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Terahertz radiation from a shallow incidence-angle InAs emitter in a magnetic field irradiated with femtosecond laser pulses

机译:飞秒激光脉冲在磁场中从浅入射角InAs发射器发出的太赫兹辐射

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摘要

The optimized incidence angle and magnetic field direction geometry of an InAs terahertz radiation emitter irradiated with femtosecond laser pulses in a magnetic field is reported. The optimum geometric layout is the magnetic field direction parallel to the semiconductor surface and at an incidence angle that is slightly larger than the Brewster angle. Additionally, we also observed a center frequency shift of terahertz radiation spectrum by changing the incidence angle of the excitation laser.
机译:报告了飞秒激光脉冲在磁场中辐照的InAs太赫兹辐射发射器的最佳入射角和磁场方向几何形状。最佳的几何布局是平行于半导体表面且入射角略大于布鲁斯特角的磁场方向。另外,我们还通过改变激发激光的入射角观察到了太赫兹辐射光谱的中心频率偏移。

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