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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    Titel :

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


    Beteiligte:
    Sumikura, Hisashi (Autor:in) / Enatsu, Tokujiro (Autor:in) / Kiyoi, Akira (Autor:in) / Nagashima, Takeshi (Autor:in) / Tani, Masahiko (Autor:in) / Hangyo, Masanori (Autor:in)


    Erscheinungsdatum :

    01.09.2006


    Format / Umfang :

    1221438 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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