Step-scan time-domain terahertz magneto-spectroscopy.
Step-scan time-domain terahertz magneto-spectroscopy.
复制标题
步进扫描时域太赫兹磁谱。
DOI：
10.1364/oe.20.005993
复制
发表时间：
2012
期刊：
影响因子：
3.8
通讯作者：
Jean Leotin
中科院分区：
文献类型：
--
作者：
D. Molter;G. Torosyan;G. Ballon;L. Drigo;R. Beigang;Jean Leotin
提出了一种新的磁光太赫兹时域光谱方法。在这项工作中使用的设置结合了一个桌面脉冲磁铁和一个标准的太赫兹时域光谱系统。该方法是基于重复操作的脉冲磁铁和步进增量的时域光谱系统的延迟时间。通过绘制线偏振THz脉冲通过Ge样品的空穴气和GaAs、InSb和InAs样品的电子气的磁透射谱来证明该方法。回旋共振谱显示的频率范围从200 GHz到2 THz和磁场高达6 T。GaAs光谱进行了更详细的分析，使用模拟的基础上德鲁德模型。
We present a novel approach for terahertz time-domain spectroscopy of magneto-optic phenomena. The setup used in this work combines a tabletop pulsed magnet and a standard terahertz time-domain spectroscopy system. The approach is based on repetitive operation of the pulsed magnet and step-wise increment of the delay time of the time-domain spectroscopy system. The method is demonstrated by plotting the magneto-transmission spectra of linearly polarized THz pulses through the hole gas of a Ge sample and the electron gas of GaAs, InSb and InAs samples. Cyclotron resonance spectra are displayed in the frequency range from 200 GHz to 2 THz and for a magnetic field up to 6 T. The GaAs spectra are analyzed in more detail using simulations based on the Drude model.