New Scientist: The elusive goal of integrating lasers and electronics has come a big step closer with the first growth of nanoscale lasers directly on silicon. Silicon itself is a poor laser material. The tiny lasers are made instead from indium-gallium-arsenide, which is usually hard to grow directly on silicon. In a paper published in Nature Photonics, Connie Chang-Hasnain of the University of California, Berkeley, and her colleagues describe a novel growth scheme that overcomes the integration roadblock.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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