Radio spectrum is pricey. Operators drop billions at auction to lock down licensed frequency bands, and every single ...

Spatial modulation (SM) and multiple‐input multiple‐output (MIMO) systems represent a significant advance in wireless communication technology. By utilising the spatial dimension, SM encodes part of ...

Active metadevices integrated with semiconductors. (a) Hybrid silicon-metallic resonators for all-optical ultrafast active metamaterials. (b) Broadband metamaterial frequency switch with femtosecond ...

Copper cabling has been the workhorse for moving data inside of AI and HPC data centers, but fiber is nipping at its heels. Optics brings three possible bandwidth multipliers — wavelength-division ...