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Focal Point on Emerging Photonic and Quantum Technologies in Japan

Japanese researchers and companies investing in new photonic-crystal surface-emitting lasers (PCSELs) think halving laser-manufacturing energy consumption might be possible. But researchers must still enlarge prototype PCSELs for this to happen. Meanwhile, a Japanese government funded photonics and quantum technologies programme has also produced new PCSEL sensors for robotics, unhackable quantum communication networks and atomic-scale materials-processing AI. As this new wave of technologies matures, Japan's long-standing strength in optics, photonics and manufacturing position it ideally to lead global markets.

A photonic-crystal surface-emitting laser developed by Kyoto University.

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