Milan, 13^th January 2025  - The Politecnico di Milano has created the first integrated and fully tunable device based on spin waves, opening up new possibilities for the telecommunications of the future, far beyond current 5G and 6G standards. The study, published in the journal Advanced Materials, was conducted by a research group led by Riccardo Bertacco of the Department of Physics of the Politecnico di Milano, in collaboration with Philipp Pirro of Rheinland-Pfälzische Technische Universität and Silvia Tacchi of Istituto Officina dei Materiali - CNR-IOM.

A key challenge in parallel adaptive Cartesian grid generation is significant computational load imbalance during k‑d tree searches. A new Dynamic Partition Weight approach, published in the Chinese Journal of Aeronautics (https://doi.org/10.1016/j.cja.2025.103921), solves this by predicting each cell’s required k‑d tree iterations and performing intelligent load rebalancing. This method enables the generation of billion‑cell grids for complex aircraft models in less than a minute, offering a breakthrough for high‑fidelity CFD simulations.

Researchers from the Optics Group at the Universitat Jaume I in Castellón have managed to correct in real time problems related to image aberrations in single-pixel microscopy using a recent technology: programmable deformable lenses. The new method was described by the research team in an open-access article recently published in Nature Communications and is part of the development of the European CONcISE project.

The solution proposed by this team combines an adaptive lens (which “shapes” the light wavefront in real time) with a sensor-less method that evaluates image sharpness directly from the data, without complex algorithms. This approach corrects distortions caused both by the system and by the sample itself, producing sharper images, close to the physical resolution limit, without adding complexity to the microscope.

This adaptive lens is known as a “multi-actuator adaptive lens” (M-AL), which can be easily integrated into the system without significantly modifying the traditional configuration of a single-pixel microscope based on structured illumination. These types of lenses consist of an optically transparent and deformable membrane (similar to a thin sheet of glass or polymer) that can change shape via actuators distributed around or behind it.

Energy-efficient buildings are promising for sustainable development and energy consumption as per environmental, social, and economic criteria. Recently, researchers from Hanbat National University, and Kongju National University, Republic of Korea, have proposed polymer-dispersed liquid crystal-impregnated switchable thermochromic transparent woods that demonstrate excellent ultraviolet blocking performance for smart windows, promoting indoor illumination, privacy, and human health. The novel innovation can help pave the way for next-generation energy-efficient buildings.

Using muon spin rotation spectroscopy, researchers from Japan and Canada successfully captured the rapid conversion of an imidoyl radical into a quinoxalinyl radical occurring within nanoseconds. The technique enabled real time detection of a highly reactive aromatic heterocyclic radical generated during the isocyanide insertion reaction, using muonium as a molecular tracker. The discovery is expected to advance particle-driven radical chemistry—exploring functional properties and offering new strategies for molecular transformation reactions.