Development of a chaotic light receiver for secure communication in hostile environments
Peer-Reviewed Publication
Updates every hour. Last Updated: 8-Sep-2025 15:11 ET (8-Sep-2025 19:11 GMT/UTC)
Development of a new type of optical receiver, able to restore chaotic signals in free-space optical communication links distorted by atmospheric turbulence. By use of a system of optical antennas integrated into a programmable photonic chip, the receiver can adapt in real time, maintaining the integrity of the signal even in harsh atmospheric conditions. The study by a team of researchers led by Télécom Paris and the Politecnico di Milano, has just been published in Light: Science & Applications, and paves the way for the use of chaos-based encryption for secure, high-speed communication in hostile environments.
New research will help scientists predict where and when animals will move, a task which is becoming more urgent, given the current rapid pace of global change.
On our planet, at any one moment, billions of animals are on the move. From migratory birds, insects, marine mammals and sharks connecting distant continents and seas, to bees and other insects pollinating our crops, to grazing animals roaming across the plain. The study of animal movement has grown fast in recent decades. However, much of this work still focuses on describing and understanding current patterns, rather than predicting future movements.
The problem is that using the past and present as a guide will be of limited use given how quickly environments are changing, due to new patterns of land use, climate change, and human population shifts.
This is where the new research comes in. It sets out a framework that can help scientists provide more robust predictions in rapidly changing environmental conditions. It can help to conserve species, but also to protect wider ecosystems and our environment and the many services these provide to human wellbeing.
The Korea Electrotechnology Research Institute (KERI) and the Korea Institute of Materials Science (KIMS) have jointly developed the 'spray drying technology-based high-performance dry electrode manufacturing technology' for the realization of high-capacity secondary batteries.
Recently, a team by Peng-An Zong from the School of Materials Science and Engineering at Nanjing Tech University in China recently developed a dual-mode temperature-pressure sensor based on a core-shell carbon fiber/Ag2S film fabricated using a facile electrodeposition.
A sea turtle’s shell is a masterpiece. A new study reveals that marine turtle shells combine flexibility and strength to protect against predators like sharks and stress while optimizing movement. This adaptation highlights the complex design of their shells and provides insights into this remarkable balance of strength and flexibility, which has allowed them to survive in the ocean for millions of years – an example of evolution shaping species in an environment.
Imagining a future where we can monitor the health of the planet's forests and crops with millimetre precision is no longer science fiction. This is the objective of INTERSEN, a project included in the 2021 State Research Plan and led by the Visual Engineering (eViS) research group at the Universitat Jaume I in Castelló, which is committed to the intelligent combination of spatial data to improve the way we understand and care for our environment.