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Low-Threshold Lasing in Strained Germanium under Optical Pumping

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We report the first experimental observation of low-threshold lasing in strained germanium nanowires. The lasing threshold is ~3.0 kW cm-2 which is more than one order of magnitude lower than the state-of-the-art germanium-tin Fabry-Perot laser.

© 2018 The Author(s)

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