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GaInAsP photonic crystal point-shift nanolasers operate at room temperature under pulsed and continuous-wave condition by photopumping with an effective threshold of ∼1 μW, a single-mode peak of over 40 dB, and a small modal volume of ∼0.2 times the cubic wavelength. We report the details of its design, fabrication process, measurement method, and lasing characteristics. In particular, we reveal that...
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