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RIKEN's two physicists have achieved extremely short laser pulses with a peak power of 6 terawatts (6 trillion watts) - roughly equivalent to the power generated by 6000 nuclear power plants. This achievement will contribute to the further development of attosecond lasers, for which three researchers were awarded the Nobel Prize in Physics in 2023. This study was published in the journal Nature Ph...
A powerful telescope in South Africa has detected a space laser 5 billion light-years away from Earth, known as the "megamaser". Scientists named it Nkalakatha, which means "big boss" in Zulu language.Nkalakatha is the farthest hydroxyl giant detected so far, discovered by the MeerKAT telescope on the first night of the survey, which is expected to include 3000 hours of observation. The team of sc...
On October 30th, Lumentum announced the acquisition of Hong Kong optical module manufacturer Cloud Light for $750 million (approximately RMB 5.48 billion), with the aim of expanding its influence in cloud data centers and network infrastructure.It is understood that Cloud Light is a Hong Kong company that provides various optical product solutions, mainly focusing on designing and manufacturing ad...
In the process of selecting electric vehicles, the effectiveness of the heating system is often overlooked. However, this system is crucial for providing a warm and comfortable driving environment and removing frost and fog from winter windows. More importantly, it can also improve battery efficiency, as the battery performs best within a specific temperature range.Unlike internal combustion engin...
For example, the commonly used square shell battery cells for power batteries include laser welding of cover explosion-proof valves, laser welding of pole columns, and laser welding of cover plates and shells. During the process of laser welding of aluminum alloy, it is easy to generate unqualified phenomena such as explosion points, pores, welding cracks, excessive depth and width of fusion. ...