Cities have become the new battleground and Hybrid or Urban Warfare the greatest threat being waged by ISIS to Boko Haram to Hamas to Ukraine rebels.  The terrorists resort to Asymmetric Warfare exploiting the limitations and vulnerabilities of high-tech weapons and platforms, with relatively simple, low-cost countermeasures, tactics, and solutions. …

Photonics is emerging as a multidisciplinary new frontier of science and technology and is capturing the imagination of scientists and engineers worldwide because of its potential applications to many areas of present and future information and image processing technologies. Photonics is the analog of electronics in that it describes the …

Backscattering is a form of wireless transmission based on modulated reflection of external RF signals. Whereas conventional radios generate their own signals, backscatter radios transmit data by making tiny changes to reflected signals. This approach requires a minimal number of active components, promising simple low-cost battery-free operations.   Since the source …