Scientists discover rare deep-sea hydrothermal system in Western Pacific producing massive hydrogen emissions
Peer-Reviewed Publication
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Dalian Institute of Chemical Physics, Chinese Academy Sciences
Chinese Academy of Sciences Headquarters
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Institute of Atmospheric Physics, Chinese Academy of Sciences
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Institute of Atmospheric Physics, Chinese Academy of Sciences
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Chinese Academy of Sciences Headquarters
Institute of Atmospheric Physics, Chinese Academy of Sciences
Dalian Institute of Chemical Physics, Chinese Academy Sciences
Chinese Academy of Sciences Headquarters
Dalian Institute of Chemical Physics, Chinese Academy Sciences
Dalian Institute of Chemical Physics, Chinese Academy Sciences
Chinese Academy of Sciences Headquarters
Institute of Atmospheric Physics, Chinese Academy of Sciences
Chinese Academy of Sciences Headquarters
Updates every hour. Last Updated: 13-Aug-2025 16:11 ET (13-Aug-2025 20:11 GMT/UTC)
Updates every hour. Last Updated: 13-Aug-2025 16:11 ET (13-Aug-2025 20:11 GMT/UTC)
UCLA and Broadcom researchers introduced the design and fabrication of a broadband, polarization-insensitive unidirectional imager operating in the visible spectrum. This device was fabricated through wafer-scale lithography on high-purity fused silica, offering high optical transparency, thermal stability and ultra-low loss. This work marks the first wafer-scale multilayer diffractive processor designed for visible imaging, enabling scalable, high-throughput production for advanced applications such as intelligent imaging, optical sensing, privacy protection, and all-optical information processing.
Achieving high specific detectivity at room-temperature, comparable to background-limited mid-infrared (MIR) performance, has been a longstanding challenge in the MIR optoelectronics. Towards this goal, scientist in Singapore designed a bipolar-barrier tunnel heterostructure, which effectively suppresses dark current while facilitating the tunneling of photogenerated carriers, enabling high-sensitivity mid-infrared photodetection. The design will open new avenues for advancement of next-generation infrared optoelectronic devices.
Recently, scientists in China experimentally realized a class of three-dimensional spatiotemporal wavepackets with spherical harmonic symmetry. This achievement is made by exploiting the mathematical analogy between the paraxial wave equation for spatiotemporal optical fields and the potential-free Schrödinger equation in quantum mechanics, utilizing their self-developed spatiotemporal light field modulation apparatus. Such spherically symmetric spatiotemporal light fields show promising potential for applications in photonic quantum emulator and particle manipulation, among other fields.
Quantum Key Distribution (QKD) enables information-theoretic secure communication based on quantum physics. A new study by Danish, Austrian, and Canadian researchers has demonstrated composable secure key generation against collective attacks over 20 km fiber using discrete-modulated Continuous-Variable QKD and modern numerical security proof methods. This marks the first practical implementation of a long-theorized protocol, combining high key rates, standard telecom compatibility, and rigorous security guarantees - an important step toward real-world quantum-secure communication in metropolitan networks.