Department of Space

High-EfficiencyFiber Laser Generating up to 528th-OrderOrbital Angular Momentum Light

Abstract Structured light lasers carrying orbital angular momentum (OAM) have demonstrated considerable potential across diverse research fields and practical applications. Despite great progress in exploring this new degree of freedom of light, it remains challenging to achieve...

Assessment of environmentally suitable sites for solid waste sanitary landfill using analytical hierarchy process (AHP) and GIS in Uyo and environs, South-South Nigeria

Abstract Rapid urban growth in the Global South makes it harder to choose infrastructure corridors, especially in sensitive coastal basins. This study introduces a spatial decision-support framework tailored to local conditions. It combines the Delphi technique, Analytical Hierar...

Defect Landscapeand Stability of High-Entropy Carbides

Abstract High-entropy carbides (HECs) can be stabilized as single-phase solid-solution microstructures by kinetically trapping a “high-entropy state” under ambient conditions; however, such microstructures may represent metastable states rather than true thermodynamic equilibrium...