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In an advance for frequency combs, Alireza Marandi, a professor of electrical engineering and applied physics at Caltech, and his team recently created a nanophotonic device to produce a broad range of laser light frequencies with ultrahigh efficiency on a microchip. How did they pull it off? By combining dispersion engineering—shaping the way different wavelengths

In mid 2025, Amazon crossed a milestone that would have seemed like science fiction a decade ago: One million autonomous robots are deployed across its logistics operations. It’s a staggering figure—one that illustrates how far automation has come and how quickly it’s spreading. Meanwhile, lawmakers are considering the first federal frameworks for robotics and autonomous

In this episode of Photonics Hot List: Pinhole imaging, one of the world’s oldest image-creating approaches, could someday revolutionize next-generation imaging, thanks to developments by researchers at East China Normal University. Space-based laser communications developer Cailabs is now set to expand, metasurface innovator Metalenz will soon expand its product and patent portfolio, and Lattice Materials

Frequency combs generate spectra with discreet and equally spaced lines—akin to a comb’s teeth. “In short, frequency combs can be viewed as rulers of frequency,” says Qing Hu, a professor of electrical engineering and computer science at MIT, who led the group’s work. Until now, designing frequency combs with the bandwidth required for mass-producible remote