NEWSROOM

In this study, researchers developed an ultrafast infrared near-field optical microscopy technique that combines nanoscale spatial resolution and an approximately 150-femtosecond temporal resolution with a spectral resolution of about 10 cm⁻¹.

Credit: Caltech Three years after a team of Caltech scientists showed that pairs of entangled photons could double the resolution of a light microscope, the same lab has figured out a way to double down on that improvement. They have now achieved a fourfold resolution boost compared to a classical microscope, using a new optical design that sends one of the entangled photons through the microscope's optics three times rather than just once. The work, led by Lihong Wang, the B

Researchers at the University of Science and Technology of China have demonstrated skin mode tunability in photonic Floquet lattices. A potential applied at one boundary isolates a skin mode at the opposite boundary, turning it into a self-healing state that recovers its profile after disturbance. The approach enables control of non-Hermitian wave dynamics for mode routing and optical switching. Published in PhotoniX.

An international team from École polytechnique, Collège de France, and HZDR has experimentally realized an all-optical photonic time crystal. Using HZDR’s TELBE terahertz source, they strongly modulated the optical properties of a plasmonic metamaterial on picosecond timescales. This enables ultrafast control of light in the terahertz range and opens paths toward new lasers and optical technologies. Published in Nature.

Researchers observe how a photoinduced hidden state forms within 30 femtoseconds

Wits and UEA researchers reveal a new free-space route to chiral light for sensing and photonics.