A study demonstrates that graphene-based materials can be used to efficiently convert high-frequency signals into visible light, and that this mechanism is ultrafast and tunable. These outcomes open ...

A major bottleneck with high-frequency wireless communications is the conversion from radio frequencies to optical signals and vice versa. This is performed by an electro-optic modulator (EOM), which ...

A graphene-based material converts incoming terahertz pulses (from above) into visible light in an ultrafast and controllable manner - optimal for data transport in optical fibers. (Image: B. Schröder ...

Terahertz light holds enormous potential for tomorrow's technologies. It might succeed 5G by enabling extremely fast mobile communications connections and wireless networks. The bottleneck in the ...