Micro-patterning of spintronic emitters enables ultrabroadband structured terahertz radiation.
Hou-Tong ChenPublished in: Light, science & applications (2024)
Structured light beams offer promising properties for a variety of applications, but the generation of broadband structured light remains a challenge. New opportunities are emerging in the terahertz frequency range owing to recent progress in light-driven ultrafast vectorial currents through spatially patterning spintronic and optoelectronic systems.