全球首款四通道超低噪声半导体“单光子探测器”量产

Core Viewpoint - The world's first four-channel ultra-low noise semiconductor single-photon detector has been mass-produced in Hefei, marking a significant advancement in quantum information technology and positioning China as a leader in this field [1][3][6]. Group 1: Product Development - The single-photon detector is likened to an "eye" with extraordinary vision, capable of accurately capturing and identifying individual photons, essential for quantum key distribution, fluorescence lifetime imaging, and laser radar systems [1][3]. - The device has set world records in detection efficiency, dark noise levels, and integration, indicating a leap in China's single-photon detection technology [3][6]. - The development team, including the leading quantum technology company GuoDun Quantum, overcame significant technical challenges over three years, achieving a minimum operating temperature of -120°C and reducing dark noise levels by approximately 90% to about 100Hz [4][5]. Group 2: Technical Innovations - The innovative four-channel integrated architecture allows the new detector to be one-ninth the size of international single-channel products, enabling complex detection tasks previously requiring multiple devices to be performed by a single unit [5][6]. - The maximum detection efficiency has been increased from 25% to 35%, enhancing sensitivity to extremely weak light [5]. Group 3: Market Impact and Future Prospects - The new product has already been adopted by top domestic research institutions and is ready for mass production and delivery [6]. - GuoDun Quantum plans to continue developing products along the lines of miniaturization, chip integration, and scalability for applications in next-generation quantum communication networks, high-precision laser radar, and deep space exploration [6]. - Following the announcement of the 2025 Nobel Prize in Physics for contributions to quantum mechanics, quantum technology stocks have seen significant market activity, with GuoDun Quantum's shares rising by as much as 17.91% [7][8].