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The new device is a frequency comb - a special type of laser that can generate multiple wavelengths of light, each with a fixed frequency interval. On the spectrogram, it looks a bit like the teeth of a comb. In approximately a quarter century since their first development, these "cursor rulers" have completely transformed various high-precision measurements from timing to molecular detection. In ...
Recently, the research team of the High Power Laser Physics Joint Laboratory of the Chinese Academy of Sciences Shanghai Institute of Optics and Fine Mechanics identified and analyzed the abnormal near-field output of the SG - Ⅱ upgrade device by using the spatial domain computing method and the deep learning model with attention mechanism in response to the requirements of real-time and effective...
SpaceX President Gwynne Shotwell stated at a meeting on Tuesday that the company has started selling satellite lasers for fast space communication to other satellite companies.SpaceX's thousands of Starlink satellites in low Earth orbit use inter satellite laser links to transmit data to each other in space at the speed of light, so that the network can provide more extensive Internet coverage wo...
Lithography is one of the core processes in semiconductor manufacturing, and extreme ultraviolet lithography technology, as a new generation lithography technology, is also in a rapid development stage. The basic principle is to use photoresist (also known as photoresist) to form corrosion resistance due to photochemical reactions after being photosensitive, and to engrave the patterns on the mask...
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...