We propose to use the resonant nonlinear-wave mixing due to the second-order electron (hole) nonlinearity in the semiconductor asymmetric quantum wells under a femtosecond optical pulse excitation for the generation of the utmost short mid/far-infrared pulses with a few- or even single-cycle duration defined by the pump duration. We analyze emission of the mid/far-infrared pulses for the planar multiple quantum-well structure optically pumped at the Brewster's angle. The explicit formula for the mid/far-infrared electric field is derived, and its peak value is estimated as 1 V/m (for the Al(In)GaAs heterostructures) that is high enough for many applications, in particular, in the THz frequency range.


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    Title :

    Generation of femtosecond mid/far-infrared pulses in quantum-well heterostructures under femtosecond laser pumping


    Contributors:


    Publication date :

    2005-01-01


    Size :

    230099 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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