Optics Letters

Researchers from The University of Osaka have proposed a compact LED design that directly emits circularly polarized light using a nanoscale GaN metasurface integrated onto the device. This design removes the need for bulky optical components traditionally used to create polarized light and could help enable smaller optical systems for applications such as 3D displays, augmented reality, and photonic technologies.

Researchers at Tohoku university have addressed one of the key challenges of electromagnetic waves in the terahertz frequency range by developing a new type of tuneable filter for signals in the terahertz wave band.

A new apparatus improves how we study the effects of aiming high-field terahertz radiation at cells, with implications for regenerative medicine.