Science, Space and Technology News 2024
Researchers at the National University of Singapore have introduced “supercritical coupling,” a groundbreaking concept that greatly improves photon upconversion efficiency. By leveraging the phenomena of “bound states in the continuum” , the team has surpassed traditional limitations, enabling light to be trapped indefinitely in open structures.
The concept of “supercritical coupling” plays a pivotal role in addressing these challenges. This fundamentally new approach, proposed by a research team led by Professor LIU Xiaogang from the NUS Department of Chemistry and his collaborator, Dr Gianluigi ZITO from the National Research Council of Italy, leverages on the physics of “bound states in the continuum” .
Prof Liu said, “This breakthrough is not only a fundamental discovery, but represents a paradigm shift in the field of nanophotonics, altering our understanding of light manipulation at the. The implications of supercritical coupling extend beyond photon upconversion and offer potential advances in quantum photonics and various systems based on coupled resonators.”
Reference: “Directive giant upconversion by supercritical bound states in the continuum” by Chiara Schiattarella, Silvia Romano, Luigi Sirleto, Vito Mocella, Ivo Rendina, Vittorino Lanzio, Fabrizio Riminucci, Adam Schwartzberg, Stefano Cabrini, Jiaye Chen, Liangliang Liang, Xiaogang Liu and Gianluigi Zito, 21 February 2024,SciTechDaily: Home of the best science and technology news since 1998. Keep up with the latest scitech news via email or social media.
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