The evidence is solid but not definitive, as the conclusions rely on the absence of changes in spatial breadth and would benefit from clearer statistical justification and a more cautious ...

Spatial control of the phase and amplitude of a laser beam is useful for applications ranging from imaging and holography to interferometry and optical tweezers, reports Neil Savage. Digital spatial ...

Accurate and cost-effective indoor localization re-mains a critical challenge for smart environments. Traditional fingerprint-based methods require measurements from multiple access points (APs), ...

Abstract: In this conference paper, a method based on the principle of array superposition is proposed to realize both beam shaping and amplitude-phase modulation based on a binary reflectarray.