The magnetic field dependence of terahertz radiation from InAs excited by femtosecond laser pulses has been measured with the time-domain spectroscopy up to 10 T. The magnetic field dependence of n-InAs shows a radiation power minimum around 5 T whereas p-InAs does not show such a minimum. Additionally, it is found that the polarity of the amplitude of terahertz radiation is reversed at 5 T for n-InAs. This polarity reversal is attributed to a crossover of the radiation mechanism from the photo-Dember effect to magnetoplasma oscillations with increasing magnetic field.


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    Title :

    Investigation of the Mechanism of Terahertz Radiation from InAs under Magnetic Fields


    Contributors:


    Publication date :

    2006-09-01


    Size :

    1221438 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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