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VCSELs: going blue and green
VCSELs emitting in the near-infrared have enjoyed huge market success in consumer applications - particularly in Apple's iPhones, where they are used for facial security screening. ITRI and Ganvix are looking to extend wavelength coverage to the blue and green parts of the spectrum thanks to the properties of porous GaN, with metaverse applications in mind. Image: ITRI/Ganvix.
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