论文信息 - Lasing with low threshold current and high output power from columnar-shaped InAs/GaAs quantum dots

Lasing with low threshold current and high output power from columnar-shaped InAs/GaAs quantum dots

Lasers with a new type of quantum dot achieve low threshold current and high output power. By supplying a small amount of InAs and GaAs alternately on GaAs substrates, dots with high uniformity and high emission efficiency were self-assembled. The lasers exhibited a threshold current of 5.4 mA, a current density of 160 A/cm/sup 2/, and an output power of 110 mW at room temperature.

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