A micrometre-sized laser has been demonstrated in silicon, the most ubiquitous material of the electronics industry. The device operates at microwatt power levels and could open routes to compact photonic integrated circuits. See Letter p.470
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References
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Baets, R. An ultra-small silicon laser. Nature 498, 447–448 (2013). https://doi.org/10.1038/498447a
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DOI: https://doi.org/10.1038/498447a
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