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Around the poles, ice accumulated over millions of years can reach depths of several kilometers. The undisturbed deep ice preserves information about the past. The air bags and particles trapped in the ice tell scientists what the atmosphere used to be like. This has aroused great interest among paleoclimatologists in glacier ice cores.By regularly sampling the ice core at its depth, they can reco...
In the wave of the digital age, Hong Kong, as an international business center, constantly explores the application of new technologies in the manufacturing industry. Among them, 3D scanning and reverse modeling technology is emerging, bringing a new production innovation to the manufacturing industry. This article will explore the application of 3D scanning and reverse modeling in Hong Kong, as w...
Recently, Zhang Weijun, a research team of the Anguang Institute of the Chinese Academy of Sciences, Hefei Academy of Materials, made new progress in atmospheric formaldehyde detection, and the related achievements were published on the international TOP journal Sensors and Actors: B. Chemical under the title of "Portable highly sensitive laser absorption spectrum formaldehyde sensor based on comp...
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...
Recently, according to media reports, industrial laser giant Coherent has signed a "preliminary terms memorandum" with the US Department of Commerce, which will receive up to $33 million in investment under the Chip and Science Act.It is reported that the funds will mainly be used to support the modernization and expansion project of the cutting-edge manufacturing cleanroom in Coherent's existing ...