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Wrinkled SiGe Nanofilms as a Source of Terahertz Radiation

机译:皱纹的SiGe纳米膜可作为太赫兹辐射的来源

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摘要

We demonstrate that the wrinkled SiGe/SiGe films can serve as radiation sources, which emit electromagnetic waves in a very wide range of the frequencies including the terahertz band from 0.3 to 3 THz. The emission mechanism is based on the change of acceleration of carriers, when they travel along the sinusoidal trajectory in wrinkled SiGe/SiGe films, a manner similar to synchrotron radiation with undulators, or like a free-electron laser.
机译:我们证明,起皱的SiGe / SiGe膜可以用作辐射源,它以非常宽的频率范围(包括0.3至3 THz的太赫兹频带)发射电磁波。发射机理基于载流子在起皱的SiGe / SiGe膜中沿着正弦轨迹行进时的加速度变化,其方式类似于使用波荡器的同步加速器辐射,或者类似于自由电子激光器。

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