Optically pumped stimulated emission in ZnS/ZnCdS multiple quantum-wells, MBE-grown on GaP

K. B. Ozanyan, J. E. Nicholls, L. May, J. H C Hogg, W. E. Hagston, B. Lunn, D. E. Ashenford

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Optically pumped stimulated emission is observed in a series of ZnS/Znl-xCdxS multiple quantum-well (MQW) structures, grown on GaP substrates by MBE. We report lasing from a ZnS/Zn0.97Cd0.03S MQW at wavelengths as low as 333nm, the shortest yet reported in a semiconductor heterostructure. The lasing threshold decreases for deeper wells and reaches 6.5 kW.cm-2 at 8K and 80 kW.cm-2 at 300K for the MWQs with a Cd-composition of 0.2. The results are compared to known values for similar structures grown on GaAs by MOCVD, which reveals the potential of the GaP-substrate MBE technology for the widest bandgap II-VI heterostructures incorporating ZnS-based ternary alloys. Copyright © 1996 Elsevier Science Ltd.
    Original languageEnglish
    Pages (from-to)407-411
    Number of pages4
    JournalSolid State Communications
    Volume99
    Issue number6
    DOIs
    Publication statusPublished - Aug 1996

    Keywords

    • A. Quantum wells
    • A. Semiconductors
    • B. Epitaxy
    • D. Optical properties
    • E. Luminescence

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