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Image source: Federal Institute of Technology in Lausanne, SwitzerlandScience and Technology Daily, Beijing, September 27th (Reporter Zhang Jiaxin) Commercial femtosecond lasers are manufactured by placing optical components and their mounting bases on a substrate, which requires strict alignment of optical components. So, is it possible to manufacture femtosecond lasers entirely from glas...
The femtosecond laser emits ultra short optical pulses with a duration of less than one picosecond, reaching the femtosecond level (1fs=10-15s). The characteristics of femtosecond laser are extremely short pulse width and high peak intensity.Ultra short pulse trains can minimize residual heat, ensure precise material processing, and minimize incidental damage. Its high peak intensity can induce no...
The hydrogel material made of nano cellulose and algae was tested as an alternative and more environmentally friendly building material for the first time. This study from Chalmers Institute of Technology and the Wallenburg Wood Science Center in Sweden demonstrates how to 3D print rich sustainable materials into various building components, using much less energy than traditional building methods...
Using light beams for communication is not a new idea, even outside of Star Trek, Star Wars, and other similar fantasy stories. Scientist and science fiction writer Arthur Clark predicted that beam communication, at that time modern satellite communication was just a dream.In 1975, the magazine published an article about laser communication or laser communication equipment. The demonstrati...
Recently, in the Future Science City of Hefei City, Anhui Province, the National Major Science and Technology Infrastructure Project and Supporting Projects of Hefei Advanced Light Source announced the start of construction, with a planned land area of approximately 656 acres. The first phase of the project is expected to be completed by September 2028.After completion, it will become an internati...