Electronics has revolutionized our society by providing many devices e.g. laptops, palm pilots, digital cameras, household robots, etc. Every electronic system or device needs electric power to operate, whether it is from  walled AC supply or a battery. This electric power cannot be stored infinitely in any rechargeable device like …

Energetic materials and munitions are used across DoD in mission critical applications such as rockets, missiles, ammunition, and pyrotechnic devices. In these applications, energetic materials and munitions must perform as designed to ensure success in both training and combat operations. Every time a gun fires, lead leaches into the air. …

As the 21st Century battlefield becomes increasingly complex and asymmetrical, military forces are striving to harness network technology to gain an operational advantage, by transforming traditional linear command structures and linking sensors, unmanned vehicles, command posts and ground troops to achieve decision superiority for full spectrum dominance.   Network Centric …

More than 248 million people have been reported to be infected by the novel coronavirus globally and 5 million have died, according to a Reuters tally.   From herpes and legionnaires’ disease in the 1970s, to AIDS, Ebola, the severe acute respiratory syndrome (SARS), and now Covid-19, contagious diseases continue …

DARPA’s Defense Sciences Office (DSO) identifies and pursues high-risk, high-payoff research initiatives across a broad spectrum of science and engineering disciplines and transforms them into important, new game-changing technologies for U.S. national security. Current DSO themes include frontiers in math, computation and design, limits of sensing and sensors, complex social …

Conventional optical fibers are fabulously successful, but they have profound limitations. They contain a glass core at the center of the fiber through which light is transmitted. However, not only does this glass center limit the speed of the light as it passes through, but it also adversely affects other …

Gamma rays are ionizing electromagnetic radiation, obtained by the decay of an atomic nucleus. Gamma rays are given off by stars, and by some radioactive substances. Gamma-rays travel to us across vast distances of the universe, only to be absorbed by the Earth’s atmosphere. Different wavelengths of light penetrate the Earth’s …

The complexity of current 4G/5G phones comes from the need to cover multiple bands. Modern modems like the ones used in mobile phones are compatible with multiple transmission bands, including 3G, 4G LTE, Wi-Fi, and Bluetooth. The radio frequency front-end (RFFE) section of cellphone includes components like antennas, LNAs, filters, …