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A team of researchers at the Fraunhofer Institute for Optoelectronics, Systems Technology and Image Development and Karlsruhe Institute of Technology are using single-photon avalanche diode (SPAD) arrays to achieve three-dimensional (3D) quantum ghost imaging.The new method, called "asynchronous detection," produces the lowest photon dose of any measurement and can be used to image light-sensitive...
Gallium nitride (GaN) vertical cavity surface emitting laser (VCSEL) is a semiconductor laser diode with broad application prospects in various fields such as adaptive headlights, retinal scanning displays, nursing point testing systems, and high-speed visible light communication systems. Their high efficiency and low manufacturing costs make them particularly attractive in these applications.Gall...
Chip level ultrafast mode-locked laser based on nanophotonic lithium niobate.Researchers have created a compact mode-locked laser integrated into a nanophotonic platform, capable of generating high-power and ultrafast optical pulses. The breakthrough in miniaturization of MLL technology can significantly expand the application of photonics.Innovation in mode-locked laser technologyTo improve the t...
Professor Wang Jian, Deputy Chief Designer of the Low Temperature Array High Precision Planeness Survey Wide Area Sky Survey Telescope (WFST) announced by the University of Science and Technology of China, and teacher of the State Key Laboratory of Nuclear Detection and Nuclear Electronics, School of Physics, University of Science and Technology of China, is a research team of the Chinese Academy ...
Researchers from Chalms University of Technology in Sweden have successfully improved the efficiency of optical microcombiners, making them a high-performance laser. This breakthrough will have a wide impact in fields such as space science and healthcare.The two rings in the figure are micro resonators, which play a crucial role in the implementation of efficient micro combs.The importance of micr...