Drones have become an essential platform for any military and they have changed the shape of recent conflicts. Their slow speed and small radar cross-section have created a lot of challenges for conventional sensors and weapons to detect and engage them. Many technologies have been developed for their detection and …

The control of electric currents in solids is at the origin of modern electronics which has revolutionised our daily life. The diode and the transistor introduced by Braun  and Bardeen and Brattain  are undoubtedly the corner stones of modern information technologies. Such devices allow for rectifying, switching, modulating, and even …