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arXiv 1902.06397physics.optics
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固体中高次谐波产生的取向相关跃迁规则

Orientation-dependent transition rule in high-order harmonic generation from solids

Tao-Yuan Du, Si-Jing Ding

摘要:

研究了线偏振激光场驱动固体产生高次谐波过程中跃迁规则的作用。取向依赖的过渡偶极子可以调节多平台结构的出现。在多平台区,不同于以往报道的分步激发机制,我们发现发射时间和取向依赖的产额分别呈现同步和更多的ne模式。取向依赖的产额及其ne模式可以归因于跃迁定则和量子路径干涉的共同贡献。因此,为了更好地理解的建设性和破坏性的模式,在取向相关的产量,我们提出了一个方案的周期间干涉,它可以进一步被用作一种工具来成像的固体结构,并提供了一个途径,以优化固体中的电子动力学的生产阿秒脉冲在一个紧凑的设置。

英文摘要:

We study the role of transition rule in high-order harmonic generation from solids driven by linearly polarized laser elds. The orientation-dependent transition dipoles can regulate the emergence of the multi-plateau structure. In the multi-plateau zone, however, di erent from the mechanisms of step-by-step excitation reported previously, we nd that the emission time and orientationdependent yields exhibit synchronization and more ne patterns, respectively. And the orientationdependent yields and its ne patterns can be attributed to the collective contribution of the transition rule and quantum-path interference. Therefore, to better understand the constructive and destructive patterns in the orientation-dependent yields, we propose a scheme of intercycle interference, which can further be utilized as a tool to image the structure of the solids and provide an avenue to optimize the electron dynamics in solids for the production of attosecond pulses in a compact setup.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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