Yan Liu, Fu-Ming Guo, Yu-Jun Yang. Subatomic scale study of atom-generated higher-order harmonic [J]. Acta Physica Sinica, 2019, 68(17): 173202-1
- Acta Physica Sinica
- Vol. 68, Issue 17, 173202-1 (2019)
Fig. 1. (a) High-order harmonic emission of atoms irradiated by laser pulses; (b) harmonic spectra calculated from
; (c) harmonic spectra calculated from
; (d) the comparison of three harmonic spectra.
(a) 激光脉冲辐照下原子的高次谐波发射; (b)
计算得到的谐波谱; (c)
计算得到的谐波谱; (d) 三个谐波谱的对比
Fig. 2. Spatial distribution in HHG spectra as a function of the electronic coordinate calculated from
.
利用
计算的高次谐波发射谱随着x 的改变
Fig. 3. Spatial distribution of the phase of harmonic emission calculated from
.
利用
计算的高次谐波发射相位随x 的改变
Fig. 4. Time evolution of the dipole moment at x = –2 a.u. (black solid curve) and x = 2 a.u. (red dotted curve) : (a) The eleven-order harmonic; (b) the twelve-order harmonic.
11次谐波(a)和12次谐波(b)分别在空间x = –2 a.u.和 x = 2 a.u.位置的偶极矩随着时间的改变
Fig. 5. The harmonic emission of atoms is produced by the process of harmonic emission in different space regions.不同空间区域发射谐波的相关过程产生了原子的谐波发射
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