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This breakthrough in trapping ultrafast hybrid light particles at room temperature using perovskite metasurfaces represents a significant step toward practical optical computing and self-retraining devices. By overcoming the Klein paradox, this research directly addresses fundamental limitations in signal processing efficiency that have hindered the development of next-generation photonic hardware. The ability to manipulate nearly massless particles without cryogenic cooling makes scalable quantum-inspired optical chips more feasible for real-world deployment.

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ITMO team traps ultrafast light for future optical chips

Quantum ZeitgeistSeptember 17, 20264 min read

An ITMO University team “captured” ultrafast hybrid light particles, once thought impossible, using a femtosecond laser and metasurface.

Image: Dmitry Grigoryev / ITMO NEWS · news.itmo.ru ITMO University scientists, working with colleagues from multiple institutions, report capturing ultrafast hybrid light particles previously considered impossible to trap. The team used a femtosecond laser and a microscopic pattern etched onto a thin perovskite film to overcome the limitations of the Klein paradox, a challenge hindering the development of optical computing. “We made a film that’s 1,000 times thinner than a human hair…

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