论文标题
Terahertz高谐波一代的椭圆度控制
Ellipticity control of terahertz high-harmonic generation in a Dirac semimetal
论文作者
论文摘要
We report on terahertz high-harmonic generation in a Dirac semimetal as a function of the driving-pulse ellipticity and on a theoretical study of the field-driven intraband kinetics of massless Dirac fermions.Very efficient control of third-harmonic yield and polarization state is achieved in electron-doped Cd$_3$As$_2$ thin films at room temperature.观察到的可调节性被理解为由Terahertz-Field驱动的Dirac Fermions驱动的内部动力学产生的。我们的研究为利用Dirac物质的非线性光学特性用于信号处理和光学通信的应用铺平了道路。
We report on terahertz high-harmonic generation in a Dirac semimetal as a function of the driving-pulse ellipticity and on a theoretical study of the field-driven intraband kinetics of massless Dirac fermions.Very efficient control of third-harmonic yield and polarization state is achieved in electron-doped Cd$_3$As$_2$ thin films at room temperature. The observed tunability is understood as resulting from terahertz-field driven intraband kinetics of the Dirac fermions. Our study paves the way for exploiting nonlinear optical properties of Dirac matter for applications in signal processing and optical communications.
