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Electrical domains and sub-millimeter signal generation in AlGaN/GaN superlattices

机译:AlGaN / GaN Supertrices中的电域和亚毫米信号产生

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The paper discusses the feasibility of a terahertz-signal source made of AlGaN/GaN superlattice. Negative differential conductivity, electrical domain formation, current oscillations, and power efficiency of a perspective source are described. We relate the superlattice geometry and conduction band profile, distorted by polarization fields, to the oscillation frequency and power efficiency of the device. We also determine the optimal Al content, superlattice period, and the parameters of external circuit that favor sub-millimeter wave generation.
机译:本文讨论了由AlGaN / GaN超晶格制成的太赫兹信号源的可行性。描述了透视源的负差导电性,电域形成,电流振荡和功率效率。我们将超晶格几何和传导频段曲线(通过偏振磁场扭曲)涉及偏振场,振荡频率和设备的功率效率。我们还确定最佳的Al含量,超晶格周期和有利于亚毫米波产生的外部电路参数。

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