Non-equilibrium phase control of molecular conductors by intense terahertz pulse excitation

我们进行了太赫兹(THz)泵浦实验，以研究有机材料中的非平衡载流子动力学。我们实现了产生峰值电场为0的太赫兹脉冲。7 mV/cm，在室温下观察到了THz电场在取向半导体单壁碳纳米管中产生的一维激子。通过太赫兹泵浦和太赫兹探测实验研究了θ-(BEDT-TTf)2CsZn(SCN)4电荷有序相的非平衡动力学，并通过太赫兹脉冲激发观察了其在太赫兹谱区的透过率变化。最后，我们提出并发展了一种快速、准确地确定THz脉冲极化方向的方法，为进一步研究有机材料中的电子自旋动力学奠定了基础。

We performed terahertz(THz) pump experiments to investigate non-equilibrium carrier dynamics in organic materials. We achieved to generate an intense THz pulse with the peak electric-field of 0. 7 MV/cm, and THz electric-field-induced one-dimensional excitons generation in aligned semiconducting single-walled carbon nanotubes was observed at room temperature. The non-equilibrium dynamics of the charge-ordered phase ofθ-(BEDT-TTF)_2CsZn(SCN)_4 was investigated by the THz-pump and THz-probe experiments, and the transmission change in the THz spectral region was observed by performing the THz pulse excitation. Finally, we proposed and developed a method to quickly and precisely determine the polarization direction of THz pulses for investigating an electron spin dynamics in organic materials for future studies.