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As far as quantum physics is concerned, one of the most striking predictions is that matter can be produced entirely from light (i.e., photons). Pulsars are an example of an object capable of achieving this feat.In a recent study reported in the journal Physical Review Letters, a research team led by scientists at Osaka University simulated the conditions that allow photons to collide with photons...
Recently, Tong Cunzhu, the research team of the Chinese President of Science, Chunguang Institute of Mechanical Mechanics, made important progress in the research field of photonic crystal surface emitting lasers (PCSEL), proposed a three lattice structure and achieved a low threshold 1550nm PCSEL. Relevant achievements were published in Light: Science and Application vol.13, 442024, and the famou...
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...
Recently, Coherent, an industrial laser technology giant, announced the launch of a new 2D laser cutting head - CUT12, which combines excellent performance, high versatility, and profound value for the global flat cutting market. Image source: CoherentThe CUT12 sheet metal laser cutting processing head is perfectly compatible with fiber lasers in the power range of 4 kW-12 kW (continuous wave),...
IntroductionVortex beams carrying orbital angular momentum (OAM) are widely used for high-throughput optical information multiplexing, and achieving on chip, small-scale vortex lasers is crucial for promoting the industrial implementation of vortex light reuse technology. Recently, Gu Min, an academician of Shanghai University of Technology, and Fang Xinyuan, an associate professor of Shanghai Uni...