QuantumCTek(SH:688027) Zheng Quan Ri Bao Wang·2025-10-13 13:13Core Insights - China has achieved the mass production of the world's first four-channel ultra-low noise semiconductor single-photon detector, marking a leading position in single-photon detection technology, which is crucial for applications in quantum communication, single-photon radar, biological fluorescence imaging, deep space laser ranging, and single-photon imaging [1][2] Group 1: Technology and Innovation - The single-photon detector is likened to an "eye" with extraordinary vision, capable of precisely capturing and identifying individual photons, serving as a core component in systems like quantum key distribution and laser radar [1] - The technology's challenges included achieving low temperature, low noise, and multi-channel capabilities within a compact refrigeration unit, with the lowest working temperature reduced from -50°C to -120°C, and dark noise levels decreased by approximately 90% to about 100Hz [1][2] Group 2: Product Features and Performance - The innovative four-channel integrated architecture allows the single-photon detector to be one-ninth the size of international single-channel products, enabling complex detection tasks that previously required multiple detectors [2] - The product's maximum detection efficiency has improved from 25% to 35%, enhancing sensitivity to extremely weak light [2] Group 3: Strategic Implications - The advancements in the single-photon detector enhance China's self-sufficiency in core components and devices in quantum information technology, as stated by the director of the Anhui Quantum Information Engineering Technology Research Center [2] - The product is already serving domestic research institutions and has the capability for mass production and delivery, with future developments focusing on miniaturization, chip integration, and scaling applications for major projects like next-generation quantum communication networks and high-precision laser radar [2]