Summary form only given. Shape deformation of a whispering gallery mode (WGM) microdisk laser was recently proposed and demonstrated to achieve high-power directional emission. Here, we demonstrate the first optically pumped, near-UV microdisk gallium nitride (GaN) laser. By using judicious pumping geometry, the lasing threshold was reduced to 60 kW/cm/sup 2/, which is an order of magnitude lower than previously reported for a conventional Fabry-Perot cavity structure. The pumping configuration is as important as the cavity structure in the design of low threshold lasers.


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    Titel :

    GaN near-UV microdisk lasers: efficient pumping configuration and low lasing threshold


    Beteiligte:
    Rex, N.B. (Autor:in) / Chang, R.K. (Autor:in) / Gabel Chong, (Autor:in) / Guido, L.J. (Autor:in)


    Erscheinungsdatum :

    1999-01-01


    Format / Umfang :

    267897 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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