During femtosecond laser fabrication, photons are mainly absorbed by electrons, and the subsequent energy transfer from electrons to ions is of picosecond order. Hence, lattice motion is negligible ...
Order doesn’t always form perfectly—and those imperfections can be surprisingly powerful. In materials like liquid crystals, ...
Earth's ozone layer, an early symbol of global environmental degradation, is improving and on track to recover by the middle of the 21st century. Over the past 30 years, humans have successfully ...
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