跨入X射线波段:超快和非线性光谱学的研究进展  

Advances in extending ultrafast and nonlinear spectroscopy to X-ray wavelengths

作　　者：刘伟民 李润泽 彭鹏 戴晟 李祯辉 王涵 John Andrew McGuire LIU Weimin;LI Runze;PENG Peng;DAI Sheng;LI Zhenhui;WANG Han;John Andrew McGuire(School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China;Center for Transformative Science,ShanghaiTech University,Shanghai 201210,China)

机构地区：[1]上海科技大学物质科学与技术学院,上海201210 [2]上海科技大学大科学中心,上海201210

出　　处：《自然杂志》2024年第3期173-184,共12页Chinese Journal of Nature

摘　　要：超快非线性光谱技术(远红外至近紫外波段)是探测物质动力学过程及对称性的有效手段。近年来X射线自由电子激光技术的发展使超快光谱学测量拓展至X射线波段成为可能。文章对相关的研究进展进行了评述,并着重强调X射线波段的超快非线性光谱技术对于加深人们对物理和化学现象以及材料性质等的理解具有重要意义。Nonlinear and ultrafast optical(far infrared to near ultraviolet)spectroscopic techniques are versatile tools for probing material dynamics and symmetries.Recent advances in the design of X-ray free electron lasers now allow for the extension of ultrafast spectroscopy to the X-ray region.We discuss the examples of such extensions highlighting the unique contributions that implementation of ultrafast and nonlinear spectroscopy in the X-ray region can make to deepen our understandings of chemical and physical phenomena and material properties.

关 键 词：阿秒 飞秒受激拉曼光谱 相位匹配 二次谐波产生 X射线自由电子激光 

分 类 号：O433[机械工程—光学工程] TN24[理学—光学]