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Next-generation algorithms and sensors for detecting chemical threats put through their paces in SIGMA+ program. May hold promise for military use in development of large region scale chemical, biological, radiological, nuclear, and explosive threat threat detection networks. DARPA’s SIGMA program, which began in 2014, has demonstrated a city-scale capability for detecting radiological and nuclear threats
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. “The applications for this research are considerably broad,” said Dr. Alexander J. Giles, research physicist, NRL Electronics Science
Researchers have demonstrated a new mode of electromagnetic wave, called a “line wave,” which travels along an infinitesimally thin line along the interface between two adjacent surfaces with different electromagnetic properties. The scientists expect that line waves will be useful for the efficient routing and concentration of electromagnetic energy, such as light, with potential applications