阿秒脉冲测量原理和技术研究进展  

Principle and technology of attosecond pulse characterization

作　　者：赵昆 高亦谈 朱孝先 许思源 江昱佼 李远锋 王佶 朱江峰 张大成 陈云琳 魏志义[1,2,3] Kun Zhao;Yitan Gao;Xiaoxian Zhu;Siyuan Xu;Yujiao Jiang;Yuanfeng Li;Ji Wang;Jiangfeng Zhu;Dacheng Zhang;Yunlin Chen;Zhiyi Wei(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;Songshan Lake Material Laboratory,Dongguan 523808,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China;Institute of Applied Micro-Nano Materials,School of Science,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]中国科学院物理研究所,北京凝聚态物理国家研究中心,北京100190 [2]松山湖材料实验室,东莞523808 [3]中国科学院大学,北京100049 [4]西安电子科技大学物理与光电工程学院,西安710071 [5]北京交通大学理学院微纳材料及应用研究所,北京100044

出　　处：《科学通报》2021年第8期835-846,共12页Chinese Science Bulletin

基　　金：国家重点研发计划(2017YFB0405202,2018YFB1107200);国家自然科学基金(61690221,91850209,11774277);中国科学院仪器研制项目(YZ201658)和中国科学院前沿科学重点研究计划(QYZDJ-SSW-JSC006)资助。

摘　　要：阿秒脉冲由于极短的脉冲宽度和超高的时间分辨能力,在物理学、化学、生物学和医学等领域有着潜在应用.自诞生之日起,阿秒脉冲的时域极限不断突破,使得阿秒脉冲的测量成为一大研究热点.本文主要分为两个部分,第一部分回顾了阿秒脉冲与气体介质作用的脉冲测量技术的发展过程,简述了几种测量阿秒脉冲时域信息的实验原理、实验方案设计以及实验结果.第二部分介绍了从阿秒条纹相机中提取阿秒脉冲时域信息的理论反演算法,包括算法的原理和结构,并从计算时间和计算结果精度上对算法进行了比较.文章最后总结了阿秒脉冲测量技术在实验和理论上的困难与挑战,并展望了未来阿秒脉冲测量的发展方向.Attosecond pulses have potential applications in the fields of physics, chemistry, biology, and medicine owing to the extremely high time resolution brought by their extremely short pulse widths. The generation and measurement technology of attosecond pulses provides a powerful means for the study of electron dynamical process in atoms. Since the date of its birth, the time width of an attosecond pulse has become shorter and shorter, making its measurement a challenging task.Although attosecond pulses are more and more widely used in the study of ultrafast dynamics and more interest is attracted into the field of attosecond science, it is undeniable that there are still difficulties and challenges for the measurement of attosecond pulses. This review is divided into two parts. The first part presents the development of technics for characterizing attosecond pulses, and briefly describes several experimental principles, setups and results for acquiring time-domain information of attosecond pulses, including RABITT(reconstruction of attosecond beating by interference of two-photon transitions) and laser-assisted lateral X-ray photoionization for measuring attosecond pulse train, attosecond streak camera for measuring single attosecond pulses, TIPTOE(tunneling ionization with a perturbation for the timedomain observation of an electric field) for measuring time-domain information of periodic pulses, as well as theoretical proposals such as attosecond cross correlation, asymmetric photoionization method, and SPIDER(attosecond spectral phase interferometry for direct electric-field reconstruction). The second part introduces the principle and structure of inversion algorithms for extracting time-domain information of attosecond pulses from spectrograms obtained with an attosecond streak camera, including FROG-CRAB(frequency resolved optical gating for complete reconstruction of attosecond bursts), PROOF(phase retrieval by omega oscillation filtering), VTGPA(Volkov transform generalized projections algorithm), PROBP-AC

关 键 词：阿秒脉冲测量 阿秒条纹相机 阿秒条纹相机反演算法 光电离 

分 类 号：TN24[电子电信—物理电子学]