Abstract:… targets predicted for them. 2. To improve SEA with new methods and new ligand-physiology databases. To make the ligand- target-ADR association map more robust, we will improve the methods and databases underlying SEA. (a) We will develop descriptors of and filters for… more
Abstract:… and avoiding equipment damage from a potential hostile enemy intent on interfering with a vital communication link. The phenomenology understanding obtained during Phase I will enable Kord to optimize the design during Phase II to exploit the nature of FSSs and/or photonic … more
Abstract:…Band telemetry transmitter. The transmitter will be capable of transmitting in three separate sub-bands. The user will be able to select the band of operation as well as the desired ARTM waveform. LTCC will be utilized with susbsrate integrated components and filters to produce… more
Abstract:This proposal is focused on the development of very wide bandwidth, high efficiency power amplifiers for next generation EW, radar and wireless communication systems. High-Q tunable notch filters, coupled with high efficiency power appliers (PA) will be designed and analyzed.… more
Abstract:The proposed project will focus on the development of closed loop frequency control hardware and algorithms for control of high quality factor tunable microwave filters based upon evanescent mode resonators. The developed controller will be integrated with a representative… more
Abstract:This project will develop tunable notch filter for the mitigation of co-site interference and jamming sources. The novel filter technology explored in the Phase I program has displayed excellent potential to provide wide tuning capability, low out-of-band insertion losses, deep… more
Abstract:ABSTRACT: There is an opportunity to advance liquid crystal on silicone (LCOS) microdisplay technology to meet the next generation Head Mounted Display (HMD) requirements and pave the way for practical real time holography for holographic video displays and near to eye displays… more
Abstract:… in digital display technology, real time holography, and computational power present the opportunity to advance 3D displays to a new level of performance. HOLOEYE Systems, Inc. (HSI) is actively involved in the development of ultra-high resolution Liquid Crystal on Silicon… more
Abstract:PSI will leverage our extensive experience and unique capabilities in MMW photonics to design a compact, lightweight, frequency-agile MMW source combining wide, continuous, rapid tunability with superb phase noise and moderate output power. Such a source will have extensive… more
Abstract:In the proposed effort, we will leverage this extensive experience and capabilities to realize a frequency agile mmW radiometer that can cover the range of DC-110 GHz and can be scaled to DC-200 GHz under Phase II. Ours is a photonic system that multiplies and up-coverts a… more
Abstract:… methods and processes arose from recent progress in PDs and array of PDs based on modified uni-traveling-carrier (MUTC) thin-layered structures. The speed, bandwidth, and high power of these devices generate great interests of direct RF generation in microwave photonic… more
Abstract:…rmal antenna arrays. This work builds heavily on an operational passive millimeter-wave imager designed for rotorcraft DVE mitigation that utilizes optical upconversion to sample a distributed antenna array and a demonstrated distributed transmit array that utilizes photonic… more
Abstract:The effectiveness of synchrotron radiation science has been hindered by the limited availability of advanced diagnostics. In many cases, the capability to produce photon fluxes has outpaced the ability to detect and measure the resultant photons. Synchrotron applications are… more
Abstract:… Ultra-Violet) sources, is that of High Harmonic Generation (HHG), where a high intensity pulses are used to drive frequency conversion from a noble gas in a hollow core fiber. This configuration allows phase matching, and converts the near to mid-IR drive laser to photon… more
Abstract:ABSTRACT: Surface-to-air missiles (SAM) represent a serious threat to both military and civilian aviation. However, development of more effective countermeasures requires realistic simulation of the missile plume to improve recognition capability. Accordingly, the purpose of this program is to… more
Abstract:…inate the atmosphere surrounding a ship and produce 3-D images of atmospheric attenuation surrounding the ship. MAC-LIDAR constructs 3-D images of attenuation by combining data from time gated 2-D images of laser light scattered back to system with polarization filtering. Beam… more
Abstract:Adaptive Dynamics, Inc. (ADI) has developed the MAGIC(TM) (Multiple Adaptive Generalized Interference Cancellation) Filter, a revolutionary interference mitigation technology that offers these specific advantages: * It has demonstrated successful mitigation of multiple… more
Abstract:… wireless services, self-protection electronic countermeasures (CREW), and hostile jamming can saturate the spectrum and impair essential communications. Adaptive Dynamics, Inc. has developed the novel Multiple Adaptive Generalized Interference Cancellation (MAGICTM) filter,… more
Abstract:…terferer and noise ratio. ABF algorithms ability to suppress loud acoustic interference arriving in the sidelobe region of beams will reduce clutter and improve detection performance. Adaptive Methods proposes to apply our approach to Robust Adaptive Matched Filtering to… more
Abstract:… is a significant science and technology gap for photocathodes in the context of the development of high-current electron injectors for next generation light sources. Photocathodes that have high quantum efficiency (QE), that is to say number of electrons per photon, have… more
Abstract:…ements and provides automatic audio source switching based on user focus. The proposed advanced hearing aid willenable users to utilize hearing aids in more diversified conversational situations. Hearing aids perform poorly in noisy environments due to a limited ability to … more
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