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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 ...
Recently, a team led by researcher Zhaoyang Wei of the Precision Optics Manufacturing and Testing Center of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, has realized the manufacture of fused quartz components with high resistance to UV laser damage based on the defect characterization and removal process of CO2 laser. The research is published in Light: Advance...
Recently, nLIGHT, a manufacturer of high-power semiconductors and fiber lasers, announced its financial performance for the fourth quarter and full year of 2024.financial summaryTotal revenue: 198.5 million US dollars, a decrease from 209.9 million US dollars in 2023, due to a decline in sales in the laser product department.Operating loss: A loss of $65.6 million, compared to a loss of $46.8 mill...
High brightness semiconductor lasers have extremely important applications in fields such as laser radar. Traditional semiconductor lasers face challenges such as large vertical divergence angle, elliptical beam output, multiple lateral modes, and poor beam quality, which limit the direct application of high brightness semiconductor lasers.In response to this challenge, the team from the Bimberg S...
At last month’s LASER World of Photonics exhibition in Munich, Germany, industrial solutions and laser giant Trumpf presented a new materials processing laser system solution specified to improve welding processes.The system combines several sensors that monitor all process steps during laser welding. An integrated AI quality control system checks the weld seams, for example, and OCT (optical cohe...