Abstract
In article number 2006819, Chien-Chih Lai and co-workers report the first demonstration of a diode-pumped ultralow-threshold continuous-wave room-temperature perovskite laser, by coating MAPbI3 nanocrystallites onto a high-quality yttrium aluminum garnet (YAG) crystal fiber. The atomically smooth crystal fiber not only serves as a perfect microcavity for ultralow-loss optical resonance but also facilitates heat dissipation toward robust laser devices, outperforming previously reported structures. This readies the ground for electrically driven lasers for all-optical photonic integration.
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