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Recently, scientists used laser gyroscopes to measure that the change in Earth's rotational speed is less than one millionth. This technology can help scientists understand the complex flow of water and air, which can cause the smallest adjustments to the Earth's rotation.The Earth's rotation is not completely stable. Planets accelerate or slow down as they rotate, slightly shortening or prolongin...
Recently, Shao Jianda, a researcher of Shanghai Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Jin Yunxia, a researcher team, and Li Chaoyang, a researcher of Zhangjiang Laboratory, have made breakthroughs in the field of ultra wideband pulse compression gratings.The research team has successfully developed a ultra 400 nm broadband gold grating for single cycle pulse com...
At a distance of 325 meters, the human eye may only be able to distinguish between a person's head and body, making it difficult to discern any other differences. But a research team including Heriot Watt University in the UK and Massachusetts Institute of Technology in the US has developed a new type of LiDAR scanner that can perform detailed analysis of a person's face from such a distance and c...
Recently, a start-up company co founded by Nobel laureate Hideyoshi Nakamura in San Francisco plans to commercialize nuclear fusion reactors using laser technology around 2030.Hideyoshi Nakamura won the 2014 Nobel Prize in Physics for inventing blue light-emitting diodes. He founded Blue Laser Fusion in Palo Alto, California in November 2022. Partners include Hiroaki Ohta, former CEO of drone manu...
Researchers from the University of Aveiro in Portugal and the School of Engineering at Porto Institute of Technology (ISEP) in Portugal reported a study on the influence of laser beam intensity distribution on the geometric shape and process stability of lock holes under green laser radiation. The relevant paper titled "Influence of Laser Beam Intensity Distribution on Keyhole Geometry and Process...