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High-frequency modulation of current in tunnel-coupled quantum wells by transverse radiation in the terahertz range

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Abstract

The modulation of a longitudinal current in double quantum wells by a transverse voltage in the terahertz frequency range is calculated. A quantum kinetic equation which allows for the contributions of a pair of asymmetric tunnel-coupled levels to the resonant response is solved (the difference in effective mass or the asymmetric scattering in the left-and right-hand quantum wells is also taken into account). These structural features lead to conversion of the modulating voltage into a high-frequency longitudinal current. The calculated longitudinal-transverse nonlinear susceptibility determines the conditions needed for creating an efficient field-effect transistor circuit that would use pumping in the terahertz range instead of a transverse control voltage.

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Authors and Affiliations

  1. Institute of Semiconductor Physics, Ukrainian National Academy of Sciences, 252650, Kiev, Ukraine

    F. T. Vas’ko

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  1. F. T. Vas’ko
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Zh. Éksp. Teor. Fiz. 114, 322–332 (July 1998)

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Vas’ko, F.T. High-frequency modulation of current in tunnel-coupled quantum wells by transverse radiation in the terahertz range. J. Exp. Theor. Phys. 87, 179–185 (1998). https://doi.org/10.1134/1.558639

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  • DOI: https://doi.org/10.1134/1.558639

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