NEWSROOM

Researchers have demonstrated a compact, fully integrated device that uses a carefully crafted mirror to generate a stable frequency comb with very broad bandwidth. The mirror they developed, along with an on-chip measurement platform, offers the scalability and flexibility needed for mass-producible remote sensors and portable spectrometers. This development could enable more accurate environmental monitors that can identify multiple harmful chemicals from trace gases in the

By leveraging the concept of chirality, or the difference of a shape from its mirror image, EPFL scientists have engineered an optical metasurface that controls light to yield a simple and versatile technique for secure encryption, sensing, and computing.

In a groundbreaking experiment, researchers from Tianjin University, Zhejiang University, Northeastern University and University of Science and Technology of China have directly observed anti-Klein tunneling (AKT)—a quantum paradox where chiral particles are entirely reflected instead of passing through an energy barrier. This long-sought quantum-like behavior is realized not with electrons, but with engineered sound waves in a custom-designed bilayer phononic crystal.

The chip, as thin as a strand of hair, uses two pairs of microring modulators to achieve unprecedented performance levels.

A group of DESY scientists together with colleagues from Finland and France has observed signatures of polariton-formation at extreme-ultraviolet (EUV) wavelengths for the first time. In general, polaritons are hybrid-states that emerge from the interplay of light and matter excitations - mostly observed under strong-coupling conditions.

MIT researchers have developed a novel AI hardware accelerator that is specifically designed for wireless signal processing. Their optical processor performs machine-learning computations at the speed of light, classifying wireless signals in a matter of nanoseconds.