We have studied the hot electron and phonon transport in resonant-phonon-assisted terahertz (THz) quantum-cascade lasers (QCLs) by using the semiclassical Monte Carlo method. The hot phonon effect is included in the Monte Carlo simulation by introducing a time constant accounting for the decay of polar optical phonons into other phonon modes. It is found that nonequilibrium polar optical phonons may modify the electron-phonon interaction, affect the electron distribution in different subbands, and consequently change the device current.


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    Title :

    Hot phonon effect in resonant-phonon-assisted terahertz quantum-cascade lasers


    Contributors:
    Lu, J. T. (author) / Cao, J. C. (author)


    Publication date :

    2006-09-01


    Size :

    1136651 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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