论文标题
各向异性电子压力引起的金属内部的磁场
Magnetic field inside the metal induced by anisotropic electronic pressure
论文作者
论文摘要
从理论上讲，我们表明激光辐照金属内电子分布函数的各向异性导致在各向同性化的时间尺度上形成边缘电流。当皮肤层中的电子压力是各向异性时，压力梯度似乎是有效产生低频磁场的非电位力。在使用飞秒激光泵送产生的内部磁场的典型实验中，在非损害相互作用方向上，内部磁场可以丰富幅度至〜1 tesla。我们证明该磁场位于金属内，而仅作为亚terahertz信号将其能量的一个小部分辐射到自由空间中。
We show theoretically that anisotropy of electronic distribution function inside the laser-irradiated metal leads to the formation of edge currents at the timescale of distribution isotropization. When the electronic pressure in the skin-layer is anisotropic, pressure gradient appears to be non-potential force effectively producing low-frequency magnetic field. In typical experiments with femtosecond laser pumping generated internal magnetic field can rich magnitude up to ~1 Tesla in non-damaging interaction regime. We demonstrate that this field is localized inside the metal, while just a minor part of its energy can be radiated into free space as a sub-terahertz signal.
