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On July 24, Lumibird, a well-known French optoelectronics company, released its latest semi-annual report. In the first half of the year, Lumibird's revenues were 97.2 million euros, up 16 percent from the same period last year. Of this, the Optoelectronics division contributed 45.9 million euros and the remaining 51.3 million euros came from its medical division. In the second quarter (Q2) ended ...
Theoretical physicist Farok Miwivar studied the interaction between two sets of luminescent atoms in a quantum cavity - a quantum cavity is an optical device composed of two excellent small mirrors that can capture light in a small area for a long time.This model and its predictions can be used for the next generation of superradiance lasers. They can be used and observed in cutting-edge cavity/wa...
Recently, TechStar Acquisition Corporation (07855. HK), a special purpose acquisition company, announced that Seyond, the successor company of the special purpose acquisition transaction, has submitted a new listing application. Seyond plans to land on the Hong Kong Stock Exchange under the De SPAC model. This means that Seyond is only one step away from going public through a backdoor listing. If...
Superlenses are nano artificial structures that can manipulate light, providing a technique that can significantly reduce the size and thickness of traditional optical components. This technology is particularly effective in the near infrared region, and has great prospects in various applications, such as LiDAR, which is called "the eye of autonomous vehicle", mini UAV and blood vessel detector.D...
IntroductionThe small hole mode swing laser welding has gained increasing recognition due to its ability to bridge gaps, refine microstructures, and enhance the mechanical properties of welds. However, the effects of amplitude, frequency, welding speed, laser beam power, and beam radius on heat flux distribution, melting mode, and three-dimensional temperature field have not been well understood. ...