Time- and angle-resolved photoemission spectroscopy has played an important role in revealing the non-equilibrium electronic structures of solid-state materials. The implementation of high harmonic generation to obtain a higher photon energy also allows us to investigate the wide Brillouin zone on a time scale below 100 fs. In this article, we review our recent studies using high-harmonic-generation-laser-based time- and angle-resolved photoemission spectroscopy to study a variety of quantum materials. We reveal many unprecedented phenomena in each system and highlight some representative results.

中文翻译：

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量子材料的基于 HHG 激光的时间和角度分辨光电发射光谱

时间和角度分辨光电子能谱在揭示固态材料的非平衡电子结构方面发挥了重要作用。实施高次谐波以获得更高的光子能量也使我们能够在低于 100 fs 的时间尺度上研究宽布里渊区。在本文中，我们回顾了我们最近使用基于高次谐波产生激光的时间和角度分辨光电子发射光谱来研究各种量子材料的研究。我们揭示了每个系统中许多前所未有的现象，并突出了一些具有代表性的结果。