Lasing of Quantum-Dot Micropillar Lasers Under Elevated Temperatures

Lasing of Quantum-Dot Micropillar Lasers Under Elevated Temperatures

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 confineme...

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Veröffentlicht in:IEEE journal of selected topics in quantum electronics 2025-09, Vol.31 (5: Quantum Materials and Quantum Devices), p.1-8
Hauptverfasser: Babichev, Andrey, Makhov, Ivan, Kryzhanovskaya, Natalia, Blokhin, Alexey, Zadiranov, Yuri, Salii, Yulia, Kulagina, Marina, Bobrov, Mikhail, Vasil'ev, Alexey, Blokhin, Sergey, Maleev, Nikolay, Tchernycheva, Maria, Karachinsky, Leonid, Novikov, Innokenty, Egorov, Anton
Format: Artikel
Sprache:eng
Schlagworte:
Distributed Bragg reflectors
Etching
Fundamental vertical mode
High temperature
Laser modes
Lasers
Lasing
Microcavities
micropillar
Numerical models
Optical pumping
Personal protective equipment
Photonics
Q-factor
Quantum dots
reservoir computing
Vertical cavity surface emitting lasers
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Zusammenfassung: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.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2024.3494245