一维μ介子模型原子的超强场高次谐波发射

The high-order harmonic generation of a one-dimensional muonic model atom in strong laser fields

本文提出了一个一维μ介子原子模型,用数值积分方法求解了在超强激光场作用下该模型原子的含时Schr dinger方程,得到了它的高次谐波发射谱。该谱表明,借助于这一奇异原子模型,可将相干辐射由XUV波段推向γ射线波段。针对这个体系的高次谐波发射效率低的缺点,引入双色场后使发射效率提高了两个数量级。

In this paper we propose a one-dimensional muonic atom model, on which the time-dependent Schrdinger equation is numerically solved by Crank-Nicholson method. The high-order harmonic generation (HHG) spectrum is obtained for this exotic atomic system. The spectrum shows that the coherent radiations in γ-ray frequency zone can be produced by using this system. Furthermore, the introduction of two-color fields makes the HHG emission efficiency rise two orders of magnitude in the whole spectrum.