Article ; Online: Two-state lasing in a quantum dot racetrack microlaser.
Optics letters
2023 Volume 48, Issue 13, Page(s) 3515–3518
Abstract: The peculiarities of two-state lasing in a racetrack microlaser with an InAs/GaAs quantum dot active region are investigated by measuring the electroluminescence spectra at various injection currents and temperatures. Unlike edge-emitting and microdisk ... ...
Abstract | The peculiarities of two-state lasing in a racetrack microlaser with an InAs/GaAs quantum dot active region are investigated by measuring the electroluminescence spectra at various injection currents and temperatures. Unlike edge-emitting and microdisk lasers, where two-state lasing involves the ground and first excited-state optical transitions of quantum dots, in racetrack microlasers, we observe lasing through the ground and second excited states. As a result, the spectral separation between lasing bands is doubled to more than 150 nm. A temperature dependence of threshold currents for lasing via ground and second excited states of quantum dots was also obtained. |
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MeSH term(s) | Quantum Dots ; Temperature |
Language | English |
Publishing date | 2023-06-30 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 1539-4794 |
ISSN (online) | 1539-4794 |
DOI | 10.1364/OL.494380 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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