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Light has angular momentum properties. Circularly polarized or elliptically polarized beams carry spin angular momentum (SAM), while beams with helical phase wavefronts carry orbital angular momentum (OAM). During the interaction between light and particles, the transfer of angular momentum can generate optical torque, driving particles to rotate. Among them, the transfer of optical spin angular m...
For centuries, people have known that light exhibits wave like behavior in certain situations. When light passes through certain materials, they can change the polarization of light waves (i.e. the direction of oscillation). The core components of optical communication networks, such as optical isolators or photodiodes, utilize this characteristic. This type of component allows light to propagate ...
Recently, the team of Yang Tao-Yang Xiaoguang, a researcher at the Key Laboratory of Materials Science of the Institute of Semiconductors of the Chinese Academy of Sciences, and Lu Dan, a researcher, together with Ji Chen, a professor at the Zhijiang Laboratory of Zhejiang University, have made important progress in the research of high-power, low-noise quantum dot DFB single-mode lasers.Distribut...
In today's rapidly developing technology, laser engraving technology is like a mysterious magician, constantly demonstrating amazing skills. In this field full of creativity and competition, Atomstack stands out with its outstanding technology and innovative spirit, becoming a leader in the new track.As the only enterprise in the semiconductor laser engraving machine industry with an annual shipme...
Professor Zhang Huaijin and Yu Haohai from the Institute of Crystal Materials of Shandong University (the State Key Laboratory of Crystal Materials) proposed a spatial harmonic modulation strategy, which realizes the phase matching conditions that can be manipulated artificially in the new quartz crystal, and realizes the effective frequency doubling within the VUV range. The relevant research is ...