Light-Emitting Devices, Materials, and Applications XXVIII 2024
DOI: 10.1117/12.3001654
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Carrier dynamics of type-II InAsSb/GaAsSb W-quantum wells emitting in mid-infrared

Tristan Smolka,
Michal Rygala,
Krzysztof Ryczko
et al.

Abstract: Interband cascade lasers (ICLs) are highly efficient semiconductor lasers operating in the mid-infrared range. Their cascade structure of multiple quantum wells enables continuous operation at room temperature with low threshold current. This study explores the impact of tensile and compressive strain on W-QWs' electronic structure and carrier dynamics. Using transient absorption measurements on specific material structures, researchers investigated carrier lifetimes and fundamental transitions. Photoreflectan… Show more

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