| Hydrodynamic simulation of chaotic dynamics in InGaAs oscillator in terahertz region |
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| 作者姓名： | 冯伟 |
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| 作者单位： | Department of Physics |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant No.11604126);China Scholarship Council(Grant No.201808695016)。 |
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| 摘 要： | Hydrodynamic calculations of the chaotic behaviors in n^+nn^+In0.53Ga0.47As devices biased in terahertz(THz)electric field have been carried out.Their different transport characteristics have been carefully investigated by tuning the n-region parameters and the applied ac radiation.The oscillatory mode is found to transit between synchronization and chaos,as verified by the first return map.The transitions result from the mixture of the dc induced oscillation and the one driven by the ac radiation.Our findings will give further and thorough understanding of electron transport in In0.53Ga0.47As terahertz oscillator,which is a promising solid-state THz source.
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| 关 键 词： | TERAHERTZ CHAOTIC current OSCILLATION |
Hydrodynamic simulation of chaotic dynamics in InGaAs oscillator in terahertz region |
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| Wei Feng.Hydrodynamic simulation of chaotic dynamics in InGaAs oscillator in terahertz region[J].Chinese Physics B,2020(4):94-97. |
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| Authors: | Wei Feng |
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| Affiliation: | (Department of Physics,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | Hydrodynamic calculations of the chaotic behaviors in n~+nn~+ In_(0.53)Ga_(0.47)As devices biased in terahertz (THz) electric field have been carried out. Their different transport characteristics have been carefully investigated by tuning the n-region parameters and the applied ac radiation. The oscillatory mode is found to transit between synchronization and chaos, as verified by the first return map. The transitions result from the mixture of the dc induced oscillation and the one driven by the ac radiation. Our findings will give further and thorough understanding of electron transport in In_(0.53)Ga_(0.47)As terahertz oscillator, which is a promising solid-state THz source. |
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