Lasing of Quantum-Dot Micropillar Lasers Under Elevated Temperatures

作者：A. V. Babichev, Ivan Makhov, N. V. Kryzhanovskaya, A. A. Blokhin, Yuriy Zadiranov, Yulia Salii, M. M. Kulagina, M. A. Bobrov, А. П. Васильев, S. A. Blokhin, N. A. Maleev, Maria Tchernycheva, L. Ya. Karachinsky, I. I. Novikov, A. Yu. Egorov · 发表于：IEEE Journal of Selected Topics in Quantum Electronics · 年份：2024 · DOI：10.1109/jstqe.2024.3494245 · 被引用次数：6 · 研究领域：Semiconductor Lasers and Optical Devices、Photonic and Optical Devices、Photonic Crystals and Applications

A comprehensive numerical modelling of microcavity parameters for micropillar lasers with optical pumping was presented. The structure with a hybrid dielectric-semiconductor top mirror has a significantly higher calculated quality-factor (∼65000 for 5 μm pillar) due to better vertical mode confinement. The minimum laser threshold (∼370 μW for 5 μm pillar) coincided with a temperature of 130 K, which is close to zero gain to cavity detuning. Lasing up to 220 K was demonstrated with a laser threshold of about 2.2 mW.