Alexander Graham Bell discovered photoacoustics by accident when he was working on the development of the photophone, a followup to his recently developed telephone that operated via modulated sunlight instead of electricity. You would operate a photophone by speaking into its transmitter toward a mirror placed inside of it. The vibrations …

Gallium nitride (GaN) is hot. Even hotter is a race to integrate GaN with other materials to boost GaN’s performance further.   The power electronics industry has seen the theoretical performance limit reached by silicon MOSFETs and now needs to move to a new element. GaN is a wide bandgap, …

As the space domain has become more congested, the potential for intentional and unintentional threats to space system assets has increased. Space is also becoming another domain of conflict due to enhanced militarization and weaponization of space. There has been enhanced testing of Anti-satellite weapons (ASAT) and space weapons designed …