Abstract: This paper investigates the generation of vortex beams using a graphene metasurface at terahertz frequency band. A design of $20 \times 20$ unit-cell elements is described at 1.2THz. Each ...

Previously offered in 1-6X and 1-8X variants, new for 2026, Vortex is introducing the Strike Eagle 1-10X 24 mm FFP riflescope ...

Three months after Congress put the brakes on Air Force plans to retire its fleet of 162 A-10s this year, the versatile Warthog is back in the fight.

The new Mighty2 retains the compact style of its predecessor while adding a useful particle sensor and some other nice touches.

The J-16D has made possibly its first appearance in flight with PL-15 missiles, after being previously shown with air-to-air weapons only in static ...

The situation prior to this latest update was that RDNA 2 GPUs, like the AMD Radeon RX 6800, could run a version of FSR 4 via Optiscaler, but that doing so required the use of mod ...