Terahertz radiation of jerk photocurrent

Article

关键词: CURRENTS;    SHIFT;   

DOI  :  10.1103/PhysRevB.102.195410

来源: SCIE

【 摘 要 】

We compute the jerk current tensor of GaAs, Si, and ferroelectric single-layer GeS, GeSe, SnS, and SnSe. We find peak values of the order of 10(14) mA/V-3 s(2) in GaAs and Si within the visible energy spectrum and an order of magnitude larger in single-layer GeS, GeSe, SnSe, and SnS. We show that the detailed knowledge of this tensor and its large value in single-layer GeS, GeSe, SnSe, and SnS make it possible to predict the magnitude and angle of rotation of polarization of intense terahertz pulses generated in photoconductive switches and point to alternative functionalities of these devices.

【 授权许可】

Free