Abstract:Electromagnetic and particle modeling is an important part of the design and manufacturing of accelerator components, such as electron beam sources and RF accelerating cavities. The premier electromagnetic and particle modeling tools today allow users to exploit parallel computing… more
Abstract:Field emission cathodes are well known in the field of electron microscopy and extensively used because their very small source size (e.g.: sharpened end of a needle) can lead to very high- brightness electron beams. Recently, important developments in field-emission arrays have made them a… more
Abstract:In the proposed collider eRHIC, hadrons from one of the RHIC storage rings will interact with electrons accelerated in a six-pass energy recovery linac (ERL). The maximum energy of protons will be 250 GeV and the maximum energy of electrons will be 30 GeV. The machine will heavily rely on SRF… more
Abstract:Superconducting radio frequency (SRF) cavities are being successfully used for acceleration of charged particle beams worldwide. The application of the SRF cavities for manipulation of the beam properties in the transverse direction finds more and more applications. The use of superconducting… more
Abstract:The majority of radioisotopes used in the United States today come from foreign suppliers or are generated parasitically in large government accelerators and reactors. Both of these restrictions limit the availability of radioisotopes, especially short lived ones, and discourages the development… more
Abstract:Today"s high energy Q-switched Nd:YAG lasers are often pumped by stacks of multiple edge-emitting diode laser bars since the vertical-cavity surface-emitting laser (VCSEL) traditionally have been lower in efficiency. In this effort we are proposing a novel VCSEL design which overcomes the… more
Abstract:nLIGHT proposes a two dimensional Wavelength Stabilized Vertical External Cavity Surface Emitting Lasers (WS-VECSEL) as a pump source for Rb vapor alkali laser used in directed energy weapons. The integration of a narrow-band reflector (i.e. a volume holographic grating) into the external cavity… more
Abstract:nLight proposes the development of high efficiency, high average power 1550-nm laser transmitter system that is based on Er-doped fiber amplifier resonantly pumped by high efficiency 1532-nm fiber-coupled diode laser pumps. To meet the efficiency requirement for space communication, nLight proposes… more
Abstract:nLIGHT proposes the development of a multiple spectral band laser head that is based on a vertically stacked array of single emitter laser diodes. A key design aspect of this device is that the proposed laser head is largely based on a multi-emitter pump module that is currently under commercial… more
Abstract:ABSTRACT: The efficient coherent beam combination of a master oscillator power amplifier (MOPA) system requires a reduction in non-linearities of the power amplifier sections. Fiber non-linearities, such as stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS), provide an… more
Abstract:ABSTRACT: nLIGHT proposes the development of of an all-fiber, master oscillator power amplifier (MOPA) configuration that will meet the Air Force requirements for a 10 mJ, 300 ns pulsed laser source. With the exception of the output power amplifier fiber, this device will be based on commercial… more
Abstract:Based on the promising results obtained under Navy Phase I SBIR funding, nLight proposes a Phase II continuation toward the development of fiber-coupled high power and high efficiency diode laser pumps around 975 nm that operate at high ambient temperatures. Under the Phase I SBIR base program,… more
Abstract:ABSTRACT: The objective of this project is to develop sophisticated, graphical user interface driven software tools built on fully microscopic physics to design, guide and provide feedback on growth, fabrication and evaluation of semiconductor structures that provide optical gain in the critical 2… more
Abstract:DESCRIPTION (provided by applicant): In this Phase I we will develop and evaluate the first unit of an online serious game for foster and primary parents of neglected children. The goal of the training is to learn how parents in these two historically compartmentalized roles can improve their… more
Abstract:ABSTRACT: The objective of this proposal is to achieve an operational capability to produce daily forecasts of the extended extreme ultraviolet solar spectral irradiance (XUV/EUV/FUV SSI, hereafter EUV SSI) by delivering quantitative expectations of the EUV SSI at high-spectral resolution for every… more
Abstract:UHF radars at high latitude observe significant perturbations in measurements of amplitude, phase, range, and Doppler, caused by ionospheric disturbances. Without mitigation of these effects, there is no doubt that the natural ionosphere is a major issue in the performance of the important radar… more
Abstract:Many activities and technological systems prevalent in today’s society – air traffic control and air travel, the power grids, communications, deep-water drilling operations, human spaceflight – are vulnerable to the effects of sudden flares from our Sun. Because the propagation speed for… more
Abstract:ABSTRACT: Coordinate Registration (CR) of OTHR targets requires accurate real-time ionospheric modeling coupled with HF propagation calculations to convert radar-measured target signal delays and beam steers to geographical position. Our team is the developer of one of the most sophisticated… more
Abstract:This proposed study intends to develop a model and prototype of a flapping winged vehicle through the incorporation of elastic components. This will allow the manufacture of such vehicles with greatly enhanced flight duration and agility. Work will include the design, prototyping, and testing of… more
Abstract:Minimization of blade tip clearance in the high pressure turbine and high pressure compressor is very important for turbine efficiency, reduction of emissions, and lower rotor inlet temperature which extends the service life of the engine. This can result in increased payload, extension of mission… more
Abstract:A number of unique non-destructive testing techniques and fundamental research studies are enabled by the modern bright pulsed neutron sources. In addition to all the methods previously developed at continuous neutron sources the pulsed structure of neutron beam enables a number of novel… more
Abstract:DESCRIPTION (provided by applicant): Paroxysmal Nocturnal Hemoglobinuria (PNH) is an orphan disease characterized by severe anemia, kidney and liver failure, and ultimately death, if left untreated. In 2007, FDA approved the first complement inhibitor, Eculizumab (Soliris(R)), for the treatment of… more
Abstract:DESCRIPTION (provided by applicant): Complement system play a role in preventing inflammation and joint immobility. Osteoarthritis (OA), an inflammatory disease of the joints, is quite prevalent among the elderly and causes disability in nearly 10% of thepopulation over 55 years. Current… more
Abstract:DESCRIPTION (provided by applicant): The overall goal of this project is to discover novel antibiotics to combat important drug-resistant pathogens. We are running out of treatment options for pathogens such as S. aureus MRSA, vancomycin-resistant Enterococci (VRE), multidrug-resistant P. aeruginosa… more
Abstract:This Small Business Innovation Research (SBIR) Phase I project will develop a new platform technology to exploit previously inaccessible microbial diversity to discover novel broad-spectrum antibiotics. The project focuses on symbioses between marine invertebrates and microorganisms known to be rich… more
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