In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat previously thought impossible, as light typically passes through other light ...
It needs space, weight, power and cooling which can be a challenge on our current surface combatants. The engineering center ...
Accurate high magnification of small aperture laser beams has traditionally been a challenge because the optics associated with such a beam expander are difficult to test using an optical ...
A possible alternative to active debris removal (ADR) by laser is ablative propulsion by a remotely transmitted electron beam ...