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The 3500W free output blue semiconductor laser beam is output in a free space manner, with a rectangular spot directly acting on the material surface without the need for fiber optics or laser processing heads. This laser has a wavelength of 455 ± 10nm, with continuously adjustable power and a maximum output power of over 3500W. It is mainly used for non-ferrous metal cladding, quenching, etc., to...
Recently, Shanghai Jiao Tong University Wuxi Photon Chip Research Institute (CHIPX) located in Binhu District, Wuxi City, has achieved a breakthrough - the first 6-inch thin film lithium niobate photon chip wafer has been produced on China's first photon chip pilot line, and high-performance thin film lithium niobate modulator chips with ultra-low loss and ultra-high bandwidth have been mass-produ...
The team of Wu Dong, professor of the Micro/Nano Engineering Laboratory of University of Science and Technology of China, proposed a processing strategy of femtosecond laser two in one writing into multiple materials, manufactured a micromechanical joint composed of temperature sensitive hydrogel and metal nanoparticles, and then developed a multi joint humanoid micromachine with multiple deformat...
Typically, for lasers in optical communication systems, waveguide designs are used to achieve a single transverse mode. By adjusting the thickness of the surrounding area of the cladding layer and the etching depth of the ridge in the ridge waveguide device, a single mode device can be obtained. The importance of lasers is reflected in the following aspects:A chip without ridge waveguide design an...
Two dimensional transition metal chalcogenides have multi valley structures in their energy bands, giving them electron valley degrees of freedom, making them an ideal platform for studying multi body interactions. As the main mechanism of valley depolarization, the valley scattering process of free electrons or bound excitons is crucial for exploring excited state electron phonon interactions and...