A new patterned spintronic emitter enables room-temperature control of terahertz wave polarization.

Terahertz (THz) waves are located between microwaves and infrared light in the electromagnetic spectrum. They can pass ...

Researchers from Beihang University in China have created a spintronic THz emitter with a microscale stripe pattern that ...

Simply rotating the emitter allows for flexible and efficient switching between linear, elliptical, and circular polarization states. Critically, the device maintains high-quality circular ...