We report terahertz (THz) wave generation based on mixing of two radially polarized hollow Gaussian laser beams in periodic density plasma. We incorporate the effect of plasma electron temperature on THz intensity and efficiency. Our investigations reveal that emitted THz is radially polarized. Brightness and efficiency of THz significantly increase with plasma electron temperature. Our scheme predicts upto 2.4-fold enhancement in THz conversion efficiency with increase in plasma electron temperature from 0–10 KeV. We observe that effect of plasma electron temperature is more prominent when difference of laser frequency matches with plasma frequency i.e. ##IMG## [http://ej.iop.org/images/1402-4896/95/11/115007/psabbe51ieqn1.gif] {${\omega }_{1}-\,{\omega }_{2}\approx {\omega }_{p}.$} The profile of THz depends on the laser parameters and it is independent of plasma electron temperature. A high THz field (∼10 MV cm −1 ) and high conversion efficienc...

中文翻译：

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电子温度对非均质等离子体中激光打浆产生的太赫兹强度和效率的影响研究

我们报告基于在周期密度等离子体中两个径向极化的空心高斯激光束的混合产生太赫兹（THz）波。我们纳入了等离子体电子温度对太赫兹强度和效率的影响。我们的研究表明，发射的THz是径向极化的。太赫兹的亮度和效率随着等离子体电子温度的升高而显着提高。我们的方案预测，随着等离子体电子温度从0–10 KeV升高，THz转换效率最高可提高2.4倍。我们观察到，当激光频率的差异与等离子频率相匹配时，即## IMG ## [http://ej.iop.org/images/1402-4896/95/11/115007/psabbe51ieqn1 .gif] {$ {\ omega} _ {1}-\，{\ omega} _ {2} \约{\ omega} _ {p} $} THz的轮廓取决于激光参数，并且与等离子体电子温度无关。高太赫兹场（〜10 MV cm -1）和高转换效率...