Title Comprehensive investigation of emission homogeneity of InGaAs multiple quantum wells using spatially resolved spectroscopy
Authors Zelioli, Andrea ; Špokas, Aivaras ; Čechavičius, Bronislovas ; Talaikis, Martynas ; Stanionytė, Sandra ; Bukauskas, Virginijus ; Vaitkevičius, Augustas ; Čerškus, Aurimas ; Wojnar, Piotr ; Deibuk, Vitaly ; Dudutienė, Evelina ; Butkutė, Renata
DOI 10.1038/s41598-025-17326-1
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Is Part of Scientific reports.. Springer science and business media LLC. 2025, vol. 15, is. 1, art. no. 32885, p. 1-9.. eISSN 2045-2322
Keywords [eng] PL ; MQW ; InGaAs ; VECSEL
Abstract [eng] In this study the emission homogeneity of InGaAs multiple quantum wells (MQW) was investigated. Two sets of samples grown by molecular beam epitaxy, with varying In content and QW thickness as well as barrier thickness, were mapped using room temperature photoluminescence and micro-photoluminescence. The result showed that increasing In content leads to a higher stress accumulation which can lead to the formation of a denser net of lattice mismatch dislocations in the QW layer. Samples with optimized barrier design exhibit uniform emission intensity.
Published Springer science and business media LLC
Type Journal article
Language English
Publication date 2025
CC license CC license description