NRL conducts first test of solar power satellite hardware in orbit

WASHINGTON – U.S. Naval Research Laboratory engineers launched PRAM, the Photovoltaic Radio-frequency Antenna Module, aboard an Air Force X-37B Orbital Test Vehicle on May 17 as part of a comprehensive investigation into prospective terrestrial use of solar energy captured in space. More

Researchers transmit energy with laser in ‘historic’ power-beaming demonstration

WASHINGTON — During a three-day-long tech demonstration at the David Taylor Model Basin at the Naval Surface Warfare Center in Bethesda, Maryland, attendees gathered to see a long-range, free-space power beaming system. Attendees this day, May 23, could see the system itself—the two 13-foot-high towers, one a 2-kilowatt laser transmitter, the other a receiver of specially designed photovoltaics. But the laser that was beaming 400 watts of power across 325 meters, from the transmitter to the receiver, was invisible to the naked eye. More

NRL Research Paves Way Toward Development of New Monolayer Materials

Scientists at the U.S. Naval Research Laboratory (NRL) have discovered the reason for the large variations observed in the optical properties of new single monolayer semiconductors such as tungsten disulphide (WS2). Single monolayer transition metal dichalcogenides (TMDs), such as WS2, are an emerging class of materials that exhibit many promising optoelectronic properties, with the potential for future device applications. More

Materials Research Team Lights the Way for More Efficient LEDs

WASHINGTON — Researchers at the U.S Naval Research Laboratory (NRL) Center for Computational Materials Science, working with an international team of physicists, have revealed that nanocrystals made of cesium lead halide perovskites (CsPbX3), is the first discovered material which the ground exciton state is "bright,” More

NRL Improves Optical Efficiency in Nanophotonic Devices

WASHINGTON — A team of physicists, headed by the U.S. Naval Research Laboratory (NRL), have demonstrated the means to improve the optical loss characteristics and transmission efficiency of hexagonal boron nitride devices, enabling very small lasers and nanoscale optics. More

NRL Clarifies Valley Polarization for Electronic and Optoelectronic Technologies

WASHINGTON – An interdisciplinary team of scientists at the U.S. Naval Research Laboratory (NRL) has uncovered a direct link between sample quality and the degree of valley polarization in monolayer transition metal dichalcogenides (TMDs). In contrast with graphene, many monolayer TMDs are semiconductors and show promise for future applications in electronic and optoelectronic technologies. More

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