Gain coefficient involving excitonic transitions is calculated for unstrained as well as strained ZnCdSe/ZnMgSSe multiple quantum well (MQW) lasers as a function of operating wavelength and current density. This paper models the behavior of radiative recombination involving excitons as well as free carriers in strained layer blue-green quantum well lasers, and predicts for the first time a low threshold operation in tensile strained active layers. For example, the tensile strained Zn/sub .8/Cd/sub .2/Se-ZnMgSSe quantum well lasers are shown to operate at threshold current density as low as 180 A/cm/sup 2/, which is about the half of the compressive strain case.


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    Titel :

    Prediction of lower current threshold in tensile strained ZnCdSe/ZnMgSSe multiple quantum well blue-green lasers


    Beteiligte:
    Huang, W. (Autor:in) / Jain, F.C. (Autor:in)

    Erschienen in:

    Proceedings of LEOS'94 ; 1 ; 341-342 vol.1


    Erscheinungsdatum :

    01.01.1994


    Format / Umfang :

    122390 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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