In this paper, we review the development and application of coherent short wavelength light sources implemented using the high harmonic generation (HHG) process. The physics underlying HHG brought quantum physics into the domain of attosecond time-scales for the first time. The observation and manipulation of electron dynamics on such short time-scales—a capability not conceived—of just a few decades ago—is becoming both more-and-more sophisticated and useful as a route to achieve exquisite control over short wavelength light. New experimental techniques are enabling HHG light sources to provide new insights into fundamental quantum interactions in materials, making it possible for the first time to capture the fastest charge, spin, photon and phonon interactions and to achieve diffraction-limited imaging at short wavelengths.

中文翻译：

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阿秒光科学及其在探测量子材料中的应用

在本文中，我们回顾了使用高谐波生成（HHG）工艺实现的相干短波长光源的开发和应用。HHG的基础物理学第一次将量子物理学带入了亚秒级的时标领域。在如此短的时间尺度上观察和操纵电子动力学（这是几十年前才想到的一种能力），它正变得越来越复杂，并且越来越有用，可以实现对短波长光的精确控制。新的实验技术使HHG光源能够提供有关材料中基本量子相互作用的新见解，从而使首次捕获最快的电荷，自旋，光子和声子相互作用并实现短波长衍射受限成像成为可能。