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The time/frequency unit is the most accurate among the seven basic units, so many measurement studies that pursue ultra-high accuracy and sensitivity will be transformed into frequency measurements to achieve higher measurement accuracy and sensitivity. For example, by measuring the relative changes in the ratio of different atomic transition frequencies, ultralight dark matter can be detected or ...
Canadian researchers have developed a new 3D printing method called Blur Tomography, which can quickly produce micro lenses with commercial grade optical quality. The new method can make designing and manufacturing various optical devices easier and faster.Daniel Webber from the National Research Council of Canada stated, "We have intentionally added optical blurring to the beams used in this 3D p...
When it comes to additive manufacturing, some people may not have heard of it, but when it comes to its other name: 3D printing, no one is unaware.In fact, the name 'additive manufacturing' better illustrates the essence of this processing method. From ancient times to the present, humans have put in great effort to achieve the goal of processing 'raw materials into the shapes we need'. From the S...
Researchers from Tsinghua University have summarized the research on ultrafast laser micro nano manufacturing technology, including material processing, surface/interface control, and device manufacturing. The relevant review titled "A Review of Ultrafast Laser Micro/Nano Fabric: Material Processing, Surface/Interface Control, and Device Fabric" was published in Nano Research.Ultra fast laser proc...
Recently, the Jiang Haihe Research Group of the Health Institute of the Chinese Academy of Sciences Hefei Institute of Materia Medica made important progress in the research of the high-energy pulsed laser transmission system in the mid infrared band, and designed a 78 μ The 6-hole microstructure anti resonant hollow core fiber (AR-HCF) with a larger core diameter achieved efficient transmissio...