Quantum cascade lasers in GaAs/AlGaAs heterostructures are operated in the THz range, with peak powers of several mWs and thresholds of few hundred A/cm/sup 2/ up to 60 K. Single-mode and continuous-wave emission are also achieved at 4.4 THz.


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    Title :

    Terahertz heterostructure lasers


    Contributors:
    Tredicucci, A. (author) / Kohler, R. (author) / Beltram, F. (author) / Beere, H.E. (author) / Linfield, E.H. (author) / Davies, A.G. (author) / Ritchie, D.A. (author) / Iotti, R.C. (author) / Rossi, F. (author)


    Publication date :

    2002-01-01


    Size :

    167389 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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