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Two dimensional transition metal chalcogenides have multi valley structures in their energy bands, giving them electron valley degrees of freedom, making them an ideal platform for studying multi body interactions. As the main mechanism of valley depolarization, the valley scattering process of free electrons or bound excitons is crucial for exploring excited state electron phonon interactions and...
High-tech and industrial laser company Trumpf has reported rather negative preliminary trading figures for the fiscal year (FY) 2024-2025, with CEO Nicola Leibinger-Kammüller stating that “the lowest point has been reached.”The Ditzingen, Germany-based company stated that it had ended the latest fiscal year “as expected – with a decline in sales and order intake.” According to preliminary calcul...
According to a report in Nature on June 26th, a team from Stanford University in the United States has developed a titanium sapphire laser on a chip. Whether in terms of scale efficiency or cost, this achievement is a huge progress. Image source: Nature websiteTitanium sapphire lasers are indispensable in many fields such as cutting-edge quantum optics, spectroscopy, and neuroscience, but they ...
Researchers from Ming Hsieh's Department of Electrical and Computer Engineering at the University of Southern California have designed the first optical device that follows the emerging optical thermodynamic framework.The work, reported in Nature Photonics, introduces a new way of routing light in nonlinear systems—meaning systems that do not require switches, external control, or digital addressi...
As a breakthrough leap in scientific exploration, the new generation of powerful X-ray lasers is now targeting the fastest and most basic processes in nature. Their mission: to uncover the complex atomic arrangement that drives these phenomena, providing unprecedented insights into chemical reactions, electronic behavior in materials, and the mysteries of the natural world.Unlocking the precise me...